
Notice regarding statutory warranty

BS 7038 - Reliable protection with the 187 Series circuit breaker (40A)
The thermal Blue Sea BS 7038 circuit breaker from the 187 Series offers a combined switch and fuse solution. Designed for panel mounting, it is ideal for use as a main fuse. It reliably protects onboard electrical systems, inverters, or bow thrusters against overloads and short circuits.
Explosion protection and uncompromising marine quality
This circuit breaker meets the highest explosion protection requirements (SAE J1171 / ISO 8846) and can be installed without hesitation in gasoline-powered boats. It is waterproof to IP66 and optimized for demanding marine applications.
Key benefits at a glance:
- Combined function: Serves as a robust on/off switch as well as overcurrent protection.
- Safe operation: The large switching lever allows for easy resetting even with gloves.
- Absolutely explosion-proof: Ideal for the engine room.
- Weatherproof: IP66 protected against powerful water jets.
Technical data (Blue Sea BS 7038):
| Property | Specification |
| Rated current | 40 Amperes |
| Voltage range | Max. 48V DC |
| Mounting type | Panel mount |
| Interrupting capacity | 5000A @ 12V DC / 3000A @ 24V DC / 1500A @ 42V DC |
| Explosion protection | SAE J1171 / ABYC E-11 |
| Protection rating | IP66 |