EXB and EIB Explosion-Proof Circuit Breakers

The EIB Series Compact Circuit Breaker Assemblies are an innovative line of explosionproof motor control now being offered by Eaton’s Crouse-Hinds. The EIB series utilizes the EJB style D enclosure with its bolted construction, NEMA 4 environmental protection and Class I, Division 1, Group B, C and D hazardous area ratings. The EIB series is a cost-effective solution for circuit breaker protection and utilizes the Cutler-Hammer Type EG circuit breakers. Circuit breaker protection is available from 15 to 1200 amps.

  • Small compact footprint requires less mounting space and reduces enclosure cost
  • Rotary handle operator mounted on cover assembly provides clear indication of on, off and trip positions
  • No internal fork operator, eliminating potential damage to breaker toggle
  • Trip position easily identified from a distance
  • Neoprene cover gasket provides UL Type 4 (hosetight) environmental rating
  • Detachable mounting feet offer flexible mounting alternatives – no need to replace the entire enclosure if a mounting foot is broken
  • Stainless steel hinges provide extreme durability and easy access to inside of enclosure for wiring and maintenance
  • (2) 11 /2” NPT conduit entries, one on top and one on bottom for easy top or bottom feed of conductors. For field addition of breather and/or drain; holes come plugged
  • Provides lockout/tagout capability which complies with OSHA requirements, allowing for locking in the ON or OFF position for standard maintenance checks bending requirements for max gauge wire, allowing for easy and safe installation,
    and reliable operation of product

Auxiliary Contact (single block) … S784
Auxiliary Contacts (two blocks) … S785
Breather and Drain …………………. S756V
Epoxy Powder Coat Finish (external
only) ………………………………………. S752
Epoxy Powder Coat Finish
(internal and external) ……………… S753
External Ground Lug ……………….. S214
Red on Pilot light …………………… J1
Green off Pilot light ………………… J2
Custom Legend Plate (Specify
Legend Markings) …………………. NP
Substitute MCP for Breaker ……… SMCP
Switching Neutral 4th pole ………..S4P
Switch for Breaker …………………….SMCS
Shunt Trip (Specify Voltage Rating)..S87
Bell Alarm ………………………………. S88

  • Class I, Divisions 1 & 2, Groups B, C & D
  • Class I, Zones 1 & 2 (ONLY EIB)
  • Class II, Division 1, Groups E, F and G
  • Class III
  • Enclosure type 3, 3R, 4, 7BCD, 9EFG
  • NEMA 3, 3R, 4, 7BCD, 9EFG
  • UL Standard 1203
  • cUL to CSA C22.2 No. 30
  • Body & Cover – Copper-free aluminum
  • Gasket – Neoprene
  • Cover Bolts – Steel
  • Hinges – Stainless Steel
  • Mounting Plate Sheet – Aluminum
  • Copper-free Aluminum – Natural
  • Steel – Electro-galvanized
  • 600V maximum
  • 3 poles
  • Ampere Interrupting Capacity:
    – All EIB/EXB enclosures are rated to 10k AIC
    – Eaton Type EG Breaker AIC ratings:
    – 240V: 35k AIC
    – 480V: 25k AIC
    – 600V: 18k AIC