The Potter & Brumfield W58-XB1A4A-2 2 Amp Circuit Breaker is a panel-mounted thermal circuit breaker with one throw and two positions. It is suitable for interior use and designed for AC current with a voltage range of 201-250V. This black circuit breaker offers overload protection and is compatible with wire gauges ranging from 1 to 5 AWG. With its on/off operation method, this unit provides reliable protection for electrical circuits in various settings.