The AIRPAX / SENSATA M39019/01-315S circuit breaker is a low-power, trip-free magnetic circuit breaker conforming to MIL-PRF-39019. Designed for reliable circuit protection, this breaker offers a compact form factor and is suitable for use in various military and industrial applications. It provides overcurrent protection and incorporates a trip-free mechanism for enhanced safety. The device's specifications, including current ratings, time delays, and resistance/impedance values, are detailed in Table I of the MIL-PRF-39019/1H standard. Refer to Table II for cross-reference of superseded part numbers. Mounting hardware and terminals are specified in Figure 1.