ABB Timer Relay

The highly sophisticated CT-S range is ABB’s most modern and universal time relay range, with innovative connection technology.

On-delay function
Time range pre-selection and fine adjustment
LEDs for status indication
Screw terminals
Double-chamber cage connection terminals
Integrated marker label

The ABB CT-ERS.21S series timer relay is a 2C/O SPDT contacts, single-function, electronic ON delay timer. It operates with a rated control supply voltage ranges between 24VAC/DC and 240VAC/DC. It has a sealable transparent cover for protection against unauthorised changes, available as an accessory.

10 time ranges selectable between 0.05 second and 300 hours
Precise adjustment by front-face operating controls
Screw connection technology or easy connect technology available
Housing material for highest fire protection classification
2 LEDs for status indication
Rotary switch for the preselection of the time range
Tool-free mounting on DIN rail, as well as, demounting
Operation temperature ranges between -40°C and 60°C

UL 94 V-0
UL 508 approved
CAN
CSA C22.2 No.14, GL
GOST
CB scheme
CCC
CE certified
C-Tick