Overview
The Eaton BR612L125SP is a main lug loadcenter in the BR series, designed to distribute power to branch circuits in residential and light commercial electrical systems. The main lug is used as a sub-panel to add circuits to existing service. This unit features 125A capacity, single-phase operation, 12-pole design, 12 circuits, 6 spaces, and 120/240V supply with #14–#1 AWG Cu/Al conductor capacity at 60°C or 75°C.
Key Features
- 125 Amp rating — handles moderate to heavy residential and light commercial loads
- 6 spaces / 12 circuits — allows flexibility in branch breaker configuration with double-pole breaker capacity
- Main lug design — enables top or bottom feed wiring for simplified installation and retrofit applications
- 1-inch BR breaker compatibility — works with standard Eaton/Cutler-Hammer plug-on type BR breakers
- NEMA 1 enclosure — metal, aluminum construction rated for indoor surface-mount installation
- 10 kAIC interrupt rating — certified for single-phase three-wire 120/240V service
Technical Specifications
- Voltage: 120/240V AC, single-phase, three-wire
- Main Amperage: 125A
- Spaces: 6
- Circuits: 12 (full capacity when using double-pole breakers)
- Breaker Type: Eaton BR 1-inch plug-on
- Conductor Size: #14–#1 AWG copper or aluminum
- Enclosure: NEMA 1, metal, light gray finish
- Interrupt Rating: 10 kAIC
- Mounting: Surface-mount, wall-mounted
- Cover: Not included
- Box Size: 7 (1-inch breaker depth)
Typical Applications
Load centers are enclosures designed to house branch circuit breakers and wiring required to distribute power to individual circuits, and are used as sub-panels to add circuits to existing service. The BR612L125SP is commonly deployed in:
- Residential sub-panels and branch distribution
- Light commercial electrical systems (offices, retail, small facilities)
- Equipment control panels and OEM electrical assemblies
- Retrofit and panel upgrades where main service already has overcurrent protection
Compatibility & Replacements
Compatible With
- Eaton Cutler-Hammer Type BR 1-inch plug-on circuit breakers
- Type BR tandem and twin breakers (where space and current ratings permit)
- Main lug termination suitable for feeder cables (#14–#1 AWG)
- NEMA 1 indoor installation environments
Replaces / Drop-In Replacement For
- BR612L125FP (similar 6-space, 12-circuit layout, earlier design variant)
- BR612L125FGP (similar spec with older connector style)
- Other Eaton BR series 125A, 6-space, 12-circuit main lug models
Works With
- Eaton electrical distribution hardware and accessories
- Standard #14–#1 AWG copper and aluminum field wiring
- Feeder cables rated for 125A service (typically 2/0 or larger)
- NEMA 1 indoor enclosure mounting systems


















