Wilo Rexa CUT GE Einbau- Und Betriebsanleitung Seite 147

PE U V W
M 3~
Fig. 8: Connection diagram: Bimetallic strip,
direct starting
PE U V W
M 3~
Fig. 9: Connection diagram: PTC sensor, direct
starting
6.5.5 Monitoring equipment connection
Installation and operating instructions Wilo-Rexa CUT GE
Installation and electrical connection
20 21 DK
Wire
1, 2
3
4
5
6
Green/yellow (gn-
ye)
10 11 DK
Wire
1, 2
3
4
5
6
Green/yellow (gn-
ye)
Refer to the enclosed connection diagram for details regarding the connection and in-
stallation of the monitoring devices. Electrical connection must always be carried out
by a qualified electrician!
NOTICE! The individual wires are designated according to the connection diagram.
Do not cut the wires! There is no additional assignment between the wiring diagram
and connection diagram.
DANGER
Risk of explosion due to incorrect connection!
If the monitoring devices are not connected correctly, there is a risk of fatal injury
due to explosion in potentially explosive areas! Connection must always be carried
out by a qualified electrician. If used in potentially explosive areas:
• Connect the thermal motor monitoring via an evaluation relay!
• Deactivation by the temperature limiter must be conducted with reactivation
lock! It must only be possible to restart the unit when the unlock key has been
actuated by hand!
• Connect the external electrode (e.g. sealing chamber control) via an evaluation
relay with an intrinsically safe circuit!
• Note the additional information in the chapter on potentially explosive areas
found in the appendix of these installation and operating instructions!
Designa- Terminal
tion
20, 21 Monitoring of motor winding
U L1
V L2
W L3
DK Monitoring of motor compartment
PE Earth
Designa- Terminal
tion
10, 11 Monitoring of motor winding
U L1
V L2
W L3
DK Monitoring of motor compartment
PE Earth
en
147