Crouse-Hinds EFD Explosionproof Snap Switch — Model EFD3591
The Crouse-Hinds EFD3591 is a 30-amp explosionproof snap switch rated for 120/277 Vac, designed for power switching in hazardous classified locations. Constructed from Feraloy iron alloy for rugged performance in demanding industrial environments.
Key Specifications
- Current Rating: 30A
- Voltage: 120/277 Vac
- Poles: Single-pole
- Switch Type: Snap switch, with switch mechanism
- Material: Feraloy Iron Alloy
- Gang: Single-gang, dead end
- Conduit Entry: 1″
- Standards: UL 1203, CSA C22.2
Construction Details
Feraloy iron alloy provides exceptional strength and corrosion resistance in wet or chemically active environments. The explosionproof design ensures that any internal arc or explosion is contained, preventing ignition of the surrounding hazardous atmosphere. UL 1203 and CSA C22.2 listings confirm compliance with North American hazardous location standards.
Applications
- Hazardous classified area power control (Class I, Division 1/2)
- Industrial facilities and factories
- Oil, gas, and petrochemical plants
- Power distribution and control in hazardous environments
Manufactured by Crouse-Hinds (Eaton). UPC: 78227427100. Model: EFD3591.

