Overview
The BR1224B100R is an Eaton Cutler-Hammer main breaker loadcenter designed for reliable electrical distribution in industrial, commercial, and utility environments. This BR style 1-inch loadcenter features a main circuit breaker with no feed-thru lugs, 100A rating, single-phase configuration, 24-pole capacity, 12 spaces accommodating 24 circuits, and 120/240V operation with #4-1/0 AWG Cu/Al wire rated at 60°C or 75°C in a NEMA 3R enclosure.
Key Features
- Main Circuit Breaker: 100A single-phase rating with 10 kAIC interrupting capacity
- Circuit Capacity: 24-pole configuration with 12 spaces for Type BR 1-inch breakers
- NEMA 3R Enclosure: Outdoor-rated, rainproof aluminum housing with metallic finish and cover included
- Voltage Rating: 120/240V single-phase, 4-wire configuration
- Wire Compatibility: Accepts #4 to 1/0 AWG copper or aluminum conductors at 60°C or 75°C ambient
Technical Specifications
The BR1224B100R meets UL standards and is engineered for demanding electrical service applications. Dimensions are 14.31 inches width × 5.19 inches depth × 21 inches height; housing is metallic with aluminum bus material; maximum circuit capacity is 24 circuits with 12 one-inch breaker spaces.
Typical Applications
- Commercial building electrical service panels and distribution centers
- Industrial facility branch distribution and motor control centers
- Outdoor utility and meter enclosure applications requiring NEMA 3R rainproof protection
- Retrofit and modernization projects where Type BR compatibility is required
- Agricultural and remote facility electrical service equipment
Compatibility & Replacements
Compatible With
- Type BR circuit breakers (1-inch wide, all ratings and styles)
- Single-phase utility service feeds at 120/240V
- Copper or aluminum feeder conductors #4 AWG through 1/0 AWG
- Standard electrical NEC-compliant installation practices
- Service equipment applications per NEC requirements
Replaces / Drop-In Replacement For
- Eaton/Cutler-Hammer BR1224B100 (earlier revision)
- Other 100A, 24-circuit Type BR loadcenters with equivalent NEMA 3R rating
Works With
- Type BR breaker products (plug-in configuration)
- Standard electrical service entrance applications
- NEMA 3R outdoor distribution systems
