Wilo Control EC-Booster Installation And Operating Instructions Manual page 19

8.1
Fig. 15: Set the rated motor current at the
motor protection switch
6.5.7 Mains connection: Variable-speed
pump (electronically controlled
pumps)
5
2 4 6
L1 L2 L3
~
FC
~
Fig. 16: Pump connection with 3-pole circuit
breaker
5
N
2 4
L N
~
FC
~
Fig. 17: Pump connection with 2-pole circuit
breaker
6.5.8 Connection, thermal motor monit-
oring
Installation and operating instructions • Wilo-Control EC/ECe-Booster • Ed.02/2023-08
Motor current monitoring Wilo-Control EC-B ... for pumps with rated current greater
than 12 A
8 Motor protection switch
8.1 Potentiometer for motor current monitoring
After connecting the pumps, use a screwdriver to set the rated motor current on the re-
spective motor protection switch.
8
3 Terminal strip: Earth (PE)
5 Circuit breaker 3-pole (3~) / 2-pole (1~)
FC Frequency converter
Insert the connection cable laid by the customer through the threaded cable glands and se-
3
cure. Connect the wires to the circuit breaker as per the connection diagram.
3
CAUTION
Property damage due to external voltage!
An external voltage which is applied destroys the component.
• Do not apply external voltage.
en
19