Choosing an Electrical Switch
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Enclosed Disconnect Switches
Cut power and keep it isolated to prevent equipment from starting up during inspection and maintenance. These switches are housed in a protective enclosure that resists denting, chipping, and cracking. Mount them to the wall when you run out of space in an electrical panel.
Switches with lockout secure in the off position with a padlock with a maximum shackle diameter of 5/16” (not included).
Photovoltaic switches can be used with photovoltaic cells which convert sunlight into electricity.
Add auxiliary contact blocks to send a signal or connect to another device, such as an alarm or indicating light.
Use additional power poles to control more than three circuits. Add neutral poles to open and close the neutral leg of a three phase system.
For technical drawings and 3-D models, click on a part number.
Switching | Plastic Housing with Red Actuator | ||||||
|---|---|---|---|---|---|---|---|
Current, A | Voltage | Industry Designation | Ht. | Wd. | Environmental Rating | Each | |
Stays Switched (Maintained) | |||||||
2 Circuits with Lockout/Photovoltaic | |||||||
| 32 | 800V DC | DPST | 11" | 7 1/2" | IP66, IP67, NEMA 3S, NEMA 6P, NEMA 12 | 0000000 | 0000000 |
| "Main Switch" Label with Adhesive Back—13/16" Ht. × 3 3/16" Wd. | 0000000 | Each | 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 |
Manual Override Enclosure Disconnect Switches
Keep power running while you access your enclosure. Unlike standard enclosure disconnect switches, which shut off power as you open your enclosure, these have an override function. Engaging the override allows you to take voltage reading, troubleshoot an error code, or fine tune the speed of your line. When the override is off, these work like a standard disconnect switch—a safety interlock prevents your enclosure from opening when power is on. The interlock also prevents the switch from turning on when the door is already open. Cut the shaft to fit your enclosure. All have a lockout so you can secure them in the off position with a padlock (not included).
Add auxiliary contact blocks to send a signal or connect to another device, such as an alarm or indicating light.
Use additional power poles to control more than three circuits. Add neutral poles to open and close the neutral leg of a three-phase system.
Add junction blocks to connect a ground wire.
Terminal covers prevent contact with live terminals.
For technical drawings and 3-D models, click on a part number.
Switching | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Current, A | Voltage | Electrical Phase (hp) | Ht. | Wd. | For DIN Rail Ht., mm | Mounting Dp. | Environmental Rating | Each | |
Black Plastic Housing with Black Actuator | |||||||||
3 Circuits with Lockout, Safety Interlock—For 1 1/2" Panel Cutout Dia. | |||||||||
| 25 | 600V AC | Single (3/4 hp @ 120 V AC) Single (1 1/2 hp @ 240 V AC) Three (1 1/2 hp @ 120 V AC) Three (3 hp @ 240 V AC) | 3" | 4 1/16" | 35 | 4 7/8"-15 3/4" | IP66, NEMA 4X, NEMA 12 | 0000000 | 0000000 |
| 32 | 600V AC | Single (1 hp @ 120 V AC) Single (2 hp @ 240 V AC) Three (2 hp @ 120 V AC) Three (5 hp @ 240 V AC) | 3" | 4 1/16" | 35 | 4 7/8"-15 3/4" | IP66, NEMA 4X, NEMA 12 | 0000000 | 000000 |
| 50 | 600V AC | Single (1 1/2 hp @ 120 V AC) Single (3 hp @ 240 V AC) Three (3 hp @ 120 V AC) Three (7 1/2 hp @ 240 V AC) | 3" | 4 1/16" | 35 | 5 5/16"-16 1/8" | IP66, NEMA 4X, NEMA 12 | 0000000 | 000000 |
| 63 | 600V AC | Single (3 hp @ 120 V AC) Single (5 hp @ 240 V AC) Three (5 hp @ 120 V AC) Three (10 hp @ 240 V AC) | 3" | 4 1/16" | 35 | 5 5/16"-16 1/8" | IP66, NEMA 4X, NEMA 12 | 0000000 | 000000 |
| 80 | 600V AC | Single (3 hp @ 120 V AC) Single (10 hp @ 240 V AC) Three (7 1/2 hp @ 120 V AC) Three (20 hp @ 240 V AC) | 3" | 4 1/16" | 35 | 5 11/16"-16 1/2" | IP66, NEMA 4X, NEMA 12 | 0000000 | 000000 |
| 100 | 600V AC | Single (5 hp @ 120 V AC) Single (10 hp @ 240 V AC) Three (10 hp @ 120 V AC) Three (25 hp @ 240 V AC) | 3" | 4 1/16" | 35 | 5 11/16"-16 1/2" | IP66, NEMA 4X, NEMA 12 | 0000000 | 000000 |
Black Plastic Housing with Red Actuator | |||||||||
3 Circuits with Lockout, Safety Interlock—For 1 1/2" Panel Cutout Dia. | |||||||||
| 25 | 600V AC | Single (3/4 hp @ 120 V AC) Single (1 1/2 hp @ 240 V AC) Three (1 1/2 hp @ 120 V AC) Three (3 hp @ 240 V AC) | 3" | 4 1/16" | 35 | 4 7/8"-15 3/4" | IP66, NEMA 4X, NEMA 12 | 0000000 | 000000 |
| 32 | 600V AC | Single (1 hp @ 120 V AC) Single (2 hp @ 240 V AC) Three (2 hp @ 120 V AC) Three (5 hp @ 240 V AC) | 3" | 4 1/16" | 35 | 4 7/8"-15 3/4" | IP66, NEMA 4X, NEMA 12 | 0000000 | 000000 |
| 50 | 600V AC | Single (1 1/2 hp @ 120 V AC) Single (3 hp @ 240 V AC) Three (3 hp @ 120 V AC) Three (7 1/2 hp @ 240 V AC) | 3" | 4 1/16" | 35 | 5 5/16"-16 1/8" | IP66, NEMA 4X, NEMA 12 | 0000000 | 000000 |
| 63 | 600V AC | Single (3 hp @ 120 V AC) Single (5 hp @ 240 V AC) Three (5 hp @ 120 V AC) Three (10 hp @ 240 V AC) | 3" | 4 1/16" | 35 | 5 5/16"-16 1/8" | IP66, NEMA 4X, NEMA 12 | 0000000 | 000000 |
| 80 | 600V AC | Single (3 hp @ 120 V AC) Single (10 hp @ 240 V AC) Three (7 1/2 hp @ 120 V AC) Three (20 hp @ 240 V AC) | 3" | 4 1/16" | 35 | 5 11/16"-16 1/2" | IP66, NEMA 4X, NEMA 12 | 0000000 | 000000 |
| 100 | 600V AC | Single (5 hp @ 120 V AC) Single (10 hp @ 240 V AC) Three (10 hp @ 120 V AC) Three (25 hp @ 240 V AC) | 3" | 4 1/16" | 35 | 5 11/16"-16 1/2" | IP66, NEMA 4X, NEMA 12 | 0000000 | 000000 |
Switching | ||||||
|---|---|---|---|---|---|---|
| No. of Circuits Controlled | Current, A | Voltage | Switch Starting Position | Industry Designation | Each | |
| 1 | 10 | 600V AC | 1 Off (Normally Open) or 1 On (Normally Closed) | SPDT | 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.
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. NEMA 6 rated switches protect against both temporary submersion and 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 Type | Key Included | Environmental Rating | Each | |
Screw Terminal Connection with Positive-Force Normally Closed Contacts | ||||||||||||||||
| B | 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Stays Switched (Maintained) | 4 | DPST-1NO/1NC | 5 A @ 120 V AC, 2 A @ 24 V DC | 500V AC 250V DC | 3" | 1" | 1.1" | 1/2 | NPT | Yes | IP67, NEMA 6 | 00000000 | 0000000 |
| 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 | 000000 |