5 | Installation
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Motor connectors:
U1
V1
W1
U2
V2
W2
U3
V3
W3
P1
P2
P3
P4
Connection of motor temperature
switches:
P1
P2
MTS1
MTS2
MTS3
Control voltage:
≤
250 V
Max current: 1.6 A
MTS = Motor temperature switch (in mo-
tor coil)
Double star connection (low voltage):
Star connection (high voltage):
5.5 Electrical Connection of the Monitoring Devices
NOTE
In order to prevent potential nuisance alarms, Busch recommends that the control system
is configured with a time delay of at least 20 seconds.
5.5.1 Wiring Diagram Temperature Switch
AC (cos
φ
=1): U = 250 V ; I = 2.5 A
AC (cos
φ
=0.6): U = 250 V ; 1.6 A
DC: U = 24 V ; I = 1.6 A
DC: U = 48 V ; I = 1.25 A
Contact:
Normally closed
Switch point (T):
pin 1 + 2 = 140 °C
2
1
T
Connector:
WAGO CAGE CLAMP
®