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Programmable staircase switch CRM-47


EAN: 8595188191210 | Code: 9121


  • Staircase switch enables delayed switching off of lighting on stairs, corridors, entrances, common areas or for delayed running of fans in the toilet or bathroom.
  • The programmable staircase switch offers similar application possibilities as the CRM-4, while it is possible to extend the delay for functions a, b repeatedly by briefly pressing the control button (buttons). Each short press multiplies the time set by the potentiometer, i.e. setting the potentiometer to 2 minutes with three presses extends the delay up to 6 minutes. The maximum value of such an extended delay will always be 30 minutes, regardless of the number of presses.
  • Long press (>2 s) can switch off the output prematurely and end the ongoing delay.
  • Control input with the possibility of loading up to 100 mA load (glow lamp, LED in the button, etc.).
  • Function (selectable by potentiometer on the front panel)
    • a – STAIRCASE SWITCH, programmable with signalization
    • b – STAIRCASE SWITCH, programmable without signalization
    • c – MEMORY LATCH (press to switch on, press to switch off 
    • d – MEMORY LATCH with delay
    • ON (permanently closed) - e.g. during cleaning, moving
    • OFF (permanently open) - e.g. when replacing luminaires.
  • ZERO CROSS feature: closes the output contact when the voltage crosses zero. 
  • Adjustable time delay (t) 0.5 – 10 m. 
  • Handles surge currents up to 80 A. 
  • 3-wire or 4-wire connection (input S can be controlled by potential A1 or A2).


  • Output: 1x closing, 16 A
  • Housing: 1-MODULE 
  • Supply voltage (frequency): AC 230 V (50/60 Hz)
  • Time range: 0.5 s - 10 min
  • Number of functions: 6
  • Dimensions: 90 x 17.6 x 64 mm (3.5˝ x 0.7˝ x 2.5˝)



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