Blue Sea Systems Circuit Breaker 187-Series Surface Mount 50A
Product info
Product info
Couldn't load pickup availability
Blue Sea Systems Circuit Breaker 187-Series Surface Mount 50A
The Blue Sea Systems Circuit Breaker 187-Series Surface Mount 50A 7139 is a versatile and reliable electrical component that seamlessly combines switching and circuit protection into a single device. This product is a game-changer in circuit protection, ensuring your electrical systems stay safe and efficient.
Key Features of the 7139 Blue Sea Systems Circuit Breaker 187-Series Surface Mount 50A:
- Single Lever Operation: Featuring a clear, single lever operation. This circuit breaker simplifies the process of switching and circuit protection, making it user-friendly for both beginners and experts.
- "Trip Free" Design: The "Trip Free" design prevents the circuit breaker from remaining in the "ON" position during a fault current condition, enhancing safety.
- Waterproof Reliability: This circuit breaker is waterproof, making it ideal for marine applications where exposure to water is common.
- Clean Installation: Recessed mounting holes enable a clean and polished appearance when integrated into your electrical setup.
- Heavy-Gauge Wire Compatibility: The breaker offers large clearance around terminal studs that accept heavy gauge wire lugs. This ensures compatibility with a wide range of wiring configurations.
- High Torque Connections: Equipped with robust 5/16 M8 terminals. This circuit breaker provides high torque connections for added reliability and security.
- Trip Status Indication: The large lever can be positioned both vertically and horizontally. This provides a clear indication of the circuit breaker's trip status for quick and easy troubleshooting.
- Ignition Protection: This circuit breaker is ignition protected, making it safe for installation aboard gasoline-powered boats.
- Meets SAE J1171 Standards: Compliant with SAE J1171 external ignition protection requirements. This circuit breaker meets the high safety standards necessary for marine and automotive applications.
Do not use as a switch where high inrush currents are expected.
Its primary role is to protect your circuits while providing efficient, reliable operation. Invest in the Blue Sea Systems Circuit Breaker 187-Series Surface Mount 50A 7139 to ensure the safety and reliability of your electrical systems in marine and automotive environments. With its exceptional features, this circuit breaker is a dependable choice for your circuit protection needs.
Delivery & Returns
Delivery & Returns
🚚 Fast Dispatch: Order by 2pm and we’ll aim to ship your order the same day, Monday to Friday.
🇬🇧 UK Delivery: DPD, Parcelforce, or Royal Mail
📦 30-Day Returns: Unused items in original packaging
💬 Need Help? info@nomadicleisure.co.uk
All payments are processed securely using trusted providers. Your card details are never stored or shared - we use encrypted systems to keep every transaction safe.
About Nomadic Leisure
At Nomadic Leisure, we’re more than a retailer — we’re a family-run UK business built on a shared love of travel and adventure. Whether you’re converting a campervan, exploring off-grid living, or setting sail, we provide the gear and expertise to make every journey better.
Our products are tested, trusted, and chosen for quality, reliability, and value — helping you travel with confidence wherever the road (or water) takes you.
- Family-run UK business with real-world experience
- Handpicked products from trusted leisure brands
- Knowledgeable, UK-based customer support

