Blue Sea Systems 187-Series 70A Surface Mount Circuit Breaker
Model: 7141-BSS
- Integrates switching and circuit protection in one device. Ideal for efficient electrical systems!
- Features a clear single-lever operation for easy use.
- The 'Trip Free' design ensures safety during fault current situations.
- Waterproof construction makes it suitable for harsh environments.
- Recessed mounting holes give it a clean and sleek look.
- Large clearance around terminal studs can handle heavy gauge wire lugs.
- Robust 5/16 M8 terminals offer high-torque connections.
- The large lever with vertical/horizontal orientation clearly shows the trip status.
- Ignition protected, safe for installation on gasoline-powered boats.
- Meets SAE J1171 external ignition protection requirements.
* Avoid using it as a switch in high inrush current scenarios.
Specifications| Amperage | 70A |
| Maximum Voltage | 48vDC |
| Mounting | Surface Mount |
| Circuit Breaker Type | Thermally responsive Bi-metal blade |
| Terminal Stud Torque | 75 in-lb (8.47 Nm) |
| Interrupt Capacity | 5000A @ 12V
3000A @ 24V
1500A @ 42V |
| 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 |
Using this Blue Sea circuit breaker is easy. First, find a suitable surface to mount it on using the recessed holes and #10 (M5) screws. Connect heavy gauge wire lugs to the terminal studs with a torque of 75 in - lb (8.47 Nm). The single - lever operation makes it simple to turn the circuit on and off. When a fault current occurs, the 'Trip Free' design will automatically trip, and you can reset it manually. Remember, don't use it as a switch where high inrush currents are expected. This breaker is waterproof, but try to keep it away from excessive moisture. It's suitable for use in temperatures between -40°C and 85°C. For maintenance, check the terminal connections periodically to ensure they are tight and there is no sign of overheating. Also, keep the breaker clean from dust and debris to maintain its performance.
