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Ultimate Blue Sea 7138 187 - Series Thermal Circuit Breaker - 40amp [7138] Limited Time 95% Off [riDgzjeo]

$26.99 $86.99 -69%

Blue Sea 7138 187 Series Thermal Circuit Breaker - 40Amp The Blue Sea 7138 187 Series Thermal Circuit Breaker is a versatile and reliable solution for your circuit protection needs. Designed with a focus on both switching and protection, this 40Amp c

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Blue Sea 7138 187 Series Thermal Circuit Breaker - 40Amp

The Blue Sea 7138 187 Series Thermal Circuit Breaker is a versatile and reliable solution for your circuit protection needs. Designed with a focus on both switching and protection, this 40Amp circuit breaker combines functionality and durability into a single device. Its innovative features make it an essential component for any electrical system, ensuring safety and efficiency.

Key Product Features

The 187 Series Thermal Circuit Breaker stands out with its comprehensive list of features. It meets the stringent SAE J1171 external ignition protection requirements, ensuring safety in sensitive environments. The clear, single lever operation simplifies maintenance and troubleshooting, while the "Trip Free" design prevents accidental activation during fault currents. This waterproof circuit breaker also boasts recessed mounting holes for a clean appearance, large clearance around terminal studs for heavy gauge wire lugs, and robust 5/16 terminals for high torque connections. The large lever with vertical/horizontal orientation provides clear indication of the trip status, making it easy to monitor the system's health.

Practical Applications and Benefits

The Blue Sea 187 Series Thermal Circuit Breaker is ideal for a wide range of applications, including marine, automotive, and industrial settings. Its ignition-protected design makes it safe for installation aboard gasoline-powered boats, adding an extra layer of safety. With a voltage rating of up to 48 Volts DC and interrupt ratings of up to 5,000 Amperes at 12 Volts DC, this circuit breaker can handle even the most demanding electrical systems. The wide operating temperature range of -25°C to +82°C ensures reliable performance in various conditions. By choosing this high-quality circuit breaker, you not only protect your electrical investments but also enhance the safety and functionality of your system.

What Our Customers Say

January 2, 2026

Absolutely no complaints!

I'm happy with the item. It's solid.

- Shari X..

January 2, 2026

Absolutely no complaints!

So very, very happy with my purchase.

- Ellen I..

January 2, 2026

Absolutely no complaints!

A really well-made, extremely solid product.

- Nina U..

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