EDSX, EDS and EFD Explosionproof Snap Switches

Certifications and compliances

EDS snap switches:

• Class I, Divisions 1 & 2, Groups B*, C, D
• Class I, Zones 1 & 2, IIA, IIB + H₂*
• Class II, Division 1, Groups E, F, G
• Class III
• UL standards: UL1203, UL121201, UL508
• CSA standards: C22.2 Nos. 14, 25, 213-17
• NEMA 3
  
• Operating temperature range: -25°C to +40°C

EDSX snap switches:

• Class I, Division 2, Groups B, C, D
• Class I, Zone 2, IIA, IIB + H₂
• Class II, Division 1, Groups E, F, G
• Class III
• UL standards: UL1203, UL121201, UL508
• CSA standards: C22.2 Nos. 14, 25, 213-17
• NEMA 4X
  
• Operating temperature range: -40°C to +55°C

EFD snap switches:

• Class I, Divisions 1 & 2, Groups C, D
• Class II, Division 1, Groups E, F, G
• Class II, Division 2, Groups F, G
• Class III
• UL standard: UL1203
• CSA standard: C22.2 No. 30
• NEMA/EEMAC 3, 7BCD, 9EFG
  

*For single-gang enclosures only.  Manual motor starters, circuit breakers and EDS(C)-23 snap switches are not rated for Class I, Divisions 1 & 2, Group B.

• Small and compact in design
• Switches are enclosed in a unique sealing well with double flanges, which mate with the cover and the body (EDS/EDSX only)
• Small, compact enclosures have accurately ground wide flanges on body, cover and sealing well for flametight joints (EDS/EDSX only)
• Wiring pigtails are factory sealed from under the sealing well (EDS/EDSX only)
• Mounting lugs and taper tapped hubs with integral bushings
• Large captive screws for fastening cover to body (EDSX only)
• Lockout hole for padlock having 1/4” hasp is provided
• Threaded type shafts and bushings are used to ensure flametightness

• Bodies and covers – Feraloy iron alloy or copper-free aluminum
• Shafts and shaft bushings – stainless steel
• Sealing enclosures – copper-free aluminum (EDS/EDSX only)
• Handle – aluminum (EFD only)