ABB – 1SVR730100R0300 – CT-ERS.21S On-Delay Timer Relay, 24–240 VAC/DC

The ABB SVRR (CT‑ERS.S) is a single-function ON-delay electronic timer from the CT‑S range. Compact and DIN-rail mountable, it features adjustable time delay ranges, dual SPDT contacts, and a universal control voltage—ideal for industrial automation and sequence control applications.

Key Specifications:

• Model / Part Number: CT‑ERS.S / SVRR  

• Function: ON-delay timer (delay on make), single-function  

• Control Voltage: – VAC/DC, / Hz  

• Time Range: . s to  h, selectable across ranges  

• Outputs:  × SPDT ( change-over) relay contacts,  A @  VAC /  A @  VDC  

• Terminal Type: Screw-type terminals (Cage)  

• Dimensions: . mm width; . × . mm overall  

• Housing: DIN-rail (IEC ), IP/IP rated  

• Indicators: Dual front LEDs for supply/timing and output status  

• Certifications: IEC ‑, UL , CSA, GL, CE, CCC, RoHS