The Blue Sea 7139 50A 187 Series Surface Mount Thermal Circuit Breaker from Nomadic Supply Company provides heavy-duty circuit protection for 25 to 200 Amp loads when switching and circuit protection are both required.
Switching and circuit protection in a single device. Single lever operation. Waterproof, with recessed mounting holes for a clean appearance. Self-trimming case eliminates the need for mounting panels or trim bezels and permits easy installation with a standard sized hole saw. Large clearance around 5/16″ terminal studs accept heavy gauge wire lugs and allows high-torque connections. Ignition-protected safe for installation aboard gasoline-powered boats. Interrupt rating: 5000A at 12V DC.
Blue Sea 7139 50A 187 Series Surface Mount Thermal Circuit Breaker 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
- * Do not use as a switch where high inrush currents are expected.
Blue Sea 7139 50A 187 Series Surface Mount Thermal Circuit Breaker Specifications:
Amperage | 50A |
Maximum Voltage | 48V DC |
Mounting | Surface Mount |
Circuit Breaker Type | Thermally responsive Bi-metal blade |
Terminal Stud Torque | 75 in-lb (8.47 Nm) |
Interrupt Capacity | 5000A @ 14VDC 3000A @ 28VDC 1500A @ 48VDC |
Minimum Operating Temperature | -40° C |
Maximum Operating Temperature | 85° C |
Case Material | Thermoset Polyester |
Circuit Breaker Class | Type III – switchable/manual reset – trip free |
Mounting Hole | Accept #10 (M5) Screw |
Terminal Stud Size | 5/16″ – 18 |
Weight | 0.58lb (0.26 kg) |
Weight | 0.58lb (0.26 kg) |