MITSUBISHI Electromagnetic Opening/Closing Devices (Motor capacity 400 to 440-VAC class: 22/42)
An electromagnetic switch is a switch that combines an electromagnetic contactor and a thermal relay. It is used for motor operation, burnout protection, etc. in air conditioners and industrial machinery. There are two types of products shapes, one with a case on the body and one without, and some with a push button on the case cover. There are two types of operation: a reversible type, in which the operation can be reversed by switching the contacts, and an irreversible type, in which the operation cannot be reversed. There are also products that use twin contacts as auxiliary contacts and products that can reverse-phase brake the motor. In addition, there are those equipped with a surge absorption function and a lock unit, those utilizing a direct current excitation type that reduces the beating sound of the electromagnet, etc. and a product can be selected according to the application. The number of poles, the rated current, the minimum operating voltage, etc. differ depending on the product, so check in advance.