ABB CT-ERS.21S 1SVR730100R0300 On-Delay Time Relay

The CT-ERS.21S is a single-function electronic time relay from the CT-S timer range.

It provides an ON-delay (delay on make) function with 10 time ranges from 0.05 s to 300 h.

This time relay operates with a rated control supply voltage of 24 - 240 V AC / DC and has a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A.

A sealable transparent cover for protection against unauthorized changes is available as accessory.

The device offers screw connection technology with double-chamber cage connection terminals.

CT-ERS.21S Time relay, ON-delay 2c/o, 24-240VAC/DC

Timer Relay Type:- ON-Delay

Time Range:-  0.05 s ... 300 h

Rated Control Supply Voltage (U_s): 24 ... 240 V AC/DC

Rated Operational Voltage: Auxiliary Circuit 250 V

Rated Frequency (f):- 50 / 60 Hz DC

Output:- 2 c/o (SPDT) contacts

Minimum Switching Capacity:- 12 V 10 mA

Rated Impulse Withstand Voltage (U_imp):- Input Circuit 4 kV Output Circuit 1 / Output Circuit 2 4 kV

Rated Insulation Voltage (U_i):-  Input Circuit / Output Circuit 500 V Output Circuit 1 / Output Circuit 2 300 V

Electrical Durability:- AC-12 100000 cycle

Maximum Operating Voltage UL/CSA:- Output Circuit 300 V AC

Ambient Air Temperature Operation:- -40 ... +60 °C

Ambient Air Temperature Storage:-  -40 ... +85 °C