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Blue Sea Systems  |  SKU: BSS-7144

Blue Sea Systems 187-Series Surface Mount Circuit Breaker

Regular price $10730 USD
Amps
Ships By Sun, June 14 Free Canada Shipping over $120

Why Shop With Us

✔ Locally owned in Nanaimo, BC
✔ Trusted by boaters and anglers since 1986
✔ Knowledgeable staff with real on-the-water experience
✔ Large in-stock selection of marine & fishing gear

We’re here to help you get the right gear the first time.

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We ship across Canada with fast, reliable delivery from our Nanaimo location.

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Need it sooner or have questions? Our team is here to help.

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We stand behind the products we sell and want you to shop with confidence.

✔ Easy returns on eligible items
✔ Manufacturer warranties supported
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The Blue Sea Systems 187-Series Surface Mount Circuit Breaker combines switching and circuit protection into a single compact device, making it ideal for marine, RV, off-grid, and automotive electrical systems. Available in 100A, 120A, and 200A ratings, these ignition-protected circuit breakers provide reliable overcurrent protection while allowing convenient manual switching when servicing electrical circuits.

Designed for demanding marine environments, the 187-Series features a waterproof housing, corrosion-resistant construction, and a trip-free design that cannot be held in the ON position during a fault condition. Large lever operation provides clear visual indication of breaker status, while heavy-duty terminals accept large gauge cable connections for high-current applications.

Perfect for battery banks, inverter circuits, trolling motor systems, charging systems, and high-amperage DC electrical installations.

Features

  • Combines switching and circuit protection in one device
  • Available in 100A, 120A, and 200A ratings
  • Waterproof construction for marine environments
  • Trip-free design for enhanced safety
  • Ignition protected for gasoline-powered boats
  • Surface mount installation
  • Visual indication of breaker status
  • Accepts large gauge battery and power cables
  • Meets SAE J1171 ignition protection requirements
  • Ideal for marine, RV, automotive, and off-grid electrical systems

Blue Sea Systems 187-Series Circuit Breaker FAQ

What is the Blue Sea 187-Series Circuit Breaker used for?

The 187-Series protects high-amperage DC electrical circuits from overloads and short circuits while also functioning as a manual reset switch.

What amperage ratings are available?

This product is available in 100A, 120A, and 200A configurations.

Is the 187-Series waterproof?

Yes. The breaker is designed for marine environments and features a waterproof construction to help protect against moisture and corrosion.

Can this breaker be used on boats with gasoline engines?

Yes. The 187-Series is ignition protected and meets SAE J1171 requirements for installation aboard gasoline-powered boats.

Can this breaker be used as a battery disconnect switch?

The 187-Series includes switching capability but is primarily designed for circuit protection. Always follow Blue Sea Systems installation recommendations for your application.