Blue Sea 5051 12-Position ST CLB Breaker Block

Description

The Blue Sea 5051 ST CLB Circuit Breaker Block provides twelve compact positions for resettable DC circuit protection. It uses quick-connect clips that allow compatible CLB breakers to snap into place, making it easier to build a dense protected distribution system without individually mounting each breaker.

Tin-plated copper buses and screw terminals provide conductive, corrosion-resistant connections. The block uses independent sources, allowing groups of circuits to be supplied separately rather than forcing all twelve positions to share one common feed. Each circuit supports up to 32A, while jumped circuit groups can support higher combined current within the product’s published limits.

A clear insulating cover satisfies applicable ABYC and USCG insulation requirements and includes square-format label recesses for circuit identification. Breakouts allow wiring to enter from two directions, and optional waterproof boots or dress nuts can be fitted over the cover. For compact marine DC systems that need numerous resettable breaker positions with flexible feed arrangements, the 5051 provides a clean modular distribution platform. Have a look at the rest of our bus bars & power distribution.