


Blue Sea 5051 ST CLB Circuit Breaker Block - 12 Position - 5051
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Blue Sea 5051 ST CLB Circuit Breaker Block - 12 Position - 5051ST CLB Circuit Breaker Block 12 Position Features Quick connect clips allow circuit breakers to snap easily into place Tin plated copper busses and screw terminals Clear insulating cover with square format label recesses, satisfies ABYC USCG insulation requirements Easy to open clip on cover Breakouts allow wire access in two directions Accepts ring terminals Optional push button waterproof boots or dress nuts can be installed over cover
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Your Blue Sea 5051 ST CLB Circuit Breaker Block - 12 Position - 5051 orders ship within 1-2 business days.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.4 ★★★★★
Based on 1535 reviews
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Product Reviews
★★★★★ 5
Easy to install for clean under-desk mounting
Fits my Dell WD19TB dock perfectly. Great for under-desk mounting (just be careful if your desk surface isn't super thick - you may not want to tighten the screws all the way)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 11, 2025
★★★★★ 5
Space Saver
Perfect fit and easy install. Made more space for my desk within minutes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 5, 2025
★★★★★ 4
Overall great
I LOVE IT. omg exactly what I was looking for. Easy to set up. The only issue is you have to bend over/kneel to set it up and in the process I got an upset stomach, which is why deducted one star. So if you have bowel issues like me, you might want to consider that with this product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2026
★★★★★ 5
right size for your dock.
Fit perfectly. Everything is nice and neat.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 14, 2025
★★★★★ 5
Sturdy, worked well
Holds it sturdy
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Reviewed in the United States on December 21, 2025
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