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Breakthrough Current @ Voltage
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High-Power Circuit Breakers
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Shunt Trip |
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Circuit Breaker |
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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 | ||||||||||||||||||||
| 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 | 000000000 | ||
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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 |
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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 |
Harsh-Environment Circuit Breakers
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1 Pole—Lever Style | 1 Pole—Push-Button Style |
Built to resist vibration and corrosion in harsh environments, these circuit breakers protect against overload and short circuits in low-voltage automotive and other electronic applications. All are thermal, so they use the heat generated in overcurrent situations to trip the breaker.
Lever Manual Reset—Push-pull button and lever style breakers can be used as an on/off switch.
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, V DC | Breakthrough Current @ Voltage | No. of | Dia. | Mounting Fasteners Included | Wire Connection | Ht. | Wd. | Dp. | Temp. Range, ° F | Certification | Each | |||
1 Pole—Lever Style | |||||||||||||||
Thermal | |||||||||||||||
| 100 | 48 | 1,500 amp @ 48V DC | 3 | 0.19" | No | Screw Terminal | 3.44" | 2.32" | 1.72" | -40 to 185 | CE Marked | 4514K228 | 000000 | ||
1 Pole—Push-Button Style | |||||||||||||||
Thermal | |||||||||||||||
| 100 | 48 | 1,500 amp @ 48V DC | 2 | 0.25" | No | Screw Terminal | 2.89" | 1.9" | 1.44" | -40 to 185 | CE Marked | 4514K138 | 00000 | ||
Square D Secondary Circuit Breaker Boxes
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Connect these boxes to a main box—they do not have a main circuit breaker switch. They are single-phase, 3-wire, and can be mounted for top or bottom feed conduit connections. Also known as load centers.
NEMA 1 Enclosure Rating—NEMA 1 rated boxes are for indoor use.
NEMA 3R Enclosure Rating—NEMA 3R rated boxes are for outdoor use.
Breakthrough Current @ Voltage—Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
Cover | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
No. of Spaces | Current, amp | Voltage, V AC | Freq., Hz | Breakthrough Current @ Voltage | Mounting Location | Bus Bar Material | Attachment Style | Closure Method | Ht. | Wd. | Dp. | Certification | Each | |||
NEMA 1 Enclosure Rating | ||||||||||||||||
| 8 | 100 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Surface | Tin-Plated Copper | Lift Off | Screw | 12 5/8" | 8 7/8" | 3 3/4" | UL Listed | 6790K73 | 0000000 | ||
NEMA 3R Enclosure Rating | ||||||||||||||||
| 6 | 100 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Surface | Tin-Plated Copper | Hinged | Quick-Release Latch | 12 5/8" | 8 7/8" | 4 1/4" | UL Listed | 6790K69 | 000000 | ||
 |  |  |
QO Series, 1 Pole | QO Series, 2 Poles | QO Series, 3 Poles |
Circuit breakers meet UL 489 requirements for branch circuit protection, so they protect downstream equipment and wiring from overloads and short circuits.
Ground Fault Sensitivity—Circuit breakers with ground fault sensitivity will trip if they detect a current leak above 6mA. This minimizes the risk of electric shock to workers and equipment.
Current, amp | Voltage | Freq., Hz | Breakthrough Current @ Voltage | Mounting Location | Wire Connection Method | Wd. | Specs. Met | Certification | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
QO Series | ||||||||||||
1 Pole—Toggle Switch | ||||||||||||
| 15 | 120V AC/240V AC/48V DC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 3/4" | UL 489 | UL Listed | 6782K112 | 000000 | ||
| 20 | 120V AC/240V AC/48V DC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 3/4" | UL 489 | UL Listed | 6782K113 | 00000 | ||
| 30 | 120V AC/240V AC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 3/4" | UL 489 | UL Listed | 6782K12 | 00000 | ||
| 40 | 120V AC/240V AC/48V DC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 3/4" | UL 489 | UL Listed | 6782K301 | 00000 | ||
2 Poles—Toggle Switch | ||||||||||||
| 15 | 120V AC/240V AC/48V DC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 1 1/2" | UL 489 | UL Listed | 6782K212 | 00000 | ||
| 20 | 120V AC/240V AC/48V DC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 1 1/2" | UL 489 | UL Listed | 6782K213 | 00000 | ||
| 30 | 120V AC/240V AC/48V DC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 1 1/2" | UL 489 | UL Listed | 6782K214 | 00000 | ||
| 40 | 120V AC/240V AC/48V DC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 1 1/2" | UL 489 | UL Listed | 6782K215 | 00000 | ||
| 50 | 120V AC/240V AC/48V DC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 1 1/2" | UL 489 | UL Listed | 6782K216 | 00000 | ||
| 60 | 120V AC/240V AC/48V DC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 1 1/2" | UL 489 | UL Listed | 6782K217 | 00000 | ||
| 70 | 120V AC/240V AC/48V DC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 1 1/2" | UL 489 | UL Listed | 6782K22 | 000000 | ||
3 Poles—Toggle Switch | ||||||||||||
| 15 | 120V AC/240V AC/48V DC | 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 | 000000 | ||
| 20 | 120V AC/240V AC/48V DC | 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 | 120V AC/240V AC/48V DC | 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 | 120V AC/240V AC/48V DC | 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 | ||
QO Series with 6 mA Ground Fault Sensitivity | ||||||||||||
1 Pole—Toggle Switch | ||||||||||||
| 20 | 120V AC | 50/60 | 10,000 amp @ 120V AC | Breaker Box | Snap On | 3/4" | UL 489 | UL Listed | 6782K302 | 000000 | ||
| 30 | 120V AC | 50/60 | 10,000 amp @ 120V AC | Breaker Box | Snap On | 3/4" | UL 489 | UL Listed | 6782K303 | 000000 | ||
2 Poles—Toggle Switch | ||||||||||||
| 20 | 120V AC/240V AC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 1.5" | UL 489 | UL Listed | 6782K304 | 000000 | ||
| 30 | 120V AC/240V AC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 1.5" | UL 489 | UL Listed | 6782K305 | 000000 | ||
Square D Main Circuit Breaker Boxes
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These boxes have a main circuit breaker switch and main service knockouts in the corners. They are single-phase, 3-wire, and can be mounted for top or bottom feed conduit connections. Use with Square D QO circuit breakers. Also known as load centers.
NEMA 1 Enclosure Rating—Boxes are rated NEMA 1 for indoor use.
Breakthrough Current @ Voltage—Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
Cover | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
No. of Spaces | Current, amp | Voltage, V AC | Freq., Hz | Breakthrough Current @ Voltage | Mounting Profile | Mounting Location | Bus Bar Material | Attachment Style | Closure Method | Ht. | Wd. | Dp. | Certification | Each | |||
NEMA 1 Enclosure Rating | |||||||||||||||||
| 12 | 100 | 120/240 | 50/60 | 22,000 amp @ 120V AC 22,000 amp @ 240V AC | Recessed | Surface | Tin-Plated Copper | Lift Off | Screw | 14 7/8" | 14 1/4" | 3 3/4" | UL Listed | 6790K52 | 0000000 | ||
| 20 | 100 | 120/240 | 50/60 | 22,000 amp @ 120V AC 22,000 amp @ 240V AC | Recessed | Surface | Tin-Plated Copper | Lift Off | Screw | 17 7/8" | 14 1/4" | 3 3/4" | UL Listed | 6790K54 | 000000 | ||
| | |
QO Series, 1 Pole | QO Series, 2 Poles | QO Series, 3 Poles |
Circuit breakers meet UL 489 requirements for branch circuit protection, so they protect downstream equipment and wiring from overloads and short circuits.
Ground Fault Sensitivity—Circuit breakers with ground fault sensitivity will trip if they detect a current leak above 6mA. This minimizes the risk of electric shock to workers and equipment.
Current, amp | Voltage | Freq., Hz | Breakthrough Current @ Voltage | Mounting Location | Wire Connection Method | Wd. | Specs. Met | Certification | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
QO Series | ||||||||||||
1 Pole—Toggle Switch | ||||||||||||
| 15 | 120V AC/240V AC/48V DC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 3/4" | UL 489 | UL Listed | 6782K112 | 000000 | ||
| 20 | 120V AC/240V AC/48V DC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 3/4" | UL 489 | UL Listed | 6782K113 | 00000 | ||
| 30 | 120V AC/240V AC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 3/4" | UL 489 | UL Listed | 6782K12 | 00000 | ||
| 40 | 120V AC/240V AC/48V DC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 3/4" | UL 489 | UL Listed | 6782K301 | 00000 | ||
2 Poles—Toggle Switch | ||||||||||||
| 15 | 120V AC/240V AC/48V DC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 1 1/2" | UL 489 | UL Listed | 6782K212 | 00000 | ||
| 20 | 120V AC/240V AC/48V DC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 1 1/2" | UL 489 | UL Listed | 6782K213 | 00000 | ||
| 30 | 120V AC/240V AC/48V DC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 1 1/2" | UL 489 | UL Listed | 6782K214 | 00000 | ||
| 40 | 120V AC/240V AC/48V DC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 1 1/2" | UL 489 | UL Listed | 6782K215 | 00000 | ||
| 50 | 120V AC/240V AC/48V DC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 1 1/2" | UL 489 | UL Listed | 6782K216 | 00000 | ||
| 60 | 120V AC/240V AC/48V DC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 1 1/2" | UL 489 | UL Listed | 6782K217 | 00000 | ||
| 70 | 120V AC/240V AC/48V DC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC 5,000 amp @ 48V DC | Breaker Box | Snap On | 1 1/2" | UL 489 | UL Listed | 6782K22 | 000000 | ||
3 Poles—Toggle Switch | ||||||||||||
| 15 | 120V AC/240V AC/48V DC | 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 | 000000 | ||
| 20 | 120V AC/240V AC/48V DC | 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 | 120V AC/240V AC/48V DC | 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 | 120V AC/240V AC/48V DC | 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 | ||
QO Series with 6 mA Ground Fault Sensitivity | ||||||||||||
1 Pole—Toggle Switch | ||||||||||||
| 20 | 120V AC | 50/60 | 10,000 amp @ 120V AC | Breaker Box | Snap On | 3/4" | UL 489 | UL Listed | 6782K302 | 000000 | ||
| 30 | 120V AC | 50/60 | 10,000 amp @ 120V AC | Breaker Box | Snap On | 3/4" | UL 489 | UL Listed | 6782K303 | 000000 | ||
2 Poles—Toggle Switch | ||||||||||||
| 20 | 120V AC/240V AC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 1.5" | UL 489 | UL Listed | 6782K304 | 000000 | ||
| 30 | 120V AC/240V AC | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 1.5" | UL 489 | UL Listed | 6782K305 | 000000 | ||
Square D Homeline Main Circuit Breaker Boxes
 |
With a main breaker installed and main service knockouts, these boxes are the entry point for electricity into your facility and the first step in protecting your electrical systems. They are single-phase, 3-wire, and can be mounted for top or bottom feed conduit connections. Also known as load centers.
NEMA 1 Enclosure Rating—Boxes are rated NEMA 1 for indoor use.
Breakthrough Current @ Voltage—Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
Cover | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
No. of Spaces | Current, amp | Voltage, V AC | Freq., Hz | Breakthrough Current @ Voltage | Mounting Profile | Mounting Location | Bus Bar Material | Attachment Style | Closure Method | Ht. | Wd. | Dp. | Certification | Each | |||
NEMA 1 Enclosure Rating | |||||||||||||||||
| 12 | 100 | 120/240 | 50/60 | 22,000 amp @ 120V AC 22,000 amp @ 240V AC | Recessed | Surface | Tin-Plated Aluminum | Lift Off | Screw | 17 7/8" | 14 1/4" | 3 3/4" | UL Listed | 4412N11 | 0000000 | ||
 |  |  |
Homeline Series, 1 Pole | Homeline Series, 2 Poles | Homeline Series, 3 Poles |
Circuit breakers meet UL 489 requirements for branch circuit protection, so they protect downstream equipment and wiring from overloads and short circuits.
Ground Fault Sensitivity—Circuit breakers with ground fault sensitivity will trip if they detect a current leak above 6mA. This minimizes the risk of electric shock to workers and equipment.
Current, amp | Voltage, V AC | Freq., Hz | Breakthrough Current @ Voltage | Mounting Location | Wire Connection Method | Wd. | Specs. Met | Certification | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Homeline Series | ||||||||||||
1 Pole—Toggle Switch | ||||||||||||
| 15 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 1" | UL 489 | UL Listed | 69225K71 | 000000 | ||
| 20 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 1" | UL 489 | UL Listed | 69225K72 | 00000 | ||
| 30 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 1" | UL 489 | UL Listed | 69225K73 | 00000 | ||
| 40 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 1" | UL 489 | UL Listed | 69225K91 | 00000 | ||
| 50 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 1" | UL 489 | UL Listed | 69225K101 | 00000 | ||
1 Pole with Tandem Circuit—Toggle Switch | ||||||||||||
| 20 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 1" | UL 489 | UL Listed | 69225K84 | 00000 | ||
2 Poles—Toggle Switch | ||||||||||||
| 15 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 2" | UL 489 | UL Listed | 69225K92 | 00000 | ||
| 20 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 2" | UL 489 | UL Listed | 69225K75 | 00000 | ||
| 30 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 2" | UL 489 | UL Listed | 69225K76 | 00000 | ||
| 40 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 2" | UL 489 | UL Listed | 69225K77 | 00000 | ||
| 50 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 2" | UL 489 | UL Listed | 69225K102 | 00000 | ||
| 60 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 2" | UL 489 | UL Listed | 69225K103 | 00000 | ||
Homeline Series with 6 mA Ground Fault Sensitivity | ||||||||||||
1 Pole—Toggle Switch | ||||||||||||
| 20 | 120 | 50/60 | 10,000 amp @ 120V AC | Breaker Box | Snap On | 1" | UL 489 | UL Listed | 69225K82 | 000000 | ||
2 Poles—Toggle Switch | ||||||||||||
| 20 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 2" | UL 489 | UL Listed | 69225K104 | 000000 | ||
| 30 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 2" | UL 489 | UL Listed | 69225K105 | 000000 | ||
Square D Homeline Secondary Circuit Breaker Boxes
 |
Connect these boxes to a main box—they do not have a main circuit breaker switch. They are single-phase, 3-wire, and can be mounted for top or bottom feed conduit connections. Also known as load centers.
NEMA 1 Enclosure Rating—NEMA 1 rated boxes are for indoor use.
Breakthrough Current @ Voltage—Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
Cover | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
No. of Spaces | Current, amp | Voltage, V AC | Freq., Hz | Breakthrough Current @ Voltage | Mounting Location | Bus Bar Material | Attachment Style | Closure Method | Ht. | Wd. | Dp. | Certification | Each | |||
NEMA 1 Enclosure Rating | ||||||||||||||||
| 6 | 100 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Surface | Tin-Plated Aluminum | Lift Off | Screw | 12 5/8" | 8 7/8" | 3 7/8" | UL Listed | 6914K33 | 000000 | ||
| | |
Homeline Series, 1 Pole | Homeline Series, 2 Poles | Homeline Series, 3 Poles |
Circuit breakers meet UL 489 requirements for branch circuit protection, so they protect downstream equipment and wiring from overloads and short circuits.
Ground Fault Sensitivity—Circuit breakers with ground fault sensitivity will trip if they detect a current leak above 6mA. This minimizes the risk of electric shock to workers and equipment.
Current, amp | Voltage, V AC | Freq., Hz | Breakthrough Current @ Voltage | Mounting Location | Wire Connection Method | Wd. | Specs. Met | Certification | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Homeline Series | ||||||||||||
1 Pole—Toggle Switch | ||||||||||||
| 15 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 1" | UL 489 | UL Listed | 69225K71 | 000000 | ||
| 20 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 1" | UL 489 | UL Listed | 69225K72 | 00000 | ||
| 30 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 1" | UL 489 | UL Listed | 69225K73 | 00000 | ||
| 40 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 1" | UL 489 | UL Listed | 69225K91 | 00000 | ||
| 50 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 1" | UL 489 | UL Listed | 69225K101 | 00000 | ||
1 Pole with Tandem Circuit—Toggle Switch | ||||||||||||
| 20 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 1" | UL 489 | UL Listed | 69225K84 | 00000 | ||
2 Poles—Toggle Switch | ||||||||||||
| 15 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 2" | UL 489 | UL Listed | 69225K92 | 00000 | ||
| 20 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 2" | UL 489 | UL Listed | 69225K75 | 00000 | ||
| 30 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 2" | UL 489 | UL Listed | 69225K76 | 00000 | ||
| 40 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 2" | UL 489 | UL Listed | 69225K77 | 00000 | ||
| 50 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 2" | UL 489 | UL Listed | 69225K102 | 00000 | ||
| 60 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 2" | UL 489 | UL Listed | 69225K103 | 00000 | ||
Homeline Series with 6 mA Ground Fault Sensitivity | ||||||||||||
1 Pole—Toggle Switch | ||||||||||||
| 20 | 120 | 50/60 | 10,000 amp @ 120V AC | Breaker Box | Snap On | 1" | UL 489 | UL Listed | 69225K82 | 000000 | ||
2 Poles—Toggle Switch | ||||||||||||
| 20 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 2" | UL 489 | UL Listed | 69225K104 | 000000 | ||
| 30 | 120/240 | 50/60 | 10,000 amp @ 120V AC 10,000 amp @ 240V AC | Breaker Box | Snap On | 2" | UL 489 | UL Listed | 69225K105 | 000000 | ||
