ID
1002162
$ 152.60
1-2 weeks delivery time
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The Blue Sea 7148 187-Series Circuit Breaker is a 150A surface-mount Type III breaker for 48V DC systems, combining switching and circuit protection in one waterproof unit. It features a thermally responsive bi-metal blade and a trip-free manual reset lever with vertical or horizontal trip indication. Built with 5/16″-18 stud terminals for heavy gauge lugs and high-torque connections. Interrupt capacity up to 5000A @ 14V DC. Operating temperature range: −40°C to +85°C. Weight: 0.58 lb (0.26 kg).
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Blue Sea 7148 – 187-Series Surface Mount Circuit Breaker 150A, 48V DC, Type III Manual Reset
The Blue Sea 7148 is a 187-Series surface mount circuit breaker rated at 150A for systems up to 48V DC. It combines switching and circuit protection in a single waterproof device suitable for marine and vehicle electrical installations.
This breaker uses a thermally responsive bi-metal blade and a trip-free manual reset mechanism that cannot be held ON during a fault condition. A large lever supports vertical or horizontal orientation and provides clear visual trip status. The housing includes recessed mounting holes and large terminal clearance to accept heavy gauge wire lugs.
Key Features
- 187-Series circuit breaker, surface mount
- 150A rating, up to 48V DC
- Combined switching and circuit protection
- Type III – switchable/manual reset – trip free
- Waterproof construction
- Ignition protected for gasoline engine compartments
- Clear single lever operation with trip indication
- Recessed mounting holes for clean installation
- Large terminal clearance for heavy gauge wire lugs
- Robust 5/16″ (M8) stud terminals for high-torque connections
Technical Specifications
Product Number 7148 Series 187-Series Amperage 150A Maximum Voltage 48V DC Mounting Surface Mount Breaker Type Thermally responsive bi-metal blade Breaker Class Type III – switchable/manual reset – trip free Interrupt Capacity 5000A @ 14VDC / 3000A @ 28VDC / 1500A @ 48VDC Terminal Stud Size 5/16″ - 18 Terminal Stud Torque 75 in-lb (8.47 Nm) Mounting Hole Accept #10 (M5) screw Operating Temperature -40°C to +85°C Case Material Thermoset Polyester Weight 0.58 lb (0.26 kg)
Standards & Protection
- CE Marked
- Ignition Protected
- IP66
- SAE J1171
* Do not use as a switch where high inrush currents are expected.
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