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DIN-Rail Mount Equipment Circuit Breakers
 |
 |  |  |
Auxiliary Contact | Distribution Bar | Distribution Bar Terminal Cover |
 |  |  |
Distribution Bar End Cover | Shunt Trip | Extension Terminal |
Distribution bars simplify wiring by powering multiple adjacent circuit breakers without needing separate wires for each one. This cuts down on assembly time and space. Cut them to the number of terminals that you need.
Distribution bar terminal covers shield unused, live terminals on distribution bars to prevent injury and damage.
Auxiliary contacts send a signal to other equipment when the circuit trips. They can activate a warning light, initiate a shutdown, or start a backup power source.
Shunt trips receive a signal from equipment to trip your circuit breaker in situations other than overload or short circuit conditions. For example, use them with a smoke detector to shut off power to a system in the event of a fire.
Extension terminals raise the wire connection point above distribution bars for easy access to connect power to a set of circuit breakers.
Also known as supplemental protectors, these circuit breakers mount directly to DIN rail downstream from a branch circuit breaker to protect a single piece of equipment. Because they are thermal-magnetic, these breakers trip two ways. They either trip when heat is generated slowly by consistent low-level overload current, or they trip quickly when the magnetic coil senses a high-current short circuit.
Distribution bar end covers seal the live ends of distribution bars to prevent injury and damage.
B Trip
 |
3 Poles—Toggle-Switch Style |
B-trip circuit breakers are best for protecting sensitive equipment, such as programmable logic controllers (PLCs) and sensors, which could be damaged by a spike in current. These circuit breakers will trip if a rush of current reaches 3 to 5 times their rated current.
UL 1077—They are rated UL 1077 for protection against overloads and short circuits.
Current, A | Voltage, V AC | Freq., Hz | Breakthrough Current @ Voltage | For DIN Rail Size, mm | Mounting Location | Wire Connection | Ht. | Wd. | Dp. | Temp. Range, ° F | Specs. Met | Certification | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
3 Poles—Toggle-Switch Style | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Thermal/Magnetic | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K622 | 0000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 5 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K623 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 10 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K624 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 15 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K625 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 20 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K626 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 30 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K627 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
C Trip
|
3 Poles—Toggle-Switch Style |
C-trip circuit breakers are the most common. They’re best for applications such as lighting and control panels, where equipment startup causes a moderate spike in current. They won’t trip until a rush of current reaches 5 to 10 times their rated current.
UL 1077—They are rated UL 1077 for protection against overloads and short circuits.
Current, A | Voltage, V AC | Freq., Hz | Breakthrough Current @ Voltage | For DIN Rail Size, mm | Mounting Location | Wire Connection | Ht. | Wd. | Dp. | Temp. Range, ° F | Specs. Met | Certification | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
3 Poles—Toggle-Switch Style | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Thermal/Magnetic | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K642 | 0000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K643 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K644 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 4 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K645 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 5 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K81 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 6 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K646 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 8 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K647 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 10 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K82 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 15 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K83 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 20 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K84 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 25 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K648 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 30 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K85 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 40 | 277 480YV AC/277V AC | 50/60 | 5,000 amp @ 277V AC 5,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K86 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 50 | 277 480YV AC/277V AC | 50/60 | 5,000 amp @ 277V AC 5,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K87 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
D Trip
|
3 Poles—Toggle-Switch Style |
D-trip circuit breakers prevent nuisance tripping, so they are best for equipment that has a high spike in current at startup, such as transformers, power supplies, and heaters. They will not trip unless a rush of current reaches 10 to 20 times their rated current.
UL 1077—They are rated UL 1077 for protection against overloads and short circuits.
Current, A | Voltage, V AC | Freq., Hz | Breakthrough Current @ Voltage | For DIN Rail Size, mm | Mounting Location | Wire Connection | Ht. | Wd. | Dp. | Temp. Range, ° F | Specs. Met | Certification | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
3 Poles—Toggle-Switch Style | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Thermal/Magnetic | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1 | 277 480YV AC/277V AC | 50/60 | 5,000 amp @ 277V AC 5,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K663 | 0000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2 | 277 480YV AC/277V AC | 50/60 | 5,000 amp @ 277V AC 5,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K511 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3 | 277 480YV AC/277V AC | 50/60 | 5,000 amp @ 277V AC 5,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K512 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 4 | 277 480YV AC/277V AC | 50/60 | 5,000 amp @ 277V AC 5,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K664 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 5 | 277 480YV AC/277V AC | 50/60 | 5,000 amp @ 277V AC 5,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K513 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 6 | 277 480YV AC/277V AC | 50/60 | 5,000 amp @ 277V AC 5,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K665 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 8 | 277 480YV AC/277V AC | 50/60 | 5,000 amp @ 277V AC 5,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K666 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 10 | 277 480YV AC/277V AC | 50/60 | 5,000 amp @ 277V AC 5,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K514 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 15 | 277 480YV AC/277V AC | 50/60 | 5,000 amp @ 277V AC 5,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K515 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 20 | 277 480YV AC/277V AC | 50/60 | 5,000 amp @ 277V AC 5,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K516 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 25 | 277 480YV AC/277V AC | 50/60 | 5,000 amp @ 277V AC 5,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K667 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 30 | 277 480YV AC/277V AC | 50/60 | 5,000 amp @ 277V AC 5,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K668 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 40 | 277 480YV AC/277V AC | 50/60 | 5,000 amp @ 277V AC 5,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K517 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 50 | 277 480YV AC/277V AC | 50/60 | 5,000 amp @ 277V AC 5,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 3.15" | 2.09" | 2.36" | -40 to 165 | UL 1077, IEC 60947-2 | UL Listed, CSA Certified, CE Marked | 7026K669 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
High-Power Circuit Breakers
 |
Shunt Trip |
 |
Circuit Breaker |
 |
Undervoltage Trip |
Protect an area of a facility that has high-powered equipment. These circuit breakers are also known as molded case circuit breakers. Because these breakers are thermal-magnetic, they trip two ways. They either trip when heat is generated slowly by consistent low-level overload current, or they trip quickly when the magnetic coil senses a high-current short circuit. A switch lets you adjust when these breakers magnetically trip, so you don't need to replace them as your application changes. These breakers have internal accessory slots to fit shunt trips, auxiliary contacts, and undervoltage trips, saving space in your setup.
Undervoltage trips protect equipment from operating with less than their intended voltage by tripping a circuit breaker when the supply voltage drops below a set level. 30 amp to 250 amp breakers can only have one shunt trip or undervoltage trip installed. 400 amp to 600 amp breakers can accommodate one shunt trip and one undervoltage trip at the same time.
Shunt trips receive a signal from equipment to trip your circuit breaker in situations other than overload or short circuit conditions. For example, use them with a smoke detector to shut off power to a system in the event of a fire. 30 amp to 250 amp breakers can only have one shunt trip or undervoltage trip installed. 400 amp to 600 amp breakers can accommodate one shunt trip and one undervoltage trip at the same time.
UL 489—They meet UL 489 requirements for branch circuit protection.
Breakthrough Current @ Voltage—Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
Mounting Holes | Screw On | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Current, A | Voltage | Freq., Hz | Breakthrough Current @ Voltage | Inrush Current Setting, amp | For DIN Rail Size, mm | Mounting Location | No. of | Dia. | Mounting Fasteners Included | Wire Connection | Ht. | Wd. | Dp. | Temp. Range, ° F | Specs. Met | Certification | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
3 Poles—Toggle-Switch Style | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Thermal/Magnetic | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 30 | 600V DC 480V AC 600YV AC/347V AC | 50/60 | 65,000 amp @ 240V AC 25,000 amp @ 480V AC 14,000 amp @ 600V AC 14,000 amp @ 125V DC 50,000 amp @ 250V DC 50,000 amp @ 500V DC 50,000 amp @ 600V DC | 150; 180; 210; 240; 270; 300 | 35 | DIN Rail | 4 | 11/64" | Yes | Tab | 5.5" | 3" | 3" | -10 to 155 | UL 489, IEC 60947-2, IEC 81346-2 | UL Listed, CE Marked | 4434N11 | 0000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 60 | 600V DC 480V AC 600YV AC/347V AC | 50/60 | 65,000 amp @ 240V AC 25,000 amp @ 480V AC 14,000 amp @ 600V AC 14,000 amp @ 125V DC 50,000 amp @ 250V DC 50,000 amp @ 500V DC 50,000 amp @ 600V DC | 300; 360; 420; 480; 540; 600 | 35 | DIN Rail | 4 | 11/64" | Yes | Tab | 5.5" | 3" | 3" | -10 to 155 | UL 489, IEC 60947-2, IEC 81346-2 | UL Listed, CE Marked | 4434N12 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 100 | 600V DC 480V AC 600YV AC/347V AC | 50/60 | 65,000 amp @ 240V AC 25,000 amp @ 480V AC 14,000 amp @ 600V AC 14,000 amp @ 125V DC 50,000 amp @ 250V DC 50,000 amp @ 500V DC 50,000 amp @ 600V DC | 500; 600; 700; 800; 900; 1,000 | 35 | DIN Rail | 4 | 11/64" | Yes | Tab | 5.5" | 3" | 3" | -10 to 155 | UL 489, IEC 60947-2, IEC 81346-2 | UL Listed, CE Marked | 4434N13 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 125 | 600V DC 480V AC 600YV AC/347V AC | 50/60 | 65,000 amp @ 240V AC 25,000 amp @ 480V AC 14,000 amp @ 600V AC 14,000 amp @ 125V DC 50,000 amp @ 250V DC 50,000 amp @ 500V DC 50,000 amp @ 600V DC | 625; 750; 875; 1,000; 1,125; 1,250 | 35 | DIN Rail | 4 | 11/64" | Yes | Tab | 5.5" | 3" | 3" | -10 to 155 | UL 489, IEC 60947-2, IEC 81346-2 | UL Listed, CE Marked | 4434N14 | 00000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 150 | 600V DC 600V AC 600YV AC/347V AC | 50/60 | 85,000 amp @ 240V AC 35,000 amp @ 480V AC 18,000 amp @ 600V AC 50,000 amp @ 250V DC 50,000 amp @ 500V DC 50,000 amp @ 600V DC | 750; 900; 1,050; 1,200; 1,350; 1,500 | — | — | 4 | 3/16" | Yes | Tab | 7.3" | 4.1" | 3.3" | -10 to 155 | UL 489, IEC 60947-2, IEC 81346-2 | UL Listed, CE Marked | 4434N15 | 00000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 200 | 600V DC 600V AC 600YV AC/347V AC | 50/60 | 85,000 amp @ 240V AC 35,000 amp @ 480V AC 18,000 amp @ 600V AC 50,000 amp @ 250V DC 50,000 amp @ 500V DC 50,000 amp @ 600V DC | 1,000; 1,200; 1,400; 1,600; 1,800; 2,000 | — | — | 4 | 3/16" | Yes | Tab | 7.3" | 4.1" | 3.3" | -10 to 155 | UL 489, IEC 60947-2, IEC 81346-2 | UL Listed, CE Marked | 4434N16 | 00000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 225 | 600V DC 600V AC 600YV AC/347V AC | 50/60 | 85,000 amp @ 240V AC 35,000 amp @ 480V AC 18,000 amp @ 600V AC 50,000 amp @ 250V DC 50,000 amp @ 500V DC 50,000 amp @ 600V DC | 1,125; 1,350; 1,575; 1,800; 2,025; 2,250 | — | — | 4 | 3/16" | Yes | Tab | 7.3" | 4.1" | 3.3" | -10 to 155 | UL 489, IEC 60947-2, IEC 81346-2 | UL Listed, CE Marked | 4434N17 | 00000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 250 | 600V DC 600V AC 600YV AC/347V AC | 50/60 | 85,000 amp @ 240V AC 35,000 amp @ 480V AC 18,000 amp @ 600V AC 50,000 amp @ 250V DC 50,000 amp @ 500V DC 50,000 amp @ 600V DC | 1,250; 1,500; 1,750; 2,000; 2,250; 2,500 | — | — | 4 | 3/16" | Yes | Tab | 7.3" | 4.1" | 3.3" | -10 to 155 | UL 489, IEC 60947-2, IEC 81346-2 | UL Listed, CE Marked | 4434N18 | 00000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 400 | 750V DC 600V AC 600YV AC/347V AC | 50/60 | 85,000 amp @ 240V AC 35,000 amp @ 480V AC 18,000 amp @ 600V AC 50,000 amp @ 600V DC 10,000 amp @ 750V DC | 2,000; 2,400; 2,800; 3,200; 3,600; 4,000 | — | — | 4 | 7/32" | Yes | Tab | 9.8" | 5.4" | 5.4" | -10 to 155 | UL 489, IEC 60947-2, IEC 81346-2 | UL Listed, CE Marked | 4434N19 | 00000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 600 | 750V DC 600V AC 600YV AC/347V AC | 50/60 | 85,000 amp @ 240V AC 35,000 amp @ 480V AC 18,000 amp @ 600V AC 50,000 amp @ 600V DC 10,000 amp @ 750V DC | 3,000; 3,600; 4,200; 4,800; 5,400; 6,000 | — | — | 4 | 7/32" | Yes | Tab | 9.8" | 5.4" | 5.4" | -10 to 155 | UL 489, IEC 60947-2, IEC 81346-2 | UL Listed, CE Marked | 4434N21 | 00000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 |
Auxiliary contacts send a signal to other equipment when the circuit trips. They can activate a warning light, initiate a shutdown, or start a backup power source. Multiple auxiliary contacts can be used within one circuit breaker and can be placed in any of the accessory slots.
Voltage | Current, amp | Freq., Hz | Switch Designation | No. of Circuits Controlled | Switch Starting Position | Wire Connection | Ht. | Wd. | Dp. | Temp. Range, ° F | Specs. Met | Certification | Each | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 24V AC to 300V AC/24V DC to 250V DC | 6 | 50/60 | DPST | 2 | 1 Off and 1 On | Screw-Clamp Terminal | 2.57" | 0.28" | 1.36" | -10 to 155 | UL 489, IEC 60947-2 | UL Listed | 4434N23 | 0000000 |
 |
Install handles on the front cover of an electrical cabinet to turn these breakers on, off, or reset them without having to open the cabinet. Yet, these handles won’t prevent you from opening the electrical cabinet normally. You can also lock the handles in the on or off position with a padlock (not included) to prevent unauthorized changes to the circuit breaker.
For Circuit Breaker Current, amp | Ht. | Wd. | Projection | Mounting Fasteners Included | For Max. Padlock Shackle Dia. | Padlock Included | Temp. Range, ° F | Enclosure Rating | Specs. Met | Each | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 30, 60, 100, 125 | 2.95" | 2.95" | 2.16" | Yes | 3/8" | No | -10 to 155 | IP65, NEMA 4X, NEMA 12 | IEC 60947-2 | 4434N25 | 0000000 | |
| 150, 200, 225, 250 | 2.95" | 2.95" | 2.16" | Yes | 3/8" | No | -10 to 155 | IP65, NEMA 4X, NEMA 12 | IEC 60947-2 | 4434N26 | 000000 | |
| 400, 600 | 2.95" | 2.95" | 2.16" | Yes | 3/8" | No | -10 to 155 | IP65, NEMA 4X, NEMA 12 | IEC 60947-2 | 4434N27 | 000000 |
Square D Load-Center Circuit Breakers
QO Series
 |
QO Series, 3 Poles |
UL 489—They meet UL 489 requirements for branch circuit protection, so they protect downstream equipment and wiring from overloads and short circuits.
Breakthrough Current @ Voltage—Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
Current, A | Voltage | Freq., Hz | Breakthrough Current @ Voltage | Mounting Location | Wire Connection Method | Wd. | Specs. Met | Certification | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
3 Poles—Toggle Switch | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 15 | 48V DC 120V AC 240V AC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 2 1/4" | UL 489 | UL Listed | 6782K306 | 0000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 20 | 48V DC 120V AC 240V AC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 2 1/4" | UL 489 | UL Listed | 6782K307 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 30 | 48V DC 120V AC 240V AC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 2 1/4" | UL 489 | UL Listed | 6782K308 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 40 | 48V DC 120V AC 240V AC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 2 1/4" | UL 489 | UL Listed | 6782K309 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
QOB Series
 |
QOB Series, 3 Poles |
UL 489—They meet UL 489 requirements for branch circuit protection, so they protect downstream equipment and wiring from overloads and short circuits.
Breakthrough Current @ Voltage—Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
Current, A | Voltage | Freq., Hz | Breakthrough Current @ Voltage | Mounting Location | Wire Connection | Wd. | Specs. Met | Certification | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
3 Poles—Toggle Switch | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 15 | 48V DC 120V AC 240V AC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Panel Board | Screw-Clamp Terminal | 2 1/4" | UL 489 | UL Listed | 6782K711 | 0000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 20 | 48V DC 120V AC 240V AC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Panel Board | Screw-Clamp Terminal | 2 1/4" | UL 489 | UL Listed | 6782K712 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 30 | 48V DC 120V AC 240V AC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Panel Board | Screw-Clamp Terminal | 2 1/4" | UL 489 | UL Listed | 6782K713 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 40 | 48V DC 120V AC 240V AC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Panel Board | Screw-Clamp Terminal | 2 1/4" | UL 489 | UL Listed | 6782K312 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 50 | 48V DC 120V AC 240V AC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Panel Board | Screw-Clamp Terminal | 2 1/4" | UL 489 | UL Listed | 6782K313 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 60 | 48V DC 120V AC 240V AC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Panel Board | Screw-Clamp Terminal | 2 1/4" | UL 489 | UL Listed | 6782K314 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
DIN-Rail Mount Branch Circuit Breakers
 |
 |  | |
Extension Terminal | Distribution Bar Terminal Cover | Shunt Trip |
 |  | |
Auxiliary Contact | Distribution Bar |
Distribution bar terminal covers shield unused, live terminals on distribution bars to prevent injury and damage.
Auxiliary contacts send a signal to other equipment when the circuit trips. They can activate a warning light, initiate a shutdown, or start a backup power source.
Shunt trips receive a signal from equipment to trip your circuit breaker in situations other than overload or short circuit conditions. For example, use them with a smoke detector to shut off power to a system in the event of a fire.
Extension terminals raise the wire connection point above distribution bars for easy access to connect power to a set of circuit breakers.
Mount these circuit breakers directly to DIN rail to protect equipment and wiring in an area of your facility from overloads and short circuits. Because they are thermal-magnetic, these breakers trip two ways. They either trip when heat is generated slowly by consistent low-level overload current, or they trip quickly when the magnetic coil senses a high-current short circuit.
Distribution bars simplify wiring by powering multiple adjacent circuit breakers without needing separate wires for each one. This cuts down on assembly time and space.
B Trip
 |
3 Poles—Toggle-Switch Style |
B-trip circuit breakers are best for protecting sensitive equipment, such as programmable logic controllers (PLCs) and sensors, which could be damaged by a spike in current. These circuit breakers will trip if a rush of current reaches 3 to 5 times their rated current.
UL 489—They meet UL 489 requirements for branch circuit protection and are certified as current limiting, so they protect equipment by minimizing passing current during a short circuit.
Voltage, V AC | Freq., Hz | For DIN Rail Size, mm | Wire Connection | Ht. | Wd. | Dp. | Temp. Range, ° F | Specs. Met | Certification | Choose a Current, A | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
3 Poles—Toggle-Switch Style | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 277 480YV AC/277V AC | 50/60 | 35 | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 1 , 5 , 10 , 15 , 20 , 30 | 5789T203 | 0000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
C Trip
|
3 Poles—Toggle-Switch Style |
C-trip circuit breakers are the most common. They’re best for applications such as lighting and control panels, where equipment startup causes a moderate spike in current. They won’t trip until a rush of current reaches 5 to 10 times their rated current.
UL 489—They meet UL 489 requirements for branch circuit protection and are certified as current limiting, so they protect equipment by minimizing passing current during a short circuit.
Breakthrough Current @ Voltage—Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
Voltage, V AC | Freq., Hz | Breakthrough Current @ Voltage | For DIN Rail Size, mm | Mounting Location | Wire Connection | Ht. | Wd. | Dp. | Temp. Range, ° F | Specs. Met | Certification | Choose a Current, A | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
3 Poles—Toggle-Switch Style | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Thermal/Magnetic | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 240 | 50/60 | 10,000 amp @ 240V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 35 , 40 | 5789T207 | 0000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 240 | 50/60 | 10,000 amp @ 240V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 50 , 63 | 5789T208 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 1/2 | 5789T129 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 1 | 5789T131 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 1 1/2 | 5789T132 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 2 | 5789T133 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 3 | 5789T134 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 4 | 5789T135 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 5 | 5789T91 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 6 | 5789T136 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 7 | 5789T137 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 8 | 5789T138 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 10 | 5789T92 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 13 | 5789T139 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 30 | 5789T95 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 32 | 5789T143 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 277 480YV AC/277V AC | 50/60 | 14,000 amp @ 277V AC 14,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 15 | 5789T93 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 277 480YV AC/277V AC | 50/60 | 14,000 amp @ 277V AC 14,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 16 | 5789T141 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 277 480YV AC/277V AC | 50/60 | 14,000 amp @ 277V AC 14,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 20 | 5789T94 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 277 480YV AC/277V AC | 50/60 | 14,000 amp @ 277V AC 14,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 25 | 5789T142 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
D Trip
|
3 Poles—Toggle-Switch Style |
D-trip circuit breakers prevent nuisance tripping, so they are best for equipment that has a high spike in current at startup, such as transformers, power supplies, and heaters. They will not trip unless a rush of current reaches 10 to 20 times their rated current.
UL 489—They meet UL 489 requirements for branch circuit protection and are certified as current limiting, so they protect equipment by minimizing passing current during a short circuit.
Breakthrough Current @ Voltage—Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
Current, A | Voltage, V AC | Freq., Hz | Breakthrough Current @ Voltage | For DIN Rail Size, mm | Mounting Location | Wire Connection | Ht. | Wd. | Dp. | Temp. Range, ° F | Specs. Met | Certification | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
3 Poles—Toggle-Switch Style | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Thermal/Magnetic | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 5789T45 | 0000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 5789T611 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 5789T612 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 4 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 5789T451 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 5 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 5789T613 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 6 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 5789T452 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 8 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 5789T453 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 10 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 5789T614 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 15 | 277 480YV AC/277V AC | 50/60 | 14,000 amp @ 277V AC 14,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 5789T615 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 20 | 277 480YV AC/277V AC | 50/60 | 14,000 amp @ 277V AC 14,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 5789T616 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 25 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 5789T454 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 30 | 277 480YV AC/277V AC | 50/60 | 10,000 amp @ 277V AC 10,000 amp @ 480V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 5789T617 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 40 | 240 | 50/60 | 10,000 amp @ 240V AC | 35 | DIN Rail | Screw-Clamp Terminal | 4.13" | 2.09" | 2.36" | -10 to 165 | UL 489, IEC 60947-2 | CSA Certified, CE Marked | 5789T455 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
