Blue Sea Systems Circuit Breaker 187-Series Surface Mount 40A
Product info
Product info
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Circuit Breaker 187-Series Surface Mount 40A
When it comes to electrical control and protection, the Blue Sea Systems Circuit Breaker 187-Series Surface Mount 40A stands out as a top-tier choice. This product combines switching and circuit protection into a single device, offering unparalleled convenience and safety for your electrical systems.
Key Features of the Circuit Breaker 187-Series Surface Mount 40A:
- All-in-One Solution: The 187-Series Circuit Breaker is not just a circuit protector; it's also a reliable switch. Combining these functions simplifies your electrical setup and enhances your control.
- Effortless Operation: Its clear, single-lever operation ensures straightforward and user-friendly control, making it an ideal choice for both professionals and DIY enthusiasts.
- "Trip Free" Design: The "Trip Free" design prevents anyone from keeping the circuit breaker in the "ON" position during a fault current condition, thereby reducing the risk of electrical hazards.
- Waterproof Construction: Whale designed this circuit breaker to withstand a challenging environment, protecting it against moisture and corrosion.
- Clean Appearance: Recessed mounting holes create a tidy and professional look, enhancing the aesthetics of your electrical panel.
- Robust Terminals: Includes sturdy 5/16 M8 terminals allowing for high-torque connections and reducing the potential for loose connections.
- Trip Status Indication: Features a large lever that you can position both vertically and horizontally. You'll have a clear indication of the trip status, ensuring straightforward troubleshooting.
- Ignition Protected: The circuit breaker is designed with ignition protection. This ensures its safety for installation on gasoline-powered boats, even in potentially hazardous conditions.
- Meets SAE J1171 Standards: This product meets SAE J1171 external ignition protection requirements, ensuring compliance with industry standards.
*Do not use this circuit breaker as a switch in situations where high inrush currents are expected.
Enhance your electrical control and protection with the Blue Sea Systems Circuit Breaker 187-Series Surface Mount 40A. Whether you're on a boat or managing a complex electrical system, this product provides the ultimate solution for power management and safety. Invest in the 187-Series Circuit Breaker and experience a new level of control and protection for your electrical systems. See Blue Sea Systems' full range here.
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
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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

