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W2
U2
PTC
U1
V1
L1
L2
Fig. 12: Δ connection
W2
U2
PTC
U1
V1
L1
L2
Fig. 13: Y-connection
C B
Z2 U2
L
N
Fig. 14: Mains connection 1~ with operating
capacitor
L
Z1
Z2
BK
GY
RV
WH
CB
CA
RE
2
Fig. 15: Mains connection 1~ with starting or
operating capacitor
56
system are available. This must be explicitly stated when ordering. The overall installation
must comply with IEC TS 60034-25:2014.
Setting the motor protection switch:
•
Set according to the rated motor current specified on the rating plate of the motor.
If the motor protection switch is switched in a heating circuit of the motor supply line
V2
(U1/V1/W1 or U2/V2/W2), set the motor protection switch to the value 0.58 x rated motor
current.
•
If the motor is equipped with a PTC thermistor sensor (special version), attach the PTC
W1
thermistor sensor to the PTC thermistor tripping unit (provided by the customer).
L3
V2
•
The mains connection is dependent on the motor power P2, mains voltage and activation
type. Refer to the following table and Fig. 12 and 13 for the required connection of the
W1
connecting bridges in the terminal box.
•
When connecting automatic switchgears, observe the corresponding installation and op-
L3
erating instructions.
Activation type
U2
Z2
Direct
Table 6: Terminal assignment
U1
Z1
N
Terminal
L1/L2/L3
L1/L2/L3
RD
U1
Table 7: Tightening torques of terminal board
U2
3
4
Installation and operating instructions • Wilo-VeroLine-IPL-Z, Wilo-VeroTwin-DPL-Z • Ed.01/2024-07
NOTICE
The connection diagram for electrical connections is in the terminal box
cover.
CAUTION
Risk of property damage!
Only a maximum voltage of 7.5 V DC may be applied to the PTC thermistor
sensor terminals. A higher voltage will destroy the PTC thermistor sensor.
Motor power
P2 ≤ 3 kW
Mains voltage 3∼ 230 V
Δ-connection (Fig. 12)
NOTICE
Use of soft starters is recommended to limit the starting current and pre-
venting tripping of overcurrent protection devices.
Tightening torque
in Nm
1.8 ± 0.2
2.2 ± 0.2
Mains voltage 3∼ 400 V
Y-connection (Fig. 13)
Screw
M4
M5
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