Blue Sea Systems 187-Series Panel-Mounted Circuit Breaker - 135A
Model: 7047-BSS
- Combines switching and circuit protection in one handy device*
- Easy single-lever operation
- 'Trip Free' design ensures it won't stay 'ON' during a fault
- Waterproof for reliable use
- Recessed mounting holes for a sleek look
- Large terminal stud clearance fits heavy wire lugs
- Robust 5/16 M8 terminals for strong connections
- Big lever with vertical/horizontal orientation shows trip status
- Ignition protected, safe for gasoline boats
* Don't use as a switch for high inrush currents.
SpecificationsAmperage | 135A |
Maximum Voltage | 48vDC |
Mounting | Panel 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 the Blue Sea 187-Series 135 Amp Panel-Mounted Circuit Breaker is easy. Just operate the single lever to switch the circuit on or off. You can tell if it has tripped by looking at the lever's position. Remember, don't use it as a switch for high inrush currents. For mounting, use #10 (M5) screws in the recessed holes. Keep it in an environment between -40°C and 85°C. Since it's waterproof, it can be used in damp conditions. To maintain it, check the connections regularly to make sure they're tight. If it trips, reset it manually after fixing the problem. This breaker is ignition protected, so it's safe for use on gasoline-powered boats.