Switchgear mains connection

CAUTION

Material damage due to incorrectly set mains voltage!

The switchgear can be operated at different mains voltages. The mains voltage is set to 400 V at the factory. To use another mains voltage, change the position of the cable jumper before connection. If the wrong mains voltage is set, the switchgear will be destroyed!

Mains connection, Wilo-Control EC-L 1 ... /EC-L 2 ...

Insert the connection cables laid by the customer through the threaded cable glands and secure. Connect the wires to the terminal strip according to the connection diagram.

1

Terminal strip: Mains connection

2

Mains voltage adjustment

3

Terminal strip: Earth (PE)

Mains connection 1~230 V:

  • Cable: 3-core
  • Wire: L, N, PE
  • Mains voltage adjustment: Converter bridge 230/COM

Mains connection 3~380 V:

  • Cable: 4-core
  • Wire: L1, L2, L3, PE
  • Mains voltage adjustment: Converter bridge 380/COM

Mains connection 3~400 V:

  • Cable: 4-core
  • Wire: L1, L2, L3, PE
  • Mains voltage adjustment: Converter bridge 400/COM (factory setting)
Mains connection, Wilo-Control EC-L 1 ... /EC-L 2 ...
Mains connection, Wilo-Control EC-L 1 ... /EC-L 2 ...

Mains connection, Wilo-Control EC-L 3 ...

Insert the connection cables laid by the customer through the threaded cable glands and secure. Connect the wires to the main switch as per the connection diagram.

1

Main switch

2

Mains voltage adjustment

3

Terminal strip: Earth (PE)

Mains connection 1~230 V:

  • Cable: 3-core
  • Wire: L, N, PE
  • Mains voltage adjustment: Converter bridge 230/COM

Mains connection 3~380 V:

  • Cable: 4-core
  • Wire: L1, L2, L3, PE
  • Mains voltage adjustment: Converter bridge 380/COM

Mains connection 3~400 V:

  • Cable: 4-core
  • Wire: L1, L2, L3, PE
  • Mains voltage adjustment: Converter bridge 400/COM (factory setting)
Mains connection, Wilo-Control EC-L 3 ...
Mains connection, Wilo-Control EC-L 3 ...