ABB – CT-ERS.21S (1SVR730100R0300) – On-Delay Electronic Timer Relay, 24–240 VAC

The ABB CT-ERS.21S (Part Number 1SVR730100R0300) is a versatile electronic on-delay timer in the CT-S series. With a wide control voltage range, compact 22.5 mm DIN-rail housing, and precision timing from 0.05 s to 300 h, it’s ideal for industrial applications requiring reliable delay functions across global installations.