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Time relay is a control appliance that uses electromagnetic principle or mechanical principle to achieve time delay control. It has many types, such as air damping type, electric type and electronic type. Time relays can be divided into two types: energized time delay type and power-off time dela...
The role of solid state relays Solid-state relays are actually non-contact switching devices with relay characteristics that use semiconductor devices to replace traditional electrical contacts as switching devices. Single-phase SSR is a four-terminal active device, of which two input control ter...