Sea-Dog Line 420872-1 Surface Mount Circuit Breaker 40 Amp 48V

The Sea-Dog Line 420872-1 is a high-amperage surface mount resettable circuit breaker designed for marine electrical systems. This thermal-type breaker provides reliable overcurrent protection with a 40 amp rating at 48 volts DC, making it ideal for protecting high-draw equipment and accessories on boats and marine vessels.

Key Features:

• 40 amp capacity at 48 volts DC for heavy-duty marine applications
• Single pole thermal breaker with 3000 ampere interrupt rating
• Manual reset design with visible indication when tripped
• Surface mount installation - no panel cutout required
• Water resistant and sealed construction for engine compartments and bilge areas
• Compact dimensions: A=2-7/8", B=1-7/8", C=1-3/4", D=2-3/16", E=1-1/16"

This circuit breaker provides essential electrical protection while offering the convenience of a resettable design. When an overload condition occurs, the breaker trips and provides a clear visual indication, allowing you to quickly identify and resolve the issue. Once the problem is corrected, simply reset the breaker to restore power. The water-resistant construction ensures reliable performance even in harsh marine environments including wet bilge areas and engine compartments.