This is a 40 amp, two pole double-pole single-throw (DPST) circuit breaker manufactured by Schurter. It is rated at 240 volts AC, has a nominal current rating of 20 amps, and is UL Recognized. It features a one-piece double-pole switching element complete with a self-cleaning, dust-proof contact system, as well as a built-in manual trip, which makes it suitable for use with emergency circuits. The device is mechanically linked to the snap action actuator, which ensures the circuit breaker is tripped in the event of an overload or short circuit. It also features integrated trip indication, which displays the circuit breaker's open/closed status. The molded case construction is designed to prevent ingress of water and dust, and the terminals feature a reliable screw connection system.