The AIRPAX / SENSATA part M39019/03-257S is a reliable and versatile circuit breaker designed to provide protection for electrical circuits. This magnetic 2-pole breaker is capable of handling a maximum current of 20A and can be used in both 240VAC and 50VDC applications. With its compact size and durable construction, this circuit breaker offers reliable performance and ensures the safety of your electrical system. It is an excellent choice for various industrial, commercial, and residential applications where circuit protection is essential.