Contactor not prone to derating

The invention provides a contactor which is not easy to derate, a traditional contactor is improved, the internal mechanical strength of the original contactor is reduced and then derating is caused due to continuous temperature rise of the contactor in the operation process, so that a safe and stable contactor is necessary to design. The internal temperature of the contactor can be effectively reduced, and stable operation of the contactor is ensured. 本发明提供了一种不易降额的接触器，对传统接触器进行改进，原来的接触器由于在运行过程中，接触器会不断升温升温，大量的温度会导致的内部机械强度下降，然后造成降额，因此有必要设计一款安全稳定的接触器，能有效地降低接触器内部的温度，保证接触器的稳定运行。