1
2
4
1 - RATINGS LABEL
2 - BATTERY
3 - CONNECTOR PINS
4 - PRODUCTION DATE LABEL
L
1
2
3
230V
50 Hz
COMM
OFF
4
N
ON
Electrical Connections
All necessary electrical connections should now be made. Flush wiring can enter from the
rear through the aperture in the backplate. Surface wiring can only enter from beneath the
timeswitch and must be securely clamped. Recommended cable sizes are 1.00 or 1.5mm.
CentaurPlus timers are double insulted and do not require an earth connection but an
earth connection is provided on the backplate for terminating any cable earth connectors.
Earth continuity must be maintained and all bare earth connectors must be sleeved.
Ensure no earth conductors are left protruding outside the central space enclosed by the
backplate.
Internal diagram - C17 -ZW
The CentaurPlus ZW has voltage free
contacts. A link L-2 is required for mains
voltage applications
Battery reserve
The battery must be commissioned prior to fitting the timeswitch to the backplate. This
is achieved by the means of a commissioning strip situated in the back of the unit. Pull
out the battery commissioning strip at the back of the timeswitch and re-insert the
battery; the reserve is now activated. When the timeswitch is running the battery
reserve clock display will disappear. This is to prolong the life of the battery.
PULL
T
O REMOVE
3
Rear view of CentaurPlus timeswitch
4
