Connecting the power supply and inputs of 3KC3 transfer switching equipment

The control circuit of the 3KC3 transfer switching equipment has two power supplies with two inputs for each power supply (pins 101/102 and 201/202). The 3KC3 transfer switching equipment also has three control inputs (pins 313, 314, 315) and a common control terminal (pin 317).

NOTICE

Damage to the device

The 3KC3 transfer switching equipment must only be supplied with a voltage of 230 V AC.

At voltages of 400 V AC, an additional autotransformer is necessary.

Procedure

See the tables below for the requirements of the supply lines needed for the connection:

Supply lines for control connections 313 - 317

Cu

86815686539.png

Lmax

86816851595.png

0.5 ... < 1.5 mm2

≤ 10 m

1.5 ... 2.5 mm2

≤ 100 m

86816915851.png

0.5 ... < 1.5 mm2

≤ 10 m

1.5 mm2

≤ 100 m

Supply lines for power supply connections 101 - 202

Cu

86815686539.png

Lmax

86816851595.png

0.5 ... 2.5 mm2

≤ 10 m

86816915851.png

0.5 ... < 1.5 mm2

  1. Open the cover of the transfer switching equipment.

    98620133643.png
    Open the cover
  2. Connect the supply lines with the connector for control terminals 313 to 317. Control inputs 313 - 315 must be supplied via the common control terminal on pin 317.

    98623410699.png
    Connect the supply lines with the connector for control terminals 313 - 317
  3. Connect the supply lines with the connector for power supply terminals 101 to 202.

    98623517451.png
    Connect the supply lines with the connector for power supply connections 101 - 202
  4. Tighten the contacts with a screwdriver.

  5. Plug both connectors into the connection of the transfer switching equipment.

    98623521803.png
    Plug in the connector
  6. Close the cover.

    98623526155.png
    Close the cover