[Practical and Durable]----Easy to work, direct switch without contactor. The control switch is made of PC flame-retardant material shell, pure copper, copper-copper points, nickel-plated screws, waterproof buttons, with plastic protective cover, waterproof and oil-proof, and can be used for a long time. [WIDELY USED]----This is a waterproof control switch, a holding switch, a drilling switch, and a machine button. Widely used in mechanical equipment, textile machinery, distribution boxes, ships, operating rooms, etc. Multifunctional control switches are suitable for industrial equipment, production equipment, complete cabinets, factory workshops, etc. 【Switch Description】---- The ON button is automatically locked, the OFF button is automatically reset. The control switch is an open working mode, the model is ka0-10kh, and the distance between the installation holes is about 7.7 cm. The mechanical life of the control switch is about 1 million times, and the electrical life is 500,000