AT-4
FAAC S.p.A. Via Calari, 10
– 40069 – Zola Predosa (BO) - Italy
Page 14 of 25
3.5.3 TAMPER SWITCH
The device is equipped with a TAMPER switch for signalling any
unauthorized cover opening. This contact can be connected to an external
alarm system. The contacts are normally closed when the cover is closed.
Connections:
NC
Tamper (normally closed)
COM
Tamper (common contact)
Operation of the contacts:
Max. current
50 mA (0.5 Volt voltage drop)
Voltage
+24 VDC
C
OM
NC
K4
Tamper
Fig. 13: Tamper switch