Relays are used as an electromagnetic switching element by operating when current flows through them.
■ Star/Delta time delay relay:
The delay range: 0,1second-10minutes
Switching time t2: 0,1s-1s
■ Asymmetric cycle timer relay: 0,1sec-100days
■ Level control relay: 2-level control mode
■ Staircase timer: delaying reaction to contact switch
■ Multifunction output relay: single / double contact
■ Three-phase voltage relay: over-voltage/ asymmetric timer relay / under-voltage / phase sequence / phase fault