20 Amp DC Circuit Breaker

A DC electrical circuit with a 20 amp DC circuit breaker is protected from overcurrent of more than 20 amperes. As such, when a direct current exceeding 20 amperes flows through the circuit, the breaker trips cutting off the current flow.

Features

When considering a 20 amp DC circuit breaker, here are some key aspects to ponder:

• The process in which the breaker cuts off current flow can be time-delayed or instantaneous depending on the application.
• This circuit breaker will offer overcurrent protection to the maximum current rating of twenty amperes, beyond which it interrupts flow.
• Unlike a fuse that needs replacing stemming from permanent damage, you reset a 20 amp DC circuit breaker after an overcurrent event.
• Utilizes a thermal element for tripping where the overcurrents are long-lasting, or a magnetic element for high-amplitude and impulsive current surges.

Applications

When using a 20 amp DC circuit breaker, consider overall system requirements alongside factors like load characteristics, wire gauge and temperature. Circuit protection is important especially in view of the environmental conditions.

Some common applications where you can find use of a 20 amp DC circuit breaker include:

• 20 amp DC circuit breakers are a common feature in solar power installations used in circuitry for inverters and battery packs.
• Automated systems in industrial machinery and equipment employ 20 amp DC circuit breakers to prevent damage induced by excessive currents.
• In automotive auxiliary devices like inverters and chargers as well as circuits powering audio systems, headlights and windows.
• Navigation lights and communication equipment in watercraft like radios and satellite utilize 20 amp DC circuit breakers in their circuits.