Lewmar Windlass Thermal Circuit Breaker Panel - 70Amp

Protecting your boat's windlass system starts with the right circuit breaker, and this Lewmar 70Amp thermal model delivers unmatched reliability on the water. Designed specifically for marine DC setups, it safeguards against overloads during those demanding anchoring moments, ensuring your windlass operates smoothly without unexpected downtime. Boaters trust it for its robust construction that stands up to saltwater exposure and constant vibration.

Why Every Serious Boater Needs This Windlass Circuit Breaker

In the harsh marine environment, a standard fuse just won't cut it. This panel-mount breaker combines effortless switching with automatic protection, tripping instantly on overloads while preventing manual override during faults. Imagine hauling up heavy chain in rough seas—without this, a simple overload could leave you stranded. Its waterproof design and ignition protection make it a must-have for engine bays or exposed deck areas, giving you peace of mind on extended cruises.

Standout Features for Superior Performance

• Versatile Voltage Handling: Seamlessly works with DC systems up to 48 volts, perfect for modern boats with varied electrical demands.
• Straightforward Operation: Single-lever control for quick on/off and reset, even with gloves on during stormy conditions.
• All-in-One Protection: Merges circuit switching and thermal overload defense, simplifying your wiring setup.
• Trip-Free Mechanism: Automatically resets only after cooling, blocking dangerous continuous faults that could spark fires.
• Safety First: Ignition-protected to meet stringent marine standards, reducing explosion risks near fuel sources.

Technical Edge in a Compact Package

Built as a Type III thermally responsive bi-metal blade breaker, it reacts precisely to heat from excessive current, offering faster response than magnetic alternatives in fluctuating loads typical of windlass use. At just 0.5 pounds, its lightweight panel-mount design integrates neatly into tight console spaces without adding unnecessary bulk.

Seamless Compatibility with Lewmar Gear

Tailored for Lewmar electric windlasses and winches, this breaker slots perfectly into your setup, handling the high inrush currents when dropping or retrieving anchor. It prevents motor burnout from stalled loads or battery surges, extending the life of your anchoring system. Pair it with V1, V2, or Pro-Series models for optimal performance—always cross-reference your manual for the exact match.

Installation Insights and Long-Term Reliability

Mounting is straightforward on any flat panel, with clear labeling for easy wiring. The bi-metal element self-regulates based on real-world heat buildup, making it more forgiving than fixed fuses in variable marine climates. Regular visual checks keep it trip-ready, and its corrosion-resistant build laughs off years of spray and humidity. Boaters report fewer nuisance trips compared to cheaper imports, thanks to precise calibration.

The Marine Advantage of Thermal Technology

Unlike basic magnetic breakers that might chatter under intermittent loads, thermal designs like this one provide smooth, heat-based protection ideal for windlasses cycling on/off repeatedly. This means less wear on your batteries and motors, quieter operation, and confidence during night anchoring when reliability counts most.