Three Phase Electrical Connection; Thermal Probes - Zenit DRO Manuel D'utilisation Et D'entretien

8.2 THREE PHASE ELECTRICAL CONNECTION

Connect the yellow-green lead to earth and supply the motor pump output leads. If the motor pump has 3 leads
they must be connected to a three phase line with voltage and frequency equal to that indicated on the data plate,
or to a control panel with devices to reduce the initial current. If the motor pump has 6 leads they must be
connected to a control panel with a Y/delta switching device. If the connection is made directly to the delta the
supply voltage is the lower of those indicated on the data plate; if the connection is made to the Y the voltage is the
higher of those indicated. The supply leads are marked as follows:
- 3 leads U – V – W;
- 6 leads U1 – U2 – V1 – V2 – W1 – W2;
THREE-PHASE electrical connection fig.4.

8.3 THERMAL PROBES

Thermal protection is incorporated in the single phase motors and resets automatically.
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