Description
187 – Series Thermal Circuit Breakers – Surface Mount
150 Amp Circuit Breaker
PN:7148
Features:
- Combines switching and circuit protection into a single device
- All components meet SAE J1171 external ignition protection requirements
- Clear, single lever operation
- “Trip Free” design cannot be held “ON” during fault current condition
- Waterproof
- Recessed mounting holes for clean appearance
- Large clearance around terminal studs accept heavy gauge wire lugs
- Robust 5/16 terminals provide high torque connections
- Large lever with vertical/horizontal orientation provides indication of trip status
- Ignition protected – safe for installation aboard gasoline powered boats

Specifications:
- Amperage: 150a
- Box Dimensions: 2″H x 5″W x 8″L WT: 0.55 lbs
- UPC: 632085171483
![Blue Sea 7407 Single Pole Small Case 2 Flat Rocker Circuit Breaker – 40 Amp [7407]](https://www.micrometerx.com/wp-content/uploads/2025/8/1756622725/blue-sea-7407-single-pole-small-case-2-flat-rocker-circuit-breaker-40-amp-7407.webp)
![Blue Sea 7365 C-Series Double Pole Circuit Breaker – 30A [7365]](https://www.micrometerx.com/wp-content/uploads/2025/8/1756622730/blue-sea-7365-c-series-double-pole-circuit-breaker-30a-7365.webp)
![Blue Sea 7408 Single Pole Small Case 2 Flat Rocker Circuit Breaker – 50 Amp [7408]](https://www.micrometerx.com/wp-content/uploads/2025/8/1756622725/blue-sea-7408-single-pole-small-case-2-flat-rocker-circuit-breaker-50-amp-7408.webp)
![Blue Sea 7404 Single Pole Small Case 2 Flat Rocker Circuit Breaker – 20 Amp [7404]](https://www.micrometerx.com/wp-content/uploads/2025/8/1756622725/blue-sea-7404-single-pole-small-case-2-flat-rocker-circuit-breaker-20-amp-7404.webp)
![Blue Sea 7136 187 – Series Thermal Circuit Breaker – 30Amp [7136]](https://www.micrometerx.com/wp-content/uploads/2025/8/1756622735/blue-sea-7136-187-series-thermal-circuit-breaker-30amp-7136.webp)