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Requirements

These general requirements apply for electrical installation:

• The supply authority must be notified before installing the pump if it will be connected to the public

mains. When the pump is connected to the public power supply, it may cause flickering of

incandescent lamps when started.

• The mains voltage and frequency must agree with the specifications on the data plate. If the pump can

be connected to different voltages, the connected voltage is specified by a yellow sticker close to the

cable entry.

• The fuses, short-circuit, and circuit breakers must have the proper rating, and the pump overload

protection (motor protection breaker) must be connected and set to the rated current according to the

data plate and if applicable the cable chart. The starting current in direct-on-line starting can be up to

six times higher than the rated current.

• The fuse rating and the cables must be in accordance with the local rules and regulations.
• If intermittent operation is prescribed, the pump must be provided with monitoring equipment

supporting such operation.

• The motor is convertible between different voltages, as stated on the data plate. This conversion is

done on the terminal board.

• The thermal contacts must be in use.
• FM-approved pumps must be provided with FLS due to the approval requirements.

Cables

These are the requirements to follow when you install cables:

• The cables must be in good condition, not have any sharp bends, and not be pinched.
• The sheathing must not be damaged and must not have indentations or be embossed (with markings,

etc.) at the cable entry.

• The cable entry seal sleeve and washers must conform to the outside diameter of the cable.
• The minimum bending radius must not be below the accepted value.
• If using a cable which has been used before, a short piece must be peeled off when refitting it so that

the cable entry seal sleeve does not close around the cable at the same point again. If the outer sheath

of the cable is damaged, then replace the cable. Contact an ITT service shop.

• The voltage drop in long cables must be taken into account. The drive unit’s rated voltage is the

voltage measured at the terminal board in the upper part of the pump.

• The screened cable must be used according to the European CE requirements if a Variable Frequency

Drive (VFD) is used. For more information, contact your ITT representative (VFD-supplier).

Earthing (Grounding)

Electrical Hazard:

• You must earth (ground) all electrical equipment. This applies to the pump equipment, the driver, and

any monitoring equipment. Test the earth (ground) lead to verify that it is connected correctly.

• If the motor cable is jerked loose by mistake, the earth (ground) conductor should be the last

conductor to come loose from its terminal. Make sure that the earth (ground) conductor is longer