ID
1001759
$ 152.60
1-2 weeks delivery time
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The Blue Sea 7144 187-Series Circuit Breaker is a 100A surface-mount Type III breaker for 48V DC systems, combining switching and circuit protection in one waterproof device. It uses a thermally responsive bi-metal blade and a trip-free manual reset lever with vertical or horizontal status indication. Equipped with 5/16″-18 (M8) stud terminals for heavy cable lugs and high-torque connections. Interrupt capacity up to 5000A @ 14V DC. Operating range: -40°C to +85°C. Weight: 0.58 lb (0.26 kg).
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Blue Sea 7144 – 187-Series Surface Mount Circuit Breaker 100A, 48V DC, Type III Manual Reset
The Blue Sea 7144 is a 187-Series surface mount circuit breaker rated at 100A for systems up to 48V DC. It combines switching and circuit protection in a single waterproof unit designed for marine and vehicle electrical installations.
This breaker features 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 provides clear trip status indication and supports both vertical and horizontal orientation. The housing includes recessed mounting holes and large terminal clearance for heavy gauge wire lugs.
Key Features
- 187-Series circuit breaker, surface mount
- 100A 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 7144 Series 187-Series Amperage 100A 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 (M8) 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
Note: Do not use as a switch where high inrush currents are expected.
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