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Electronic Timers and Push Buttons | ET-314 Extension Timer with Delay (99 Hrs), 85-265V, Extension up to 9 Hours

Extension Timer with Delay (99 Hrs), 85-265V, Extension up to 9 Hours

Datasheet (118kB)

The ET-314 is a programmable extension timer for energy saving building control. The ET-314 has a voltage-free 10A relay output that is switched on for a configurable time period (from 1 to 9 hours) after a delay period has elapsed (from 0 to 99 hours). This allows the plant to be enabled automatically at the correct time in the future without any user being present.  The unit has an automatic power saving mode that will dim the LED displays after the unit has been inactive for two minutes.

The ET-314 is an user-friendly device with fully adjustable timings for each extension (in steps of 1 hour) and a pre-configurable maximum extension period via an internal settings. Therefore it provides simple yet powerful control of plant equipment when they are unmanned or when they require a temporary override to their regular control schedule.


  • 85-265VAC Power Supply (ET-314)
  • 18-28VAC/DC (ET-314-24V)
  • Extension Time Up To 9 Hours
  • Delay Time Up To 99 Hours
  • Pre-configurable Maximum Extension Time
  • Energy Saving Display Auto-Dimming
  • 10A 250VAC Change-Over Relay


  • Heating and lighting control
  • Fan control
  • Community Centres
  • Churches
  • Schools
  • Offices
  • Hired sports courts and rooms
  • Changing rooms
  • Meeting rooms
  • HVAC equipment
  • Immersion heaters
  • Security lighting