Maintenance of household modular contactor when it is not running

(1) When stopping use, clean the contactor regularly to keep the contactor clean. In particular, whether the connecting wire is secure, whether there is any looseness, whether the wiring insulation is damaged, etc.

(2) Maintenance of household modular contactor contact system: whether the contact between dynamic and static electric shock is reliable, whether the middle spring is normal, and whether there is jamming. Whether the contacts are loose, whether there are burn marks, whether the pressing contacts are flexible and reliable contact.

(3) Strictly measure the phase-to-phase insulation resistance of the modularized contactor, and the resistance value is not less than 10MΩ

(4) Maintenance of the contactor coil, such as whether there is open welding, burnout, etc., whether the insulation around the coil is discolored, etc.

(5) Maintenance of the iron core: It can be disassembled and inspected when the power is cut off. Generally, check the contactor of the iron core. The main reason is that there is abnormal sound during operation. Because the iron core is loose or rusted, the contactor is also abnormal. One of the reasons for the ringing. At the same time, you can also observe whether the short-circuit ring is damaged, and replace it if necessary.

In short, how to wire and install household modular contactors, correct wiring, installation and maintenance, can greatly reduce contactor failures and ensure the safe and normal operation of the equipment.