Eaton EIBB3100 S146 Explosionproof Circuit Breaker - EG frame
Part Number: EIBB3100 S146
Quick Summary
Explosionproof circuit breakers like the Eaton EIBB3100 S146 provide safe, reliable overcurrent protection for hazardous-location electrical systems. In harsh environments, engineers struggle to balance rugged protection with easy maintenance and fast installation. This unit carries NEC/CEC standards and NEMA ratings, along with hazardous-location classifications for Class I/II/III and Zone 1/2 coverage, supporting safe operation and regulatory compliance. Built to integrate with EG frame enclosures, it supports scalable control panels and minimizes downtime, delivering dependable performance and long-term cost savings for process facilities and power systems.
Product Information
Extended Description
EIBB3100 S146 Eaton: Eaton Crouse-Hinds series EIB circuit breaker, 100A, EG frame type, Bolted/ground joint cover construction, Copper-free aluminum, Cutler-Hammer breaker, Three-pole, Insulated neutral lug, 600 Vac
Product Name
Eaton Crouse-Hinds series EIB circuit breaker
Catalog Number
EIBB3100 S146
UPC
662276305892
Product Length/Depth
12.53 in
Product Height
16.53 in
Product Width
9.75 in
Product Weight
58 lb
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class II, Division 1 Class I, Division 2 Class I, Division 1 Class III Class I, Zone 1 Class I, Zone 2
NEMA Rating
3 3R 4 7 9
Enclosure
With circuit breaker
Amperage Rating
100 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
Special features
Insulated neutral lug
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 - EIBB3100 S146
Feature: Explosionproof construction and EG frame design. Business Impact: Delivers certified protection in hazardous locations, reducing fire and arc-flash risk while meeting NEC/CEC requirements. Application: Suitable for control panels and distribution in chemical plants, oil rigs, and other demanding facilities where safety and compliance drive design choices. Feature: 100 A amperage rating with a 600 Vac, three-pole configuration. Business Impact: Provides robust main protection with a common trip across all poles, simplifying wiring and improving coordination with protective devices. Application: Ideal for motor feeders and switchgear in heavy industrial environments where clear trip indication and reliable protection are critical. Feature: Bolted/ground joint enclosure cover construction and copper-free aluminum housing. Business Impact: Enhances enclosure integrity against contaminants and reduces corrosion in harsh climates, lowering maintenance costs and downtime. Application: Outdoor or chemically aggressive facilities, including refineries and coastal plants, where enclosure durability matters. Feature: Insulated neutral lug and three-pole design. Business Impact: Improves fault isolation and reduces ground fault risk, enabling safer panel layouts and easier field wiring. Application: Control cabinets and MCCs where precise neutral handling and robust connections are required. Feature: Compatibility with EIB series enclosures and certification coverage. Business Impact: Streamlines installation, accelerates retrofit projects, and ensures compliance with Class I/II/III, Zone 1/2 ratings, and NEMA combinations. Application: OEM panel builds and upgrade programs in hazardous locations.
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FAQs
Eaton's EIBB3100 S146 should be installed in approved explosion-protected enclosures (EG frame) with proper grounding and secure bolted/ground joint covers. Verify compatibility with Crouse-Hinds EIB enclosures, use insulated neutral lug connections, and follow NEC/CEC guidelines for Class I/II/III and Zone 1/2 installations to maintain safe operation and regulatory compliance.
Key specs include a 100 A amperage rating, 600 Vac voltage rating, and a three-pole configuration. It uses an EG frame, comes with a bolted/ground joint enclosure, and features a copper-free aluminum housing with an insulated neutral lug to support safe, reliable protection in hazardous locations.
Yes. The unit is specified for NEC/CEC compliance and offers hazardous-location ratings compatible with Class I/II/III locations and Zone 1/2 coverage, fulfilling industry-standard safety and regulatory requirements for chemical plants, oil & gas facilities, and similar environments.
Common applications include control panels, switchgear, and motor feeders in hazardous-location facilities such as chemical processing plants, refineries, and offshore installations where explosion protection, robust isolation, and reliable UL/NEC-compliant performance are essential.
Regular visual inspections, secure mounting, and periodic fault-tripping checks help ensure reliability. The copper-free aluminum enclosure offers corrosion resistance for longer service life in harsh environments, reducing replacement frequency and lowering total cost of ownership over the asset lifecycle.