Sea-Dog Line 420873-1 Surface Mount Resettable Circuit Breaker 50 Amp 48V

The Sea-Dog Line 420873-1 is a heavy-duty 50-amp surface mount circuit breaker designed for marine electrical systems operating at 48 volts DC. This thermal-type circuit breaker provides reliable overcurrent protection with a convenient resettable design that eliminates the need for fuse replacement.

Key Features:

• 50-amp current rating with 48-volt DC capacity
• Single pole thermal breaker with 3000-ampere interrupt rating
• Visible trip indicator shows when breaker has been activated
• Surface mount design requires no mounting panel
• Water-resistant and sealed construction suitable for engine compartments and bilge areas
• Push-to-reset operation for easy recovery after overload

Dimensions:

• A: 2-7/8"
• B: 1-7/8"
• C: 1-3/4"
• D: 2-3/16"
• E: 1-1/16"

Ideal for protecting high-amperage marine electrical circuits including windlasses, bow thrusters, inverters, and other demanding applications. The sealed, water-resistant housing ensures reliable performance in harsh marine environments where moisture and vibration are constant concerns.