© Edwards Limited 2008. All rights reserved. Page 19
Edwards and the Edwards logo are trademarks of Edwards Limited.
Installation
A313-01-880 Issue A
3.8 Motor electrical connections
Ensure that the electrical installation of the HV pump conforms with your local and national safety
requirements. It must be connected to a suitably rated fused and protected electrical supply and a suitable
earth (ground) point.
3.8.1 Introduction
If you have provided your own motor; connect in accordance with the instructions which have been provided with
the motor.
However, it is recommended that you read Section 3.8.2 to 3.8.4 inclusive and take appropriate note of any relevant
information.
3.8.2 Connect the electrical supply
You must provide suitable strain relief on the electrical supply cable. If you do not, the cable (or wires in the
cable) may become disconnected from the pump and there may a risk of injury or death by electric shock.
Connect the electrical supply to the motor through a contactor which has a manual reset control.
Connect the electrical supply to the motor so that it is automatically switched off if the backing pump stops.
If you do not, the HV pump may overheat if it continues to operate when the backing pump is stopped.
You must be able to isolate and lock out the electrical supply from the HV pump.
The motor must be correctly configured (where necessary) and you must make the correct electrical
connections for your electrical supply. If you do not, you can damage the motor.
Connect the supply through a contactor which has overload-protection or use a controller which incorporates a
contactor.
You must use a contactor which has a manual reset control. If you do not, the HV pump could automatically restart
after an electrical overload or an electrical supply failure.
You must use a suitable multi-wire cable and a suitable cable-gland to connect your electrical supply to the pump
motor. The cable-gland (and adaptor, if fitted) must provide a protective seal to IP44 (or higher), as defined by IEC
529. Refer to the Motor Manual supplied with your motor for the sizes of the electrical supply cable-gland holes in
the motor.
Connect the motor to the electrical supply as described in the Motor Manual supplied.
Obey the safety instructions given below when you make the electrical connections. If you do not,
you can cause injury to people.
Obey the safety instructions given below when you make the electrical connections. If you do not,
you can cause injury to people or damage to the pump/motor.
To Next Page
Loading...
Need help?
General
