Electrical Symbols – Contacts, Switches, Contactors and Relays
Symbol Name Description Relay Contact Shown with relay in de-energized or in reset position. (Show relay coil designation near contact.) Timing Relay Contact TDC indicates contact closes at end of timing period. TDO contact opens at end of timing period. Coil Relay, contactors, circuit breaker, solenoid etc. (Show device designation, X1) Coil Timing Relay – … Read more