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CT-S Range

High performance time relays

ABB’s advanced CT-S range of electronic time relays were designed for universal use. The range includes 24 single-function devices and 16 multifunction timers with up to 17 functions offering the highest flexibility in operation. The devices feature 7 or 10 time ranges that are adjustable from 0.05 seconds to 300 hours.

Every CT-S device is available in two different connection technologies:
(1) Familiar double-chamber cage connection terminals (screw terminals) 
(2) ABB's vibrations-resistant Easy Connect technology (push-in terminals)


  • Improve installation efficiency
  • Reliable in harsh conditions
  • Global availability


  • Two connection technologies available
  • Remote potentiometer connection
  • Devices with operating temperature down to -40°C available
  • Selected products tested according to rolling stock standards