The AIRPAX / SENSATA M39019/01-254S is a low-power, magnetic, trip-free, one-pole circuit breaker conforming to MIL-PRF-39019. It is designed to provide overcurrent protection in a variety of military and industrial applications. The circuit breaker features a sealed construction to prevent contamination and ensure reliable operation. It is characterized by its compact size, low power consumption, and quick-acting trip mechanism. The device is suitable for use in electronic equipment, control panels, and other applications where overcurrent protection is required. Dimensions vary based on dash number, with metric equivalents provided for general information. Mounting hardware includes a hex nut and lockwasher.