Eaton EIBB3070 Explosionproof Circuit Breaker - Hazardous
Part Number: EIBB3070
Quick Summary
The Eaton Crouse-Hinds EIB circuit breaker is a robust explosionproof device designed for hazardous locations and demanding industrial environments. Engineers seek reliable protection that minimizes downtime and simplifies compliance, especially where space and maintenance budgets are tight. This model meets NEC/CEC requirements and carries multiple hazardous-location ratings, including Class I, Division 1/2 and Zone 1/2, along with suitable NEMA configurations for rugged service. The 70 A, 600 Vac, three-pole EG-frame breaker incorporates a bolted/ground joint enclosure, copper-free aluminum construction, and a complete package that fits with standard EIB enclosures. By combining rugged construction with certified performance, it reduces spare-part diversity and speeds field servicing, delivering tangible lifecycle savings for critical plant assets.
Product Information
Extended Description
EIBB3070 Eaton: Eaton Crouse-Hinds series EIB circuit breaker, 70A, EG frame type, Bolted/ground joint cover construction, Copper-free aluminum, Cutler-Hammer breaker, Three-pole, 600 Vac
Product Name
Eaton Crouse-Hinds series EIB circuit breaker
Catalog Number
EIBB3070
UPC
662276067745
Product Length/Depth
12.53 in
Product Height
16.53 in
Product Width
9.75 in
Product Weight
60 lb
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 1 Class I, Zone 1 Class I, Division 2 Class I, Zone 2 Class II, Division 1 Class III
NEMA Rating
3 3R 4 7 9
Enclosure
With circuit breaker
Amperage Rating
70 A
Voltage rating
600 Vac
Number of poles
Three-pole
Circuit breaker frame type
EG
Enclosure cover construction
Bolted/ground joint
Enclosure material
Copper-free aluminum
Manufacturer
Cutler-Hammer
SP3D Design Package - EIB Explosionproof Compact Circuit Breakers
EIB Series Explosionproof Compact Circuit Breakers flyer
EIB Series Explosionproof Compact Circuit Breakers catalog page
EIB Explosionproof Compact Circuit Breakers Canadian certification
EIB Explosionproof Compact Circuit Breakers Canadian certification
IF 1501 - EIB Series Circuit Breakers and Enclosures
Eaton Specification Sheet - EIBB3070
Feature to Benefit to Application: The EIBB3070 delivers 70 A at 600 Vac in a three-pole EG-frame design, enabling reliable power distribution for motor drives and process lines in hazardous environments, reducing risk of nuisance trips and improving uptime in chemical plants and refineries. The bolted/ground joint enclosure construction and copper-free aluminum material provide robust corrosion resistance and sealing integrity, lowering maintenance costs and extending service intervals in dusty or humid facilities. Certifications and ratings—NEC/CEC compliance with Class I Division 1/2, Zone 1/Zone 2, and NEMA ratings 3, 3R, 4, 7, 9—translate directly into simpler procurement and field acceptance, ensuring regulator-aligned installations across global sites. Integrated enclosure with circuit breaker reduces assembly time on the shop floor and speeds panel builds for offshore platforms and remote facilities. The 70 A, 600 Vac rating supports balanced, safe switching of multi-phase loads, improving fault response and protecting critical equipment across industries that demand reliability and safety.
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FAQs
The EIBB3070 is designed for Class I locations with Division 1/2 and Zone 1/2 ratings, plus compatible Class II/III environments. Its 70 A, 600 Vac three-pole configuration supports motor control and protective switching in hazardous areas, making it ideal for chemical plants, refineries, and offshore facilities where certified protection is required.
This model complies with NEC/CEC standards for hazardous locations and carries NEMA ratings including 3, 3R, 4, 7, and 9. The combination of Class I Division 1/2 and Zone 1/2 ratings ensures regulatory alignment for global projects, while the integrated enclosure aids in site acceptance testing.
Key specs include a 70 A amperage rating, 600 Vac voltage rating, and a three-pole configuration within an EG frame. Enclosure construction is bolted/ground joint and made from copper-free aluminum, designed for rugged industrial service in hazardous locations.
With the enclosure pre-integrated with the circuit breaker, and a bolted/ground joint design, installation is faster and less prone to leaks or improper sealing. The copper-free aluminum enclosure reduces corrosion risk, while NEC/CEC compliance streamlines procurement and reduces rework during audits.
Official resources include IF 1501 installation sheets, SP3D design packages for EIB explosionproof breakers, and the EIB series catalogs and flyers. Accessing the Eaton specification sheet for EIBB3070 provides detailed wiring, enclosure dimensions, and mounting guidance.