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INSTALLATION
A705-74-880 Issue K
3.6.2 Connect the electrical supply to the pump-motor (380 - 415 V, 50 Hz electrical
supplies)
Connect the electrical supply from the contactor to the pump-motor as described below.
1. Remove the cover from the pump-motor terminal-box (Figure 1, item 17).
2. Either use the cable glands supplied if acceptable for your cable and proceed to step 4, or fit your own glands as
described in step 3 below.
3. Fit a suitable cable-gland and nut to the entry hole, then pass the supply cable through the cable-gland and
tighten the gland. The cable-gland must be rated to provide seal protection of IP55 (in IEC 529) or better to the
terminal-box.
4. Refer to Figure 4. Ensure that the links (1) are correctly configured on terminals U1 and W2, V1 and U2, and W1
and V2.
Figure 4 - Electrical Connections: 380/415 V, 50 Hz Electrical Supplies
5. Connect the phase conductors (L1, L2, L3) of the supply cable (4) to terminals U1, V1 and W1, as shown in
Figure 4, using a suitable secure method. It is recommend that you use ring crimp terminals.
6. Connect the earth (ground) wire to the earth (ground) terminal (3) using a suitable secure method. It is
recommend that you use ring crimp terminals.
Ensure all power supplies are Isolated before commencing work.
1. Motor terminal connectors supplied with motor) 4. Power lead
2. Motor terminal box 5. Motor Thermistor wires (supplied with motor)
3. Earth connections 6. Control thermistor wires
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