Delta 40-530 Specifications download pdf (Page 14)

Connecting to electricity supply

Wiring for single-speed drive

Motors up to 2.2 kW usually have direct startup,

whereas a star-delta circuit is usual as of 3 kW.

Wiring for two-speed drive with 1:2 ratio

(Dahlander winding)

For example, for 1500/3000 rpm or 750/1500 rpm

Wiring for two-speed drive

(2 separate windings)

For example, for 1000/1500 rpm or 750/1000 rpm

Wiring for three-speed drive

(2 separate windings, 1 is a Dahlander winding)

For fan drives with speeds of 750/1000/1500 rpm or

8/6/4-pole; 750/1500 rpm with Dahlander winding.

Wiring for three-speed drive

(2 separate windings, 1 is a Dahlander winding)

For fan drives with speeds of 500/1000/1500 rpm or

8/6/4-pole; 500/1000 rpm with Dahlander winding.

Contactor control

Wiring of the winding phases

Wiring at terminal board

The ends of the three

winding phases connect to

the Y/delta switch

Delta circuit

Y-circuit

Y/delta switch

Low speed High speed

Contactor control

Pole changer

Low speed

High speed

Contactor control Pole changer

Match the winding layout for multi-speed output to a torque curve for

fan-drive configurations

Contactor control

Pole changer

Winding configuration

Pole changer

500 min

-1

Winding configuration

1000 min

-1

1500 min

-1

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Delta 40-530 Specifications Page 14

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