About Hazardous Location Environmental Ratings
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Choosing an Electrical Switch
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Hazardous Location 30 mm Panel-Mount Push-Button Switches
Actuate these switches with a quick push. A housing seals in anything that could ignite flammable material, so you can use them where ignitable gas and dust may be present. You’ll know they’re safe because they meet NEC Class I Div. 2, Groups B, C, D for hazardous locations. Install them in a standard panel cutout.
Mushroom switches have a button that sticks out from the panel. Because they’re easy to identify and actuate, these switches are often used to stop equipment. They have a twist reset, so they’ll return to their starting position when you rotate the button.
Switches come with a contact block for each number of circuits they control. 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. | For Max. Panel Thick. | Dp. Behind Panel | For Max. No. of Contact Blocks | Each | |
Plastic Base with Screw Terminals | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mushroom with Twist Reset | |||||||||||||
| 1 | 1 On (Normally Closed) | Stays Switched (Maintained) | 2 | SPST-NC | Red | 6 A @ 120 V AC, 1.1 A @ 120 V DC | 255V DC 690V AC | 1 5/8" | 1/4" | 2 9/16" | 2 | 0000000 | 0000000 |
| 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Stays Switched (Maintained) | 3 | SPDT | Red | 6 A @ 120 V AC, 1.1 A @ 120 V DC | 255V DC 690V AC | 1 5/8" | 1/4" | 2 9/16" | 2 | 0000000 | 000000 |
| 2 | 2 Off (Normally Open) | Stays Switched (Maintained) | 4 | DPST-NO | Red | 6 A @ 120 V AC, 1.1 A @ 120 V DC | 255V DC 690V AC | 1 5/8" | 1/4" | 2 9/16" | 2 | 0000000 | 000000 |
| 2 | 2 On (Normally Closed) | Stays Switched (Maintained) | 4 | DPST-NC | Red | 6 A @ 120 V AC, 1.1 A @ 120 V DC | 255V DC 690V AC | 1 5/8" | 1/4" | 2 9/16" | 2 | 0000000 | 000000 |
| For Push-Button Style | Material | For Panel Cutout Dia. | For Panel Cutout Dia. | Each | |
| Mushroom | Plastic | 30 mm | 1 3/16" | 0000000 | 000000 |
Hazardous Location 30 mm Multifunction Panel-Mount Push-Button Switches
Rated NEC Classes I, II, and III, these switches have a housing that keeps fire and sparks in, so they won’t ignite gases, vapors, or dust. To save space on your panel, they can control multiple circuits. Install them in a standard panel cutout.
Add contact blocks (sold separately) to control more circuits or replace the included contact block.


| No. of Circuits Controlled | Switch Starting Position | No. of Buttons | Switch Action | No. of Terminals | Industry Designation | Switching Current @ Voltage | Max. Voltage | Dp. Behind Panel | For Max. No. of Contact Blocks | Choose an Actuator Color | Each | |
Metal Base with Screw Terminals | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 2 Off (Normally Open) | 2 | Stays Switched (Maintained) | 4 | DPST-NO | 10 A @ 120 V AC, 2.5 A @ 125 V DC | 250V DC 600V AC | 4 1/8" | 4 | Green/Red | 0000000 | 0000000 |
| 2 | 1 Off (Normally Open) and 1 On (Normally Closed) | 2 | Springs Back (Momentary) | 4 | DPST-1NO/1NC | 10 A @ 120 V AC, 2.5 A @ 125 V DC | 250V DC 600V AC | 3 3/4" | 4 | 0000000 | 000000 | |
| 2 | 2 On (Normally Closed) | 2 | Stays Switched (Maintained) | 4 | DPST-NC | 10 A @ 120 V AC, 2.5 A @ 125 V DC | 250V DC 600V AC | 4 1/8" | 4 | Green/Red | 0000000 | 000000 |
| 4 | 2 Off (Normally Open) and 2 On (Normally Closed) | 2 | Springs Back (Momentary) | 8 | 4PST-2NO/2NC | 10 A @ 120 V AC, 2.5 A @ 125 V DC | 250V DC 600V AC | 3 3/4" | 4 | 0000000 | 000000 | |



























