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28 WILO AG 11/2007
7.2.2 Potential-free contact
Fig. 12: Installing the safety socket
For installation outside the front wall installation, a flush-
mounted cavity wall socket with a cut-out base is required
(Fig. 12). It is covered with a commercially available cooker
socket from any manufacturer. When the insert for the
cooker socket is removed, the mains plug can be passed
through for initial connection and maintenance.
Fig. 13: Switching diagram
The device has a potential-free normally open alarm contact
on the motor board (Fig. 13) for forwarding alarms:
Terminals 40 / 41
Max. contact load: 5 A/250 V.
Note for using screwless terminals:
Open the terminal with a screwdriver and push the cable into
the lower opening.
Each terminal can only hold one conductor.
1
HA HI
CB
43
3
2
1
P1
40 41
K2
K1
PE
M
1~230V/50Hz
max.
5A/250V
40 4
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