Choosing an Electrical Switch
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About Hazardous Location Environmental Ratings
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30 mm Emergency Stop Panel-Mount Push-Button Switches
Immediately cut power with a single push. These switches are rated for protection from low-pressure streams of water and oil/coolant spraying. They have positive force contacts that will open a circuit when actuated even if a spring fails or the contacts stick. Switches include enough contact blocks to control the number of circuits listed.
Turn twist switches back on by twisting the button and pull switches by pulling it. Add an optional lockout on either kind to cover the button and prevent changes its position.
Note: Illuminated switches include a bulb. If wiring the switch and the bulb to the same circuit, the circuit voltage must not exceed bulb voltage.
Additional contact blocks (sold separately) can be added to control more circuits, or to replace the included contact block.
| No. of Circuits Controlled | Switch Starting Position | Switch Action | No. of Terminals | Industry Designation | Actuator Color | Switching Current @ Voltage | Max. Voltage  | Dia. | Dp. Behind Panel | For Max. No. of Contact Blocks | Choose a Bulb Voltage | Each | |
Metal Base with Screw Terminals | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pull Reset | |||||||||||||
| 1 | 1 On (Normally Closed) | Stays Switched (Maintained) | 2 | SPST-NC | Red | 6 A @ 120 V AC, 5 A @ 24 V DC | 250V DC 600V AC | 1 1/2" | 1 1/2" | 8 | __ | 00000000 | 000000 |
| 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Stays Switched (Maintained) | 4 | DPST-1NO/1NC | Red | 6 A @ 120 V AC, 5 A @ 24 V DC | 250V DC 600V AC | 1 1/2" | 1 1/2" | 8 | __ | 00000000 | 000000 |
| 2 | 2 On (Normally Closed) | Stays Switched (Maintained) | 4 | DPST-NC | Red | 6 A @ 120 V AC, 5 A @ 24 V DC | 250V DC 600V AC | 1 1/2" | 1 1/2" | 8 | __ | 00000000 | 000000 |
Twist Reset | |||||||||||||
| 1 | 1 On (Normally Closed) | Stays Switched (Maintained) | 2 | SPST-NC | Red | 6 A @ 120 V AC, 5 A @ 24 V DC | 250V DC 600V AC | 1 1/2" | 1 1/2" | 8 | __ | 00000000 | 000000 |
| 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Stays Switched (Maintained) | 4 | DPST-1NO/1NC | Red | 6 A @ 120 V AC, 5 A @ 24 V DC | 250V DC 600V AC | 1 1/2" | 1 1/2" | 8 | __ | 00000000 | 000000 |
| 2 | 2 On (Normally Closed) | Stays Switched (Maintained) | 4 | DPST-NC | Red | 6 A @ 120 V AC, 5 A @ 24 V DC | 250V DC 600V AC | 1 1/2" | 1 1/2" | 8 | __ | 00000000 | 000000 |
Metal Base with Screw Terminals—Illuminated | |||||||||||||
Pull Reset | |||||||||||||
| 1 | 1 Off (Normally Open) | Stays Switched (Maintained) | 4 | SPST-NO | Red | 6 A @ 120 V AC, 5 A @ 24 V DC | 250V DC 600V AC | 1 1/2" | 2 1/16" | 4 | 0000000 | 000000 | |
| 1 | 1 On (Normally Closed) | Stays Switched (Maintained) | 4 | SPST-NC | Red | 6 A @ 120 V AC, 5 A @ 24 V DC | 250V DC 600V AC | 1 1/2" | 2 1/16" | 4 | 240V AC/240V DC | 00000000 | 000000 |
| 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Stays Switched (Maintained) | 6 | DPST-1NO/1NC | Red | 6 A @ 120 V AC, 5 A @ 24 V DC | 250V DC 600V AC | 1 1/2" | 2 15/16" | 4 | 0000000 | 000000 | |
| 2 | 2 On (Normally Closed) | Stays Switched (Maintained) | 6 | DPST-NC | Red | 6 A @ 120 V AC, 5 A @ 24 V DC | 250V DC 600V AC | 1 1/2" | 2 15/16" | 4 | 0000000 | 000000 | |
Plastic Base with Screw Terminals | |||||||||||||
Pull Reset | |||||||||||||
| 1 | 1 On (Normally Closed) | Stays Switched (Maintained) | 2 | SPST-NC | Red | 6 A @ 120 V AC, 5 A @ 24 V DC | 250V DC 600V AC | 1 1/2" | 1 1/2" | 8 | __ | 00000000 | 00000 |
| 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Stays Switched (Maintained) | 4 | DPST-1NO/1NC | Red | 6 A @ 120 V AC, 5 A @ 24 V DC | 250V DC 600V AC | 1 1/2" | 1 1/2" | 8 | __ | 00000000 | 000000 |
Twist Reset | |||||||||||||
| 1 | 1 On (Normally Closed) | Stays Switched (Maintained) | 2 | SPST-NC | Red | 6 A @ 120 V AC, 5 A @ 24 V DC | 250V DC 600V AC | 1 1/2" | 1 1/2" | 8 | __ | 00000000 | 00000 |
| 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | Stays Switched (Maintained) | 4 | DPST-1NO/1NC | Red | 6 A @ 120 V AC, 5 A @ 24 V DC | 250V DC 600V AC | 1 1/2" | 1 1/2" | 8 | __ | 00000000 | 000000 |
| 2 | 2 On (Normally Closed) | Stays Switched (Maintained) | 4 | DPST-NC | Red | 6 A @ 120 V AC, 5 A @ 24 V DC | 250V DC 600V AC | 1 1/2" | 1 1/2" | 8 | __ | 00000000 | 000000 |
Pull Reset | Twist Reset | |||||||
|---|---|---|---|---|---|---|---|---|
| Actuator Clarity | Actuator Color | Bulb Type | Bulb Color | Choose a Bulb Voltage | Each | Each | ||
Metal Base—Not Illuminated | ||||||||
| Opaque | Red | __ | __ | __ | 00000000 | 000000 | 00000000 | 000000 |
Metal Base—Illuminated | ||||||||
| Clear | Red | LED | Red | 24V AC/24V DC, 120V AC/120V DC, 240V AC/240V DC | 0000000 | 000000 | 000000 | 00 |
Plastic Base—Not Illuminated | ||||||||
| Opaque | Red | __ | __ | __ | 00000000 | 00000 | 00000000 | 00000 |
Bulb | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Voltage | Shape Number | Diameter | Overall Length | Bulb Material | Color | Light Technology | Rated Life, hrs. | Each | |
For 1 1/2" Diameter Switches | |||||||||
For Switches with 24V AC/24V DC Bulb | |||||||||
| 24V AC, 24V DC | T3 1/4 | 3/8" | 1 1/8" | Plastic | Red | LED | 100,000 | 00000000 | 000000 |
For Switches with 120V AC/120V DC Bulb | |||||||||
| 130V AC, 130V DC | T3 1/4 | 3/8" | 1 1/8" | Plastic | Red | LED | 100,000 | 00000000 | 00000 |
| For Maximum Padlock Shackle Diameter | Each | |
| 1/4" | 00000000 | 000000 |
Hazardous Location Foot Switches
These switches are rated for environments where hazardous material is present. Press the pedal with your foot for hands-free operation. They have an oversized guard that accommodates bulky footwear.
Hazardous location environmental ratings indicate whether manufacturers have included safety features in products to facilitate their safe use in a hazardous environment. Before selecting a product for a hazardous location, ensure it is rated for your environment. See About Hazardous Location Environmental Ratings.
Mounting | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| No. of Circuits Controlled | Switch Starting Position | Switch Action | Industry Designation | Switching Current @ Voltage | Fasteners Included | No. of Holes | Hole Dia. | Environmental Rating | Each | |
1 Speed with Screw Terminals | ||||||||||
Aluminum Housing with 1 Pedal, Oversized Guard, and Back Pivot | ||||||||||
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 20 A @ 125 V AC/250 V AC | No | 6 | 0.28" | NEC Class I Divisions 1, 2 Group D NEC Class II Divisions 1, 2 Groups F, G NEC Zone 1 Group IIA IP41 NEMA 2 NEMA 7 NEMA 9 | 0000000 | 0000000 |
| 2 | 2 Off (Normally Open) or 2 On (Normally Closed) | Springs Back (Momentary) | DPDT | 20 A @ 125 V AC/250 V AC | No | 6 | 0.28" | NEC Class I Divisions 1, 2 Group D NEC Class II Divisions 1, 2 Groups F, G NEC Zone 1 Group IIA IP41 NEMA 2 NEMA 7 NEMA 9 | 0000000 | 000000 |
Aluminum Housing with 2 Pedals, Oversized Guard, and Back Pivot | ||||||||||
| 2 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | SPDT | 20 A @ 125 V AC/250 V AC | No | 6 | 0.28" | NEC Class I Divisions 1, 2 Group D NEC Class II Divisions 1, 2 Groups F, G NEC Zone 1 Group IIA IP41 NEMA 2 NEMA 7 NEMA 9 | 0000000 | 000000 |