Filter by
System of Measurement
Wire Connection
Actuator Height
Enclosure Rating
Switch Starting Position
Electrical Connection Type
Housing Material
Switch Action
Voltage
Export Control Classification Number (ECCN)
DFARS Specialty Metals
Safety Limit Switches
 |  |  |
Style A | Style B | Style C |
 |  |  |
Style D | Style E | Style G |
Protect machinery and ensure the safety of personnel—these switches have positive-force contacts that will open the circuit when actuated even if a spring fails or the contacts stick. When an object in motion comes into contact with the actuator, it sends a signal to open or close a circuit. These switches have the rapid-closing action of a snap-acting switch, but with a larger actuator. This makes them a good choice for use with large objects—for instance, a box on a conveyor runs into the switch, stopping the conveyor.
Plunger Actuator—Switches with a plunger actuator require a push to actuate, similar to a button.
Roller Plunger Actuator—Switches with a roller plunger actuator have a roller that moves parallel to the mounting direction when an object pushes the actuator. This reduces friction during actuation to limit wear and tear on your switch.
Roller Lever Actuator—Switches with a roller lever actuator use a lever with a roller at the end to activate. This allows parts to glide across the actuation surface with minimal friction, limiting wear and tear on your switch.
Wobble Stick Actuator—Switches with a wobble stick actuator have an arm that rotates 360°, so you don’t need to align it in a specific direction. Since the actuator is flexible, it won’t snap if pushed backward. That makes these switches a great choice for systems that get jammed often.
Styles D and E—Styles D, E, and F have an actuator that allows you to adjust its height, making it easier to align switch with the target during installation.
Plastic Actuator—Switches with a plastic actuator limit wear and tear on passing objects better than switches with a steel actuator.
Steel Actuator—Switches with a steel actuator are more durable than switches with a plastic actuator. They also handle higher loads.
Housing | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | No. of Circuits Controlled | Switch Starting Position | Switch Action | Switch Designation | Actuator Material | Switching Current @ Voltage | Max. Voltage | Actuation Torque, in·ozf | Operating Temp. Range, ° F | Actuator Ht. | No. of Terminals | Lg. | Ht. | Dp. | Housing Material | Conduit Trade Size | Enclosure Rating | Each | |||
Plunger Actuator | |||||||||||||||||||||
Screw-Terminal Wire Connection | |||||||||||||||||||||
| A | 1 | 1 Off or 1 On | Momentary | SPDT | Steel | 10 amp @ 600V AC, 10 amp @ 250V DC | 600V AC 250V DC | — | -13 to 185 | 1.3" | 5 | 1.7" | 3.2" | 1.7" | Zinc | 1/2 | NEMA 4, NEMA 13, IP67 | 6352K54 | 0000000 | ||
Roller Plunger Actuator | |||||||||||||||||||||
Screw-Terminal Wire Connection | |||||||||||||||||||||
| B | 1 | 1 Off or 1 On | Momentary | SPDT | Steel | 10 amp @ 600V AC, 10 amp @ 250V DC | 600V AC 250V DC | — | -13 to 185 | 1.8" | 5 | 1.7" | 3.2" | 1.7" | Zinc | 1/2 | NEMA 4, NEMA 13, IP67 | 6352K55 | 000000 | ||
Roller Lever Actuator | |||||||||||||||||||||
Screw-Terminal Wire Connection | |||||||||||||||||||||
| C | 1 | 1 Off or 1 On | Momentary | SPDT | Plastic | 10 amp @ 600V AC, 10 amp @ 250V DC | 600V AC 250V DC | — | -13 to 185 | 2.3" | 5 | 1.7" | 3.2" | 1.7" | Zinc | 1/2 | NEMA 4, NEMA 13, IP67 | 6352K101 | 000000 | ||
| D | 1 | 1 Off or 1 On | Momentary | SPDT | Plastic | 10 amp @ 600V AC, 10 amp @ 250V DC | 600V AC 250V DC | 46.4 | -40 to 185 | 2.1" to 4.2" | 5 | 1.7" | 3.2" | 1.7" | Zinc | 1/2 | NEMA 4, NEMA 13, IP67 | 6352K57 | 000000 | ||
| D | 1 | 1 Off or 1 On | Momentary | SPDT | Steel | 10 amp @ 600V AC, 10 amp @ 250V DC | 600V AC 250V DC | — | -40 to 185 | 2.5" to 4.5" | 5 | 1.7" | 3.2" | 1.7" | Zinc | 1/2 | NEMA 4, NEMA 13, IP67 | 6352K104 | 000000 | ||
| E | 1 | 1 Off or 1 On | Momentary | SPDT | Plastic | 10 amp @ 600V AC, 10 amp @ 250V DC | 600V AC 250V DC | — | -40 to 185 | 3.1" to 5.1" | 5 | 1.7" | 3.2" | 1.7" | Zinc | 1/2 | NEMA 4, NEMA 13, IP67 | 6352K105 | 000000 | ||
Wobble Stick Actuator | |||||||||||||||||||||
Screw-Terminal Wire Connection | |||||||||||||||||||||
| G | 1 | 1 Off or 1 On | Momentary | SPDT | Plastic | 10 amp @ 600V AC, 10 amp @ 250V DC | 600V AC 250V DC | — | -13 to 185 | 5.7" | 5 | 1.7" | 3.2" | 1.7" | Zinc | 1/2 | NEMA 4, NEMA 13, IP67 | 6352K102 | 000000 | ||
| G | 1 | 1 Off or 1 On | Momentary | SPDT | Steel | 10 amp @ 600V AC, 10 amp @ 250V DC | 600V AC 250V DC | — | -13 to 185 | 5.3" | 5 | 1.7" | 3.2" | 1.7" | Zinc | 1/2 | NEMA 4, NEMA 13, IP67 | 6352K103 | 000000 | ||
Low-Profile Limit Switches
 |  |  |
Style A | Style C | Style E |
Stack these slim switches together, or fit them into tight spaces. They're rated IP67 for protection from temporary submersion. When an object in motion comes into contact with the actuator, it sends a signal to open or close a circuit. These switches have the rapid-closing action of a snap-acting switch, but have a larger actuator for large objects. They’re often used on conveyor systems and elevators.
Plunger Actuator—Plunger actuators open or close circuits when objects push against them.
Roller Plunger Actuator—Roller plunger actuators open or close circuits when an object pushes against the roller, which moves the plunger. The roller moves parallel to the mounting direction, so it helps push the plunger even if the force isn’t straight on. The roller also reduces friction during actuation which prevents wear and tear over time.
Roller Lever Actuator—Roller lever actuators open or close circuits when material moves across the switch. The roller reduces friction during actuation which prevents wear and tear over time.
Plastic Housing and Powder-Coated Zinc Alloy Housing—Switches with plastic or powder-coated zinc alloy housings are rated NEMA 4 and 13 for protection from washdowns and oil/coolant spraying.
Housing | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | No. of Circuits Controlled | Switch Starting Position | Switch Action | Switch Designation | Switching Current @ Voltage | Max. Voltage | Actuation Torque, in·ozf | Operating Temp. Range, ° F | Actuator Ht. | No. of Wire Leads | Cable Lead Lg., ft. | Lg. | Ht. | Dp. | Housing Material | Enclosure Rating | Each | |||
Plunger Actuator | ||||||||||||||||||||
Wire Lead Connection | ||||||||||||||||||||
| A | 1 | 1 Off or 1 On | Momentary | SPDT | 3 amp @ 240V AC, 0.55 amp @ 125V DC | 240V AC 250V DC | — | -13 to 158 | 0.2" | 4 | 3 | 1.2" | 2.2" | 0.7" | Plastic | NEMA 4, NEMA 13, IP67 | 7076K53 | 000000 | ||
| A | 1 | 1 Off or 1 On | Momentary | SPDT | 3 amp @ 240V AC, 0.55 amp @ 125V DC | 240V AC 250V DC | — | -13 to 158 | 0.2" | 4 | 3 | 1.2" | 2.2" | 0.7" | Powder-Coated Zinc Alloy | NEMA 4, NEMA 13, IP67 | 7076K46 | 00000 | ||
Roller Plunger Actuator | ||||||||||||||||||||
Wire Lead Connection | ||||||||||||||||||||
| C | 1 | 1 Off or 1 On | Momentary | SPDT | 3 amp @ 240V AC, 0.55 amp @ 125V DC | 240V AC 250V DC | — | -13 to 158 | 0.6" | 4 | 3 | 1.2" | 2.2" | 0.7" | Plastic | NEMA 4, NEMA 13, IP67 | 7076K54 | 00000 | ||
| C | 1 | 1 Off or 1 On | Momentary | SPDT | 3 amp @ 240V AC, 0.55 amp @ 125V DC | 240V AC 250V DC | — | -13 to 158 | 0.6" | 4 | 3 | 1.2" | 2.2" | 0.7" | Powder-Coated Zinc Alloy | NEMA 4, NEMA 13, IP67 | 7076K47 | 00000 | ||
| C | 2 | 2 Off and 2 On | Momentary | DPDT | 3 amp @ 240V AC, 0.55 amp @ 125V DC | 240V AC 250V DC | — | -13 to 158 | 0.6" | 8 | 3 | 1.2" | 2.2" | 0.7" | Plastic | NEMA 4, NEMA 13, IP67 | 7076K57 | 00000 | ||
| C | 2 | 2 Off and 2 On | Momentary | DPDT | 3 amp @ 240V AC, 0.55 amp @ 125V DC | 240V AC 250V DC | — | -13 to 158 | 0.6" | 8 | 3 | 1.2" | 2.2" | 0.7" | Powder-Coated Zinc Alloy | NEMA 4, NEMA 13, IP67 | 7076K51 | 000000 | ||
Roller Lever Actuator | ||||||||||||||||||||
Wire Lead Connection | ||||||||||||||||||||
| E | 1 | 1 Off or 1 On | Momentary | SPDT | 3 amp @ 240V AC, 0.55 amp @ 125V DC | 240V AC 250V DC | 25.4 | -13 to 158 | 2.1" | 4 | 3 | 1.2" | 2.2" | 0.7" | Plastic | NEMA 4, NEMA 13, IP67 | 7076K52 | 00000 | ||
| E | 1 | 1 Off or 1 On | Momentary | SPDT | 3 amp @ 240V AC, 0.55 amp @ 125V DC | 240V AC 250V DC | 25.4 | -13 to 158 | 2.1" | 4 | 3 | 1.2" | 2.2" | 0.7" | Powder-Coated Zinc Alloy | NEMA 4, NEMA 13, IP67 | 7076K45 | 00000 | ||
| E | 2 | 2 Off and 2 On | Momentary | DPDT | 3 amp @ 240V AC, 0.55 amp @ 125V DC | 240V AC 250V DC | 24 | -13 to 158 | 2.1" | 8 | 3 | 1.2" | 2.2" | 0.7" | Plastic | NEMA 4, NEMA 13, IP67 | 7076K56 | 000000 | ||
| E | 2 | 2 Off and 2 On | Momentary | DPDT | 3 amp @ 240V AC, 0.55 amp @ 125V DC | 240V AC 250V DC | 24 | -13 to 158 | 2.1" | 8 | 3 | 1.2" | 2.2" | 0.7" | Powder-Coated Zinc Alloy | NEMA 4, NEMA 13, IP67 | 7076K49 | 00000 | ||
Enclosed Washdown Snap-Acting Switches
 |  |  |
Style A | Style B | Style C |
 |  |  |
Style D | Style E | Style F |
 |  |  |
Style G | Style H | Style J |
Housing | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | No. of Circuits Controlled | Switch Starting Position | Switch Action | Switch Designation | Switching Current @ Voltage | Max. Voltage | hp @ Switching Voltage | Operating Temp. Range, ° F | Actuator Ht. | Wire Connection | No. of Terminals | Lg. | Ht. | Dp. | Conduit Trade Size | Lever Lg. | Each | |||
Side Mount | ||||||||||||||||||||
Plunger Actuator Style | ||||||||||||||||||||
| A | 1 | 1 Off or 1 On | Momentary | SPDT | 15 amp @ 250V AC 0.5 amp @ 125V DC | 600V AC 250V DC | 1/4 hp @ 250V AC | -25 to 160 | 1" | Screw Terminal | 3 | 3.04" | 1.75" | 1" | 1/2 | — | 7778K66 | 0000000 | ||
Roller Plunger Actuator Style | ||||||||||||||||||||
| B | 1 | 1 Off or 1 On | Momentary | SPDT | 15 amp @ 250V AC 0.5 amp @ 125V DC | 600V AC 250V DC | 1/4 hp @ 250V AC | -25 to 160 | 1.6" | Screw Terminal | 3 | 3.04" | 1.75" | 1" | 1/2 | — | 7778K68 | 000000 | ||
Roller Lever Actuator Style | ||||||||||||||||||||
| C | 1 | 1 Off or 1 On | Momentary | SPDT | 15 amp @ 250V AC 0.5 amp @ 125V DC | 600V AC 250V DC | 1/4 hp @ 250V AC | -25 to 160 | 2.3" | Screw Terminal | 3 | 3.04" | 1.75" | 1" | 1/2 | 1.8" | 7778K69 | 000000 | ||
Wobble Stick Actuator Style | ||||||||||||||||||||
| D | 1 | 1 Off or 1 On | Momentary | SPDT | 15 amp @ 250V AC 0.5 amp @ 125V DC | 600V AC 250V DC | 1/4 hp @ 250V AC | -25 to 160 | 5.1" | Screw Terminal | 3 | 3.04" | 1.75" | 1" | 1/2 | — | 7778K67 | 000000 | ||
Cross Roller Plunger Actuator Style | ||||||||||||||||||||
| E | 1 | 1 Off or 1 On | Momentary | SPDT | 15 amp @ 250V AC 0.5 amp @ 125V DC | 600V AC 250V DC | 1/4 hp @ 250V AC | -25 to 160 | 1.6" | Screw Terminal | 3 | 3.04" | 1.75" | 1" | 1/2 | — | 7778K12 | 000000 | ||
Bottom Mount | ||||||||||||||||||||
Plunger Actuator Style | ||||||||||||||||||||
| F | 1 | 1 Off or 1 On | Momentary | SPDT | 15 amp @ 250V AC 0.5 amp @ 125V DC | 600V AC 250V DC | 1/4 hp @ 250V AC | -25 to 160 | 1" | Screw Terminal | 3 | 3.04" | 1.75" | 1" | 1/2 | — | 7778K24 | 000000 | ||
Lever Actuator Style | ||||||||||||||||||||
| G | 1 | 1 Off or 1 On | Momentary | SPDT | 15 amp @ 250V AC 0.5 amp @ 125V DC | 600V AC 250V DC | 1/4 hp @ 250V AC | -25 to 160 | 2.1" | Screw Terminal | 3 | 3.04" | 1.75" | 1" | 1/2 | 6" | 7778K26 | 000000 | ||
Roller Lever Actuator Style | ||||||||||||||||||||
| H | 1 | 1 Off or 1 On | Momentary | SPDT | 15 amp @ 250V AC 0.5 amp @ 125V DC | 600V AC 250V DC | 1/4 hp @ 250V AC | -25 to 160 | 2.3" | Screw Terminal | 3 | 3.04" | 1.75" | 1" | 1/2 | 1.8" | 7778K25 | 000000 | ||
Wobble Stick Actuator Style | ||||||||||||||||||||
| J | 1 | 1 Off or 1 On | Momentary | SPDT | 15 amp @ 250V AC 0.5 amp @ 125V DC | 600V AC 250V DC | 1/4 hp @ 250V AC | -25 to 160 | 5.1" | Screw Terminal | 3 | 3.04" | 1.75" | 1" | 1/2 | — | 7778K27 | 000000 | ||
Compact Safety Limit Switches
 |  |  |
Style A | Style B | Style C |
 |  |  |
Style D | Style E | Style F |
Shorter and thinner than other safety limit switches, these are sized to fit tight spaces. They protect machinery and ensure the safety of personnel. Positive-force contacts open the circuit when actuated, even if a spring fails or the contacts stick. They send a signal to your circuit when an object hits the actuator—for instance, a box on a conveyor runs into the switch, stopping the conveyor. They open and close circuits as fast as snap-acting switches, but they have a bigger actuator for large objects. All are NEMA and IP rated for protection from washdowns.
Plunger Actuator—Switches with a plunger actuator require a push to actuate, similar to a button.
Roller Plunger Actuator—Switches with a roller plunger actuator have a roller that moves parallel to the mounting direction when an object pushes the actuator. This reduces friction during actuation to limit wear and tear on your switch.
Roller Lever Actuator—Switches with a roller lever actuator use a lever with a roller at the end to activate. This allows parts to glide across the actuation surface with minimal friction, limiting wear and tear.
Rod Actuator—Switches with a rod actuator have a large actuation area with a rod extending out of the actuator’s body. They’re best where the object actuating the switch is far away.
Styles E and F—Styles E and F have an actuator that allows you to adjust its height, making it easier to align the switch with the target during installation.
NEMA 13 Enclosure Rating and IP67 Enclosure Rating—NEMA 13 and IP67 rated switches are protected from oil/coolant spraying and temporary submersion.
Housing | Conduit | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | No. of Circuits Controlled | Switch Starting Position | Switch Action | Switch Designation | Switching Current @ Voltage | Max. Voltage | Actuation Torque, in·ozf | Operating Temp. Range, ° F | Actuator Ht. | No. of Terminals | Lg. | Ht. | Dp. | Housing Material | Trade Size | Thread Size | Enclosure Rating | Each | |||
Plunger Actuator | |||||||||||||||||||||
Screw-Terminal Wire Connection | |||||||||||||||||||||
| A | 1 | 1 Off or 1 On | Momentary | SPDT | 10 amp @ 240V AC, 4 amp @ 24V DC | 240V AC 24V DC | — | -22 to 176 | 0.5" | 4 | 1.2" | 2.4" | 1.2" | Plastic | — | M20 | NEMA 4, IP65 | 65745K51 | 0000000 | ||
| A | 1 | 1 Off or 1 On | Momentary | SPDT | 10 amp @ 300V AC, 10 amp @ 250V DC | 300V AC 250V DC | — | -40 to 185 | 0.7" | 4 | 1.2" | 2.6" | 1.2" | Zinc | 1/2 | — | NEMA 4, NEMA 13, IP66, IP67 | 6352K41 | 00000 | ||
Roller Plunger Actuator | |||||||||||||||||||||
Screw-Terminal Wire Connection | |||||||||||||||||||||
| B | 1 | 1 Off or 1 On | Momentary | SPDT | 10 amp @ 240V AC, 4 amp @ 24V DC | 240V AC 24V DC | — | -22 to 176 | 1.2" | 4 | 1.2" | 2.4" | 1.2" | Plastic | — | M20 | NEMA 4, IP65 | 65745K52 | 000000 | ||
| B | 1 | 1 Off or 1 On | Momentary | SPDT | 10 amp @ 300V AC, 10 amp @ 250V DC | 300V AC 250V DC | — | -40 to 185 | 1.1" | 4 | 1.2" | 2.6" | 1.2" | Zinc | 1/2 | — | NEMA 4, NEMA 13, IP66, IP67 | 6352K42 | 000000 | ||
Roller Lever Actuator | |||||||||||||||||||||
Screw-Terminal Wire Connection | |||||||||||||||||||||
| C | 1 | 1 Off or 1 On | Momentary | SPDT | 10 amp @ 240V AC, 4 amp @ 24V DC | 240V AC 24V DC | — | -22 to 176 | 1.1" | 4 | 1.2" | 2.4" | 1.2" | Plastic | — | M20 | NEMA 4, IP65 | 65745K53 | 000000 | ||
| D | 1 | 1 Off or 1 On | Momentary | SPDT | 10 amp @ 300V AC, 10 amp @ 250V DC | 300V AC 250V DC | 17.6 | -40 to 185 | 2.1" | 4 | 1.2" | 2.6" | 1.2" | Zinc | 1/2 | — | NEMA 4, NEMA 13, IP66, IP67 | 6352K43 | 000000 | ||
| E | 1 | 1 Off or 1 On | Momentary | SPDT | 10 amp @ 300V AC, 10 amp @ 250V DC | 300V AC 250V DC | 17.6 | -40 to 185 | 1.6" to 3.3" | 4 | 1.2" | 2.6" | 1.2" | Zinc | 1/2 | — | NEMA 4, NEMA 13, IP66, IP67 | 6352K44 | 000000 | ||
Rod Actuator | |||||||||||||||||||||
Screw-Terminal Wire Connection | |||||||||||||||||||||
| F | 1 | 1 Off or 1 On | Momentary | SPDT | 10 amp @ 600V AC, 10 amp @ 250V DC | 600V AC 250V DC | 17.6 | -40 to 185 | 0.6" to 5.8" | 4 | 1.2" | 2.4" | 1.2" | Plastic | 1/2 | — | NEMA 4, NEMA 13, IP66, IP67 | 65745K18 | 00000 | ||
Tilt Switches
 |  |  |
Style A | Style B | Style C |
 |  | |
Style D | Style E |
Style | No. of Circuits Controlled | Switch Starting Position | Switch Designation | Switching Current @ Voltage | Max. Voltage | Differential Angle | No. of Wire Leads | Dia. | Lg. | Ht. | Dp. | Housing Material | Enclosure Rating | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ring-Terminal Wire Connection | |||||||||||||||||
| A | 1 | 1 Off | SPST-NO | 0.1 amp @ 120V AC, 0.25 amp @ 24V DC | 60V DC/120V AC | 15° | 2 | 0.53" | 1.88" | — | — | Plastic | NEMA 4, IP67 | 3108K1 | 000000 | ||
Spade-Terminal Wire Connection | |||||||||||||||||
| A | 1 | 1 Off | SPST-NO | 2.5 amp @ 120V AC | 280V AC | 15° | 2 | 0.53" | 1.88" | — | — | Plastic | NEMA 4, IP67 | 3108K2 | 00000 | ||
Wire Lead Connection | |||||||||||||||||
| B | 1 | 1 Off | SPST-NO | 20 amp @ 24V DC | 40V DC | 10° | 2 | 0.75" | 2" | — | — | Plastic | NEMA 4, IP67 | 3108K4 | 00000 | ||
| C | 1 | 1 Off | SPST-NO | 10 amp @ 12V DC | 18V DC | 30° | 2 | — | 1.22" | 1.07" | 0.8" | Plastic | NEMA 4, IP67 | 3108K3 | 00000 | ||
| D | 1 | 1 Off | SPST-NO | 15 amp @ 120V AC | 120V AC | 15° | 3 | — | 3" | 1.5" | 2" | Plastic | NEMA 4, IP67 | 3108K5 | 000000 | ||
| D | 1 | 1 Off | SPST-NO | 15 amp @ 220V AC | 220V AC | 15° | 3 | — | 3" | 1.5" | 2" | Plastic | NEMA 4, IP67 | 3108K6 | 000000 | ||
| E | 1 | 1 On | SPST-NC | 2 amp @ 120V AC | 220V AC | 25° | 2 | — | 1.5" | 0.8" | 1.3" | Plastic | NEMA 4, IP67 | 3108K8 | 00000 | ||
| E | 1 | 1 On | SPST-NC | 2 amp @ 120V AC | 220V AC | 40° | 2 | — | 1.5" | 0.8" | 1.3" | Plastic | NEMA 4, IP67 | 3108K7 | 00000 | ||
Sealed Low-Profile Limit Switches
 |
Style A |
A sealed actuator prevents these switches from jamming, even when exposed to sand, mud, or dirt. They're also rated IP67 for temporary submersion. With a slim design, you can stack them or fit them in tight spaces. When an object in motion comes into contact with the actuator, it sends a signal to open or close a circuit. These switches have the rapid-closing action of a snap-acting switch, but with a larger actuator. This makes them a good choice for use with large objects. For instance, a box on a conveyor runs into the switch, stopping the conveyor.
Plunger Actuator—Switches with a plunger actuator require a push to actuate, similar to a button.
Plastic Housing and Powder-Coated Zinc Alloy Housing—Switches with a powder-coated zinc alloy or plastic housing are rated NEMA 4 and 13 for protection from washdowns and oil/coolant spraying.
Housing | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | No. of Circuits Controlled | Switch Starting Position | Switch Action | Switch Designation | Switching Current @ Voltage | Max. Voltage | Operating Temp. Range, ° F | Actuator Ht. | No. of Wire Leads | Cable Lead Lg., ft. | Lg. | Ht. | Dp. | Housing Material | Enclosure Rating | Each | |||
Plunger Actuator | |||||||||||||||||||
Wire Lead Connection | |||||||||||||||||||
| A | 1 | 1 Off or 1 On | Momentary | SPDT | 3 amp @ 240V AC, 0.55 amp @ 125V DC | 240V AC 250V DC | -13 to 158 | 1.3" | 4 | 3 | 1.2" | 2.2" | 0.7" | Plastic | NEMA 4, NEMA 13, IP67 | 7076K55 | 000000 | ||
| A | 1 | 1 Off or 1 On | Momentary | SPDT | 3 amp @ 240V AC, 0.55 amp @ 125V DC | 240V AC 250V DC | -13 to 158 | 1.3" | 4 | 3 | 1.2" | 2.2" | 0.7" | Powder-Coated Zinc Alloy | NEMA 4, NEMA 13, IP67 | 7076K48 | 00000 | ||
Rotary Limit Switches
 |
Start or stop equipment after a set number of rotations to avoid over-rotation. For example, if attached to a crane spool, these switches will stop winding or unwinding cable after a certain number of rotations, preventing damage to equipment. Use their shaft to attach them to rotational equipment. They open and close circuits as fast as snap-acting switches.
Gear Speed Ratio—Gear speed ratio determines when these switches actuate. A gear speed ratio of 5:1 means they actuate after 5 rotations.
Housing | Shaft | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Gear Speed Ratio | No. of Circuits Controlled | Switch Starting Position | Switch Action | Switch Designation | Switching Current @ Voltage | Max. Voltage | Operating Temp. Range, ° F | No. of Terminals | Lg. | Ht. | Dp. | Housing Material | Type | Lg. | Dia. | Conduit Trade Size | Enclosure Rating | Each | |||
Rotary Actuator | |||||||||||||||||||||
Screw-Terminal Wire Connection | |||||||||||||||||||||
| 5:1 | 2 | 1 Off or 1 On | Momentary | SPDT | 15 amp @ 250V AC, 0.25 amp @ 250V DC | 480V AC 250V DC | -40 to 180 | 3 | 6" | 2.8" | 4.5" | Aluminum | Keyed | 1 1/2" | 1/2" | 1/2 | NEMA 4 | 7821N11 | 000000000 | ||
| 20:1 | 2 | 1 Off or 1 On | Momentary | SPDT | 15 amp @ 250V AC, 0.25 amp @ 250V DC | 480V AC 250V DC | -40 to 180 | 3 | 6" | 2.8" | 4.5" | Aluminum | Keyed | 1 1/2" | 1/2" | 1/2 | NEMA 4 | 7821N12 | 00000000 | ||
| 40:1 | 2 | 1 Off or 1 On | Momentary | SPDT | 15 amp @ 250V AC, 0.25 amp @ 250V DC | 480V AC 250V DC | -40 to 180 | 3 | 6" | 2.8" | 4.5" | Aluminum | Keyed | 1 1/2" | 1/2" | 1/2 | NEMA 4 | 7821N13 | 00000000 | ||
| 100:1 | 2 | 1 Off or 1 On | Momentary | SPDT | 15 amp @ 250V AC, 0.25 amp @ 250V DC | 480V AC 250V DC | -40 to 180 | 3 | 6" | 2.8" | 4.5" | Aluminum | Keyed | 1 1/2" | 1/2" | 1/2 | NEMA 4 | 7821N14 | 00000000 | ||
Heavy Duty Limit Switches
 |  |  |
Housing | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Actuation Direction | No. of Circuits Controlled | Switch Starting Position | Switch Action | Switch Designation | Switching Current @ Voltage | Max. Voltage | Actuation Torque, in·ozf | Operating Temp. Range, ° F | Actuator Ht. | For Max. Cable OD | No. of Terminals | Lg. | Ht. | Dp. | Housing Material | Enclosure Rating | Each | |||
Roller Lever Actuator | ||||||||||||||||||||
Screw-Terminal Wire Connection | ||||||||||||||||||||
| Left | 2 | 2 Off | Momentary | DPST-NO | 20 amp @ 120V AC, 5 amp @ 120V DC | 600V AC 600V DC | 150 | -10 to 185 | 5.7" | 0.5" | 4 | 2.3" | 5" | 3.4" | Aluminum | NEMA 4, NEMA 13, IP67 | 7904N22 | 0000000 | ||
| Left | 2 | 2 On | Momentary | DPST-NC | 20 amp @ 120V AC, 5 amp @ 120V DC | 600V AC 600V DC | 150 | -10 to 185 | 5.7" | 0.5" | 4 | 2.3" | 5" | 3.4" | Aluminum | NEMA 4, NEMA 13, IP67 | 7904N24 | 000000 | ||
| Right | 2 | 2 Off | Momentary | DPST-NO | 20 amp @ 120V AC, 5 amp @ 120V DC | 600V AC 600V DC | 150 | -10 to 185 | 5.7" | 0.5" | 4 | 2.3" | 5" | 2" | Aluminum | NEMA 4, NEMA 13, IP67 | 7904N21 | 000000 | ||
| Right | 2 | 2 On | Momentary | DPST-NC | 20 amp @ 120V AC, 5 amp @ 120V DC | 600V AC 600V DC | 150 | -10 to 185 | 5.7" | 0.5" | 4 | 2.3" | 5" | 2" | Aluminum | NEMA 4, NEMA 13, IP67 | 7904N23 | 000000 | ||
| Right | 2 | 1 Off and 1 On | Momentary | DPST-1NO/1NC | 20 amp @ 120V AC, 5 amp @ 120V DC | 600V AC 600V DC | 150 | -10 to 185 | 5.7" | 0.5" | 4 | 2.3" | 5" | 2" | Aluminum | NEMA 4, NEMA 13, IP67 | 7904N25 | 000000 | ||
Frame-Mounted Safety Switches
 |  |
Key Shown Actuating from the Side | Style C |
Also known as interlock switches, these ensure the safety of personnel by automatically shutting off power to machinery when an access door opens. Mount the switch to the door frame and mount a key to the door so that the key is inserted into the switch when the door is closed. When the door opens, the key is removed from the switch and the machine shuts down. They’re often used with machine guards for large robots.
Style C—Style A-G switches have positive-force, normally closed contacts that will open a circuit when the switch is actuated even if a spring fails or the contacts stick.
NEMA 4 Enclosure Rating—NEMA 4 rated switches protect against washdowns.
Key Included—All switches require an actuator key, but not all include one—check whether you need to pick out a separate actuator key. For some switch styles, you can also select the mounting orientation of the key.
Housing | Conduit | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | No. of Circuits Controlled | Switch Starting Position | Switch Action | No. of Terminals | Switch Designation | Switching Current @ Voltage | Max. Voltage | Ht. | Wd. | Dp. | Trade Size | Thread Type | Key Included | Enclosure Rating | Each | |||
Screw-Terminal Wire Connection with Positive-Force Normally Closed Contacts | ||||||||||||||||||
| C | 2 | 1 Off and 1 On | Maintained | 4 | DPST-1NO/1NC | 10 amp @ 120V AC, 2 amp @ 24V DC | 250V AC 24V DC | 3.6" | 2.1" | 1.3" | 1/2 | NPT | Yes | IP65, NEMA 4 | 65665K13 | 0000000 | ||
