The AIRPAX/Sensata part AP12-87056-042 is a circuit breaker designed for a wide range of applications. It features two poles and has a maximum rating of 15 amps at 250 volts AC and 50 volts DC. The toggle actuator allows for easy on/off operation and does not have illumination. This circuit breaker is specifically designed to be panel mounted, making it a convenient and reliable choice for various electrical systems.