Ignitions and Electrical› Wiring Components

BLUE SEA

CIRCUIT BREAKER 187 SFCMT 120A

$125.46

SKU: B03C 7146-BSS

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INSTALL DIFFICULTY
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Easy — 1–2 hours

Description

The Blue Sea Systems 7146 is a 120 Amp, 187-Series thermal circuit breaker designed for surface mounting. It combines switching and circuit protection into a single device, meeting SAE J1171 external ignition protection requirements. The breaker features a trip-free design and a clear, single lever operation for easy use and status indication.

Constructed with a thermoset polyester case, this circuit breaker has a maximum DC voltage rating of 48 Volts. Its interrupt ratings are 5,000 Amperes at 12 Volts DC, 3,000 Amperes at 24 Volts DC, and 1,500 Amperes at 42 Volts DC. The operating temperature range is from -25°C to +82°C. It includes robust 5/16" terminals for high-torque connections and recessed mounting holes for a clean appearance.

Fitment

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Specifications

BrandBLUE SEA
Part NumberB03C 7146-BSS

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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