Blue Sea 5051 12-Position ST CLB Breaker Block

The Blue Sea Systems 5051 ST CLB Circuit Breaker Block has twelve quick-connect positions with independent sources, supporting up to 32A per circuit.

Independent sources is what separates this from the 5054, which uses a common feed across all twelve positions. Here groups of circuits can be supplied separately, so a bank of always-live circuits and a bank of switched ones can share one block rather than needing two.

That flexibility is worth having on a boat where some loads run off the battery directly and others come off a switched feed. Jumped circuit groups can support higher combined current within the published limits when circuits do need to share.

Quick-connect clips let compatible CLB breakers snap into place rather than each being individually mounted and wired. Tin-plated copper buses and screw terminals handle the connections, and a clear insulating cover with label recesses meets ABYC and USCG requirements. Breakouts allow wiring from two directions. Explore more bus bars and power distribution.

• Independent sources, unlike the common-feed 5054
• Always-live and switched circuits share one block
• CLB breakers snap in rather than being wired singly
• 32A per circuit, twelve positions