Cutler-Hammer 3BRSF150 Subfeed Lug Block Circuit Breaker is a 150 A, three-pole BR-series device built to provide subfeed lug connections in compatible panels. It delivers 120/240 V and serves as the overcurrent protection for downstream circuits fed from a main breaker. The model 3BRSF150 is designed for BR-frame installations where a subfeed lug block is required, aligning with Cutler-Hammer’s BR-series lineup.
