TRT3 48v – 110v – 230v


  • Delay on operate and on release
  • Timer relay module with 1 changeover, width 23 mm
  • The input-side transformer offers the following advantages: 1. High interference voltage protection 2. Galvanic separation
  • Supply: 230V AC with control LED for energised relay
  • 2 functions: Delay on operate and on release
  • Description
  • Ordering information
  • Imput data
  • Output data
  • General data

    • The TRT3 is a delay on operate and on release timer relay with built-in transformer for harsh networks.
    • The functions are selectable via an outer bridge.
    • The time range is 0.2-5.0 seconds.


    •  The 230V supply voltage is connected to terminals A and B.
    •  The changeover is located at terminals:
      – F common
      – E normally open contact and
      – G normally closed contact
    •  Delay on operate: The device is connected to the delay on operate timer relay by a bridge at C and D. When the set time elapses, the contact closes between F and E after application of the supply voltage.
    • Delay on release: If terminals H and D are jumpered and opened again, the output relay is energised and releases again when the set time elapses.
    Case colour: grey  
    Type TRT3
    Order number 905115
    Supply voltage    905115 230 V ± 10%, 50-60 Hz
    Supply voltage    905116 110 V ± 10%, 50-60 Hz
    Supply voltage    905117   48 V ± 10%, 50-60 Hz
    Power consumption 0,35VA
    Function indication LED
    Contact arrangement 1 changeover
    Max switching voltage 250V AC
    Continuous current 5A
    Inrush current 8A
    Switching power AC max. 1200 VA (ohmic load)
    Switching power DC max. 120 W (ohmic load)
    Coil/contact isolation voltage 4 kV ms.
    Time range 0,2 – 5,0 s
    Service temperature 0°C to +40°C
    Storage temperature  – 20°C to +80°C
    Degree of protection IP 20
    Screwed connection AWG 12
    Dimensions 60 x 58 x 23 mm


    Price from 10 to 25 pcs 66€*
    Price from 26 to 50 pcs 53€*
    > 50 Quote request


    * no packaging and ex works, EXW Troisdorf


    Monitoring / Supply