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.
Combines the functions of the original CRM-42 / CRM-42F relays and adds new ones.
The intelligent 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 (s). 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.
On the other hand, a long press (> 2 s) can switch off the output prematurely and end the ongoing delay.
Possibility to select a function with signalling (function a) or without signalling (function b) of the output by flashing 40s and 30s before the delay expires.
Output contact handles surge currents up to 80A
Control input with the possibility of loading up to 100mA load (glim 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
Adjustable time range 0.5… 10 minutes.
3-wire or 4-wire connection (input S can be controlled by potential A1 or A2)