A 5 amp DC circuit breaker is an electrical device that protects electrical circuits from overcurrent conditions exceeding 5 amperes. When the current exceeds five amperes, the breaker trips interrupting current flow and subsequently protecting circuit components from damage.

Features
An excessive current flow beyond the ampere rating can result in overheating of components and electrical fires. A 5 amp DC circuit breaker can implement fast/slow tripping depending on the application. Tripping characteristics define the circuit breaker’s quickness to respond to a current excess.
Applications
When installing a 5 amp DC circuit breaker, ensure it suits your application within the acceptable safety standards. Such a circuit breaker will offer overcurrent protection to your DC electrical circuit in the following instances:
- Electrical components in vehicles like control circuits and lights utilize a 5 amp DC circuit breaker.
- In a photovoltaic system, 5 amp DC circuit breakers find use in circuit protection of batteries, solar panels, and charge controllers.
- Internal circuits of various electronic appliances and devices such as radios utilize 5 amp DC circuit breakers for overcurrent protection.
- Navigation and lighting equipment on marine vessels like boats can employ a 5 amp DC circuit breaker to safeguard DC electrical systems.