About Motor Switches and Starters
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Choosing an Electrical Switch
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Durable Disconnect Switches
Protected by a steel enclosure, these switches withstand tougher conditions than switches in a plastic housing. Also known as safety switches, they have quick-make/quick-break action to eliminate arcing and prolong switch life. They have a lockout to secure in the off position using a padlock (not included).
Switches with safety interlock keep the door closed when the switch is on and prevent the switch from turning on when the door is open.
Switches with a fuse holder are used where overload protection is needed. When the current exceeds the fuse’s rating, the fuse will blow, interrupting the circuit to prevent the switch from overheating, breaking, or causing a fire. These switches require rejection-style fuse clips when used with UL Class RK1, RK5, or T fuses. Note: Horsepower ratings are based on time-delay fuses installed.
Switches with a viewing window let you see the switch position without opening the enclosure.
For technical drawings and 3-D models, click on a part number.
Switches | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Switching | Rejection-Style Fuse Clips for RK1 and RK5 Fuse Class | |||||||||||||
Current, A | Voltage | Switch Action | Industry Designation | Electrical Phase (hp) | For No. of Wires | For Fuse Class | Ht. | Wd. | Environmental Rating | Specifications Met | Each | Each | ||
Enamel-Coated Steel with Black/Red Actuator | ||||||||||||||
3 Circuits with Lockout, Safety Interlock, Viewing Window | ||||||||||||||
| 30 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Single (10 hp @ 600 V AC) Three (30 hp @ 600 V AC) | 3 | __ | 14 5/8" | 7 9/16" | NEMA 1 | UL Listed, CSA Certified, Fed. Spec. WS-865C | 0000000 | 0000000 | 000000 | 00 |
| 60 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Single (30 hp @ 600 V AC) Three (60 hp @ 600 V AC) | 3 | __ | 18 1/8" | 9" | NEMA 1 | UL Listed, CSA Certified | 0000000 | 000000 | 000000 | 00 |
3 Circuits with Lockout, Safety Interlock, Fuse Holder, Viewing Window | ||||||||||||||
| 30 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Three (20 hp @ 600 V AC) | 3 | RK1, RK5, J, K5, H | 14 5/8" | 7 9/16" | NEMA 1 | UL Listed, CSA Certified, Fed. Spec. WS-865C | 0000000 | 000000 | 00000000 | 000000 |
| 30 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Three (20 hp @ 600 V AC) | 4 | RK1, RK5, J, K5, H | 14 5/8" | 7 9/16" | NEMA 1 | UL Listed, CSA Certified, Fed. Spec. WS-865C | 0000000 | 000000 | 00000000 | 00000 |
| 60 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Three (50 hp @ 600 V AC) | 3 | RK1, RK5, J, K5, H | 18 1/8" | 9" | NEMA 1 | UL Listed, CSA Certified | 0000000 | 000000 | 00000000 | 00000 |
| 60 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Three (50 hp @ 600 V AC) | 4 | RK1, RK5, J, K5, H | 18 1/8" | 9" | NEMA 1 | UL Listed, CSA Certified | 0000000 | 000000 | 00000000 | 00000 |
| 100 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Three (75 hp @ 600 V AC) | 4 | RK1, RK5, J, K5, H | 21 7/8" | 9" | NEMA 1 | UL Listed, CSA Certified | 0000000 | 000000 | 00000000 | 00000 |
| 200 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Three (150 hp @ 600 V AC) | 4 | RK1, RK5, J, K5, H | 29" | 17" | NEMA 1 | UL Listed, CSA Certified | 0000000 | 00000000 | 00000000 | 00000 |
Outdoor Durable Disconnect Switches
A raintight NEMA 3R rated enclosure protects these switches from falling liquids and light splashing. The enclosure is steel, so it withstands tougher conditions than plastic enclosures. All have quick-make/quick-break action to eliminate arcing and prolong switch life. They have a lockout to secure in the off position using a padlock (not included).
Switches with safety interlock keep the door closed when the switch is on, and prevent the switch from turning on when the door is open.
Use switches with a fuse holder where overload protection is needed. When the current exceeds the rating of the fuse, it blows. This interrupts the circuit and prevents overheating, damage, and fire. When used with UL Class RK1, RK5, or T fuses, they require rejection-style fuse clips. Note: Horsepower ratings are based on time-delay fuses installed.
Switches with a viewing window let you see the switch position without opening the enclosure.
For technical drawings and 3-D models, click on a part number.
Switches | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Switching | Rejection-Style Fuse Clips for RK1 and RK5 Fuse Class | |||||||||||
| Current, A | Voltage | Switch Action | Industry Designation | Electrical Phase (hp) | For No. of Wires | For Fuse Class | Ht. | Wd. | Each | Each | ||
Gray Enamel-Coated Steel with Black/Red Actuator | ||||||||||||
3 Circuits with Lockout, Safety Interlock, Viewing Window | ||||||||||||
| 30 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Single (10 hp @ 240 V AC) Three (30 hp @ 600 V AC) | 3 | __ | 15" | 7 3/4" | 0000000 | 0000000 | 000000 | 00 |
| 60 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Single (30 hp @ 240 V AC) Three (60 hp @ 600 V AC) | 3 | __ | 18 1/2" | 9 1/16" | 0000000 | 000000 | 000000 | 00 |
3 Circuits with Lockout, Safety Interlock, Fuse Holder, Viewing Window | ||||||||||||
| 30 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Three (20 hp @ 600 V AC) | 3 | RK1, RK5, J, H | 15" | 7 3/4" | 0000000 | 000000 | 00000000 | 000000 |
| 30 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Three (20 hp @ 600 V AC) | 4 | RK1, RK5, J, H | 15" | 7 3/4" | 0000000 | 000000 | 00000000 | 00000 |
| 60 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Three (50 hp @ 600 V AC) | 3 | RK1, RK5, J, H | 17 1/2" | 10 1/2" | 0000000 | 000000 | 00000000 | 00000 |
| 60 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Three (50 hp @ 600 V AC) | 4 | RK1, RK5, J, H | 18 1/2" | 9 1/16" | 0000000 | 000000 | 00000000 | 00000 |
| 100 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Three (75 hp @ 600 V AC) | 4 | RK1, RK5, J, H | 22 1/8" | 9 1/16" | 0000000 | 00000000 | 00000000 | 00000 |
| 200 | 600V AC/ 600V DC | Stays Switched (Maintained) | 3PST | Three (150 hp @ 600 V AC) | 4 | RK1, RK5, J, H | 29" | 17" | 0000000 | 00000000 | 00000000 | 00000 |
Enclosed Compact Disconnect Switches
Small yet mighty, these switches are about as tall and wide as an index card yet durable enough to mount directly to a wall. Their polycarbonate housing protects the switch and resists denting, chipping, and cracking. Rated IP65, the housing also seals out water even in frequently washed down areas. Don’t be fooled by their size—these switches can handle electrical loads comparable to a standard sized switch.
These switches cut power and keep it isolated to prevent equipment from starting up during inspection and maintenance. All have a lockout, so you can secure them in the off position with a padlock (not included).
For technical drawings and 3-D models, click on a part number.
Yellow Plastic Housing with Red Actuator | ||||||||
|---|---|---|---|---|---|---|---|---|
| Switching Current @ Voltage | Industry Designation | Electrical Phase (hp) | Ht. | Wd. | Environmental Rating | Specifications Met | Each | |
Stays Switched (Maintained) | ||||||||
3 Circuits with Lockout | ||||||||
| 12 A @ 600 V AC, 16 A @ 24 V DC | 3PST | Single (1/2 hp @ 120 V AC) Three (1 hp @ 120 V AC) Three (3 hp @ 240 V AC) | 4 3/4" | 3 13/16" | IP65 | UL Recognized Component, CSA Certified, UL 508 | 00000000 | 0000000 |
| 16 A @ 600 V AC, 20 A @ 24 V DC | 3PST | Single (1 hp @ 120 V AC) Three (2 hp @ 120 V AC) Three (5 hp @ 240 V AC) | 4 3/4" | 3 13/16" | IP65 | UL Recognized Component, CSA Certified, UL 508 | 00000000 | 000000 |
| 20 A @ 600 V AC, 25 A @ 24 V DC | 3PST | Single (1 1/2 hp @ 120 V AC) Three (3 hp @ 120 V AC) Three (5 hp @ 240 V AC) | 4 3/4" | 3 13/16" | IP65 | UL Recognized Component, CSA Certified, UL 508 | 00000000 | 000000 |
| 25 A @ 600 V AC, 32 A @ 24 V DC | 3PST | Single (2 hp @ 120 V AC) Three (3 hp @ 120 V AC) Three (7 1/2 hp @ 240 V AC) | 4 3/4" | 3 13/16" | IP65 | UL Recognized Component, CSA Certified, UL 508 | 00000000 | 000000 |
| 50 A @ 600 V AC, 50 A @ 24 V DC | 3PST | Single (3 hp @ 120 V AC) Three (15 hp @ 240 V AC) Three (7 1/2 hp @ 120 V AC) | 5 5/16" | 6 11/16" | IP65 | UL Recognized Component, CSA Certified, UL 508 | 00000000 | 000000 |
| 63 A @ 600 V AC, 80 A @ 24 V DC | 3PST | Single (5 hp @ 120 V AC) Three (10 hp @ 120 V AC) Three (20 hp @ 240 V AC) | 5 5/16" | 6 11/16" | IP65 | UL Recognized Component, CSA Certified, UL 508 | 00000000 | 000000 |
4 Circuits with Lockout | ||||||||
| 12 A @ 600 V AC, 16 A @ 24 V DC | 4PST | Single (1/2 hp @ 120 V AC) Three (1 hp @ 120 V AC) Three (3 hp @ 240 V AC) | 4 3/4" | 3 13/16" | IP65 | UL Recognized Component, CSA Certified | 00000000 | 000000 |
| 16 A @ 600 V AC, 20 A @ 24 V DC | 4PST | Single (1 hp @ 120 V AC) Three (2 hp @ 120 V AC) Three (5 hp @ 240 V AC) | 4 3/4" | 3 13/16" | IP65 | UL Recognized Component, CSA Certified | 00000000 | 000000 |
| 20 A @ 600 V AC, 25 A @ 24 V DC | 4PST | Single (1 1/2 hp @ 120 V AC) Three (3 hp @ 120 V AC) Three (5 hp @ 240 V AC) | 4 3/4" | 3 13/16" | IP65 | UL Recognized Component, CSA Certified | 00000000 | 000000 |
| 25 A @ 600 V AC, 32 A @ 24 V DC | 4PST | Single (2 hp @ 120 V AC) Three (3 hp @ 120 V AC) Three (7 1/2 hp @ 240 V AC) | 4 3/4" | 3 13/16" | IP65 | UL Recognized Component, CSA Certified | 00000000 | 000000 |
| 50 A @ 600 V AC, 50 A @ 24 V DC | 4PST | Single (3 hp @ 120 V AC) Three (15 hp @ 240 V AC) Three (7 1/2 hp @ 120 V AC) | 5 5/16" | 6 11/16" | IP65 | UL Recognized Component, CSA Certified | 00000000 | 000000 |
| 63 A @ 600 V AC, 80 A @ 24 V DC | 4PST | Single (5 hp @ 120 V AC) Three (10 hp @ 120 V AC) Three (20 hp @ 240 V AC) | 5 5/16" | 6 11/16" | IP65 | UL Recognized Component, CSA Certified | 00000000 | 000000 |
Hazardous Location Enclosed Disconnect Switches
With a housing that’s designed to contain an explosion, these switches are safe to use in areas where ignitable concentrations of flammable or combustible gas, dust, or fibers may be present. They meet NEC Class I Div. 1 and 2, Groups B, C, D, and Class II, Div. 1 and 2, Groups E, F, and G. Use them to cut power and keep it isolated, so equipment won’t accidentally start up during inspection or maintenance.
Made from aluminum, these switches also resist corrosion in wet or oily areas. They have a lockout, so you can secure them in the off position with a padlock (not included).
For technical drawings and 3-D models, click on a part number.
Switching | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Current, A | Voltage | Switch Action | Industry Designation | Electrical Phase (hp) | Ht. | Wd. | Environmental Rating | Each | ||
Powder-Coated Aluminum Housing with Red Actuator | ||||||||||
3 Circuits with Lockout | ||||||||||
| A | 30 | 600V AC | Stays Switched (Maintained) | 3PST | Three (30 hp @ 600 V AC) | 8 1/16" | 5 3/4" | NEC Class I Divisions 1, 2 Groups B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Zone 1 Groups IIB, IIA NEMA 4X NEMA 7 NEMA 9 | 0000000 | 000000000 |
Powder-Coated Aluminum Housing with Yellow Actuator | ||||||||||
3 Circuits with Lockout | ||||||||||
| B | 60 | 600V AC | Stays Switched (Maintained) | 3PST | Three (40 hp @ 600 V AC) | 13 1/16" | 8 1/8" | NEC Class I Divisions 1, 2 Groups B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Zone 1 Groups IIB, IIA NEMA 4X NEMA 7 NEMA 9 | 0000000 | 00000000 |
| B | 100 | 600V AC | Stays Switched (Maintained) | 3PST | Three (50 hp @ 600 V AC) | 13 1/16" | 8 1/8" | NEC Class I Divisions 1, 2 Groups B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Zone 1 Groups IIB, IIA NEMA 4X NEMA 7 NEMA 9 | 0000000 | 00000000 |
Enclosure Disconnect Switches
Install these switches inside an enclosure to prevent it from opening when power is on—turn the switch to disconnect power and release the door. Cut the shaft to fit the enclosure. Use a padlock (not included) to lock switches in the off position. Mount to DIN rail inside an enclosure; mounting depth is the distance from the panel door to the DIN rail. All meet at least one safety standard.
Switches with a fuse holder are used where overload protection is needed. When the current exceeds the fuse's rating, the fuse will blow, interrupting the circuit to prevent the switch from overheating, breaking, or causing a fire.
Add auxiliary contact blocks to send a signal or connect to another device, such as an alarm or indicating light.
For technical drawings and 3-D models, click on a part number.
Switches | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Switching | Replacement Shafts | Replacement Shaft Bases | |||||||||||||
| Current, A | Voltage | Electrical Phase (hp) | For No. of Fuses | For Fuse Class | Ht. | Wd. | For DIN Rail Ht., mm | Mounting Dp. | Environmental Rating | Each | Each | Each | |||
Gray Plastic Housing with Black Actuator | |||||||||||||||
3 Circuits—For 1 15/32" Panel Cutout Dia. | |||||||||||||||
| 30 | 600V AC | Single (Not Rated) Three (7 1/2 hp @ 240 V AC) Three (20 hp @ 600 V AC) | 3 | J | 5 11/32" | 5 7/8" | 35 | 7 7/8"-20 9/16" | IP20 | 00000000 | 0000000 | 00000000 | 000000 | 00000000 | 000000 |
| 60 | 600V AC | Single (Not Rated) Three (15 hp @ 240 V AC) Three (50 hp @ 600 V AC) | 3 | J | 5 11/32" | 5 7/8" | 35 | 7 7/8"-20 9/16" | IP20 | 00000000 | 000000 | 00000000 | 00000 | 00000000 | 00000 |
| 100 | 600V AC | Single (Not Rated) Three (30 hp @ 240 V AC) Three (75 hp @ 600 V AC) | 3 | J | 7 5/16" | 5 15/16" | 35 | 7 7/8"-20 9/16" | IP20 | 00000000 | 000000 | 00000000 | 00000 | 00000000 | 00000 |
Yellow Plastic Housing with Red Actuator | |||||||||||||||
3 Circuits—For 1 15/32" Panel Cutout Dia. | |||||||||||||||
| 30 | 600V AC | Single (Not Rated) Three (7 1/2 hp @ 240 V AC) Three (20 hp @ 600 V AC) | 3 | J | 5 11/32" | 5 7/8" | 35 | 7 7/8"-20 9/16" | IP20 | 00000000 | 000000 | 00000000 | 00000 | 00000000 | 00000 |
| 60 | 600V AC | Single (Not Rated) Three (15 hp @ 240 V AC) Three (50 hp @ 600 V AC) | 3 | J | 5 11/32" | 5 7/8" | 35 | 7 7/8"-20 9/16" | IP20 | 00000000 | 000000 | 00000000 | 00000 | 00000000 | 00000 |
| 100 | 600V AC | Single (Not Rated) Three (30 hp @ 240 V AC) Three (75 hp @ 600 V AC) | 3 | J | 7 5/16" | 5 15/16" | 35 | 7 7/8"-20 9/16" | IP20 | 00000000 | 000000 | 00000000 | 00000 | 00000000 | 00000 |
Undervoltage Disconnect Switches
Prevent motors and other equipment from overheating or failing from not having enough voltage. When the supply voltage falls below 35% of the rated voltage, these switches will automatically turn off to protect the circuit from undervoltage. Once the power is cut, they'll keep it isolated to prevent accidental startups during inspection and maintenance.
To prevent unauthorized use of these switches, you can lock them out with a padlock (not included). Even if a padlock blocks them from physically turning off, they’ll disconnect power to the actuator if voltage falls below a safe level.
For technical drawings and 3-D models, click on a part number.
Switching | ||||||||
|---|---|---|---|---|---|---|---|---|
| Current, A | Voltage | Electrical Phase (hp) | Ht. | Wd. | Dp. Behind Panel | Environmental Rating | Each | |
Gray Plastic Housing with Black Actuator | ||||||||
Stays Switched (Maintained) | ||||||||
2 Circuits with Lockout—For 1/2" Panel Cutout Dia. | ||||||||
| 40 | 230V AC | Single (1 1/2 hp @ 120 V AC) Single (3 hp @ 240 V AC) Three (7 1/2 hp @ 240 V AC) | 2 5/8" | 2 5/8" | 3 1/8" | IP54 | 0000000 | 0000000 |
| 60 | 230V AC | Single (3 hp @ 120 V AC) Single (7 1/2 hp @ 240 V AC) Three (10 hp @ 240 V AC) | 2 5/8" | 2 5/8" | 3 1/2" | IP54 | 0000000 | 000000 |
3 Circuits with Lockout—For 1/2" Panel Cutout Dia. | ||||||||
| 40 | 400V AC | Single (1 1/2 hp @ 120 V AC) Single (3 hp @ 240 V AC) Three (7 1/2 hp @ 240 V AC) | 2 5/8" | 2 5/8" | 3 1/8" | IP54 | 0000000 | 000000 |
| 60 | 400V AC | Single (3 hp @ 120 V AC) Single (7 1/2 hp @ 240 V AC) Three (10 hp @ 240 V AC) | 2 5/8" | 2 5/8" | 3 1/2" | IP54 | 0000000 | 000000 |
Yellow Plastic Housing with Red Actuator | ||||||||
Stays Switched (Maintained) | ||||||||
2 Circuits with Lockout—For 1/2" Panel Cutout Dia. | ||||||||
| 40 | 230V AC | Single (1 1/2 hp @ 120 V AC) Single (3 hp @ 240 V AC) Three (7 1/2 hp @ 240 V AC) | 2 5/8" | 2 5/8" | 3 1/8" | IP54 | 0000000 | 000000 |
| 60 | 230V AC | Single (3 hp @ 120 V AC) Single (7 1/2 hp @ 240 V AC) Three (10 hp @ 240 V AC) | 2 5/8" | 2 5/8" | 3 1/2" | IP54 | 0000000 | 000000 |
3 Circuits with Lockout—For 1/2" Panel Cutout Dia. | ||||||||
| 40 | 400V AC | Single (1 1/2 hp @ 120 V AC) Single (3 hp @ 240 V AC) Three (7 1/2 hp @ 240 V AC) | 2 5/8" | 2 5/8" | 3 1/8" | IP54 | 0000000 | 000000 |
| 60 | 400V AC | Single (3 hp @ 120 V AC) Single (7 1/2 hp @ 240 V AC) Three (10 hp @ 240 V AC) | 2 5/8" | 2 5/8" | 3 1/2" | IP54 | 0000000 | 000000 |
Enclosure Motor Switches
Designed to mount on an electrical enclosure, these switches control motors, lighting, and electric heat circuits. Your enclosure door will only open when the switch is turned to the off position. This ensures equipment is safely off before you open the electrical enclosure. For an extra layer of safety, use a padlock (not included) on the actuator lever to lock switches in the off position. These switches do not provide overload protection.
Cut the shaft to fit your enclosure. Mount to a DIN rail inside an enclosure; mounting depth is the distance from the panel door to the DIN rail.
For technical drawings and 3-D models, click on a part number.
Switching | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Current, A | Voltage | No. of Circuits Controlled | Electrical Phase (hp) | Switch Starting Position | Industry Designation | Ht. | Wd. | For DIN Rail Ht., mm | Mounting Dp. | Wire Connection Type | Environmental Rating | Each | |
Stays Switched (Maintained) | |||||||||||||
| 25 | 600V AC | 3 | Single (2 hp @ 240 V AC) Single (5 hp @ 480 V AC) Three (5 hp @ 240 V AC) Three (10 hp @ 480 V AC) | 3 Off (Normally Open) | 3PST-NO | 2.4" | 2.4" | 35 | 7 7/8"-14 5/8" | Screw Terminals | IP65 | 0000000 | 0000000 |
| 32 | 600V AC | 3 | Single (2 hp @ 240 V AC) Single (5 hp @ 480 V AC) Three (5 hp @ 240 V AC) Three (10 hp @ 480 V AC) | 3 Off (Normally Open) | 3PST-NO | 2.4" | 2.4" | 35 | 7 7/8"-14 5/8" | Screw Terminals | IP65 | 0000000 | 000000 |
| 40 | 600V AC | 3 | Single (3 hp @ 240 V AC) Single (5 hp @ 480 V AC) Three (5 hp @ 240 V AC) Three (10 hp @ 480 V AC) | 3 Off (Normally Open) | 3PST-NO | 2.4" | 2.4" | 35 | 7 7/8"-14 5/8" | Screw Terminals | IP65 | 0000000 | 000000 |
| 63 | 600V AC | 3 | Three (10 hp @ 240 V AC) Three (20 hp @ 480 V AC) | 3 Off (Normally Open) | 3PST-NO | 2.4" | 2.4" | 35 | 8 1/16"-15 9/16" | Screw Terminals | IP65 | 0000000 | 000000 |
| 80 | 600V AC | 3 | Three (15 hp @ 240 V AC) Three (30 hp @ 480 V AC) | 3 Off (Normally Open) | 3PST-NO | 2.4" | 2.4" | 35 | 8 1/16"-15 9/16" | Screw Terminals | IP65 | 0000000 | 000000 |
| 125 | 600V AC | 3 | Three (25 hp @ 240 V AC) Three (50 hp @ 480 V AC) | 3 Off (Normally Open) | 3PST-NO | 3.5" | 3.5" | 35 | 9 1/16"-16 9/16" | Screw Terminals | IP65 | 0000000 | 000000 |
| 175 | 600V AC | 3 | Three (30 hp @ 240 V AC) Three (50 hp @ 480 V AC) | 3 Off (Normally Open) | 3PST-NO | 3.5" | 3.5" | 35 | 9 1/16"-16 9/16" | Screw Terminals | IP65 | 0000000 | 000000 |
Frame-Mounted Safety Switches
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.
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. Flexible keys pivot at least 15°, making them easier to align with switches during installation.
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.
IP67 rated switches protect against temporary submersion. NEMA 4 rated switches protect against washdowns.
For technical drawings and 3-D models, click on a part number.
Housing | Conduit | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Style | No. of Circuits Controlled | Switch Starting Position | Switch Action | No. of Terminals | Industry Designation | Switching Current @ Voltage | Max. Voltage | Ht. | Wd. | Dp. | Trade Size | Thread Size | Thread Type | Key Included | Environmental Rating | Each | |
Screw Terminal Connection with Positive-Force Normally Closed Contacts | |||||||||||||||||
| C | 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Stays Switched (Maintained) | 4 | DPST-1NO/1NC | 10 A @ 120 V AC, 2 A @ 24 V DC | 250V AC 24V DC | 3.6" | 2.1" | 1.3" | 1/2 | __ | NPT | Yes | IP65, NEMA 4 | 00000000 | 0000000 |
| C | 3 | 1 Off (Normally Open) and 2 On (Normally Closed) | Stays Switched (Maintained) | 6 | 3PST-1NO/2NC | 4 A @ 230 V AC, 4 A @ 24 V DC | 500V AC 24V DC | 3.5" | 2" | 1.2" | __ | M16 | Metric | Yes | IP67 | 00000000 | 000000 |
| F | 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Stays Switched (Maintained) | 4 | DPST-1NO/1NC | 2 A @ 400 V AC | 400V AC | 4.4" | 1.6" | 1.6" | __ | M20 | Metric | No | IP67 | 000000000 | 00000 |
| F | 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Stays Switched (Maintained) | 4 | DPST-1NO/1NC | 2 A @ 400 V AC | 400V AC | 4.4" | 1.6" | 1.6" | 1/2 | __ | BSPP | No | IP67 | 000000000 | 000000 |
| F | 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Stays Switched (Maintained) | 4 | DPST-1NO/1NC | 2 A @ 400 V AC | 400V AC | 4.4" | 1.6" | 1.6" | 1/2 | __ | NPT | No | IP67 | 000000000 | 000000 |
| F | 2 | 2 On (Normally Closed) | Stays Switched (Maintained) | 4 | DPST-NC | 2 A @ 400 V AC | 400V AC | 4.4" | 1.6" | 1.6" | __ | M20 | Metric | No | IP67 | 000000000 | 00000 |
| F | 2 | 2 On (Normally Closed) | Stays Switched (Maintained) | 4 | DPST-NC | 2 A @ 400 V AC | 400V AC | 4.4" | 1.6" | 1.6" | 1/2 | __ | BSPP | No | IP67 | 000000000 | 00000 |
| F | 2 | 2 On (Normally Closed) | Stays Switched (Maintained) | 4 | DPST-NC | 2 A @ 400 V AC | 400V AC | 4.4" | 1.6" | 1.6" | 1/2 | __ | NPT | No | IP67 | 000000000 | 000000 |
Screw Terminal Connection with Positive-Force Normally Closed Contacts and Rotating Head | |||||||||||||||||
| D | 3 | 1 Off (Normally Open) and 2 On (Normally Closed) | Stays Switched (Maintained) | 6 | 3PST-1NO/2NC | 10 A @ 120 V AC, 2.5 A @ 125 V DC | 240V AC 250V DC | 3.8" | 1.2" | 1.2" | __ | M20 | Metric | No | IP67 | 00000000 | 00000 |
| G | 3 | 1 Off (Normally Open) and 2 On (Normally Closed) | Stays Switched (Maintained) | 6 | 3PST-1NO/2NC | 10 A @ 230 V AC, 4 A @ 24 V DC | 250V AC 24V DC | 4.3" | 1.6" | 1.4" | __ | M20 | Metric | No | IP67 | 00000000 | 000000 |
Screw Terminal Connection with Rotating Head | |||||||||||||||||
| H | 4 | 2 Off (Normally Open) and 2 On (Normally Closed) | Stays Switched (Maintained) | 8 | 4PST-2NO/2NC | 2.5 A @ 120 V AC, 1 A @ 125 V DC | 120V AC 125V DC | 7.1" | 1.5" | 1.5" | 1/2 | __ | NPT | No | IP67 | 00000000 | 000000 |
O'all | |||||||
|---|---|---|---|---|---|---|---|
| Angle Range | Adjustability | Lg. | Wd. | Mounting Fasteners Included | Each | ||
Straight Keys | |||||||
| For Style F | __ | __ | 53.7 mm | 52.4 mm | No | 000000000 | 000000 |
| For Style G | __ | __ | 86 mm | 32 mm | No | 00000000 | 00000 |
| For Style H | __ | __ | 48.5 mm | 35 mm | No | 00000000 | 00000 |
Flexible Keys | |||||||
| For Style D | 0°-15° | Up/Down/Left/Right | 48.9 mm | 55 mm | No | 000000000 | 00000 |
| For Style F | 0°-18° | Left/Right | 80.7 mm | 40 mm | No | 000000000 | 00000 |
| For Style G | 0°-15° | Up/Down/Left/Right | 105 mm | 40 mm | No | 00000000 | 000000 |
| For Style H | 0°-15° | Up/Down/Left/Right | 50.4 mm | 55 mm | No | 00000000 | 00000 |