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3.ZKE — low-voltage IE3 induction motor, 18.5–1000 kW

ELECTRIC MOTORS

3.ZKE — low-voltage IE3 induction motor, 18.5–1000 kW

Country: Serbia · Model: 3.ZKE

The 3.ZKE series covers three-phase squirrel-cage induction motors of 18.5–1000 kW in energy efficiency class IE3 per IEC 60034-30. The machines are designed for low-voltage networks of 230–690 V at 50 or 60 Hz and are installed on pumps, fans, compressors, conveyors, crushers and mills in continuous duty.

Designation
3.ZKE
Energy efficiency class
IE3 per IEC 60034-30
Rotor type
squirrel-cage
Power
18.5–1000 kW
Request a quoteAll specifications

Technical specifications

Designation3.ZKE
Energy efficiency classIE3 per IEC 60034-30
Rotor typesquirrel-cage
Power18.5–1000 kW
Voltage / frequency230–690 V / 50 Hz, 60 Hz
Shaft height (frame size)200–500
Number of poles2–8
Insulation classF / B
Protection degreeIP55
CoolingIC 411
MountingIM B3, B5, V1
Connection dimensionsIEC 60072
StandardIEC 60034-1

Specifications are taken from the manufacturer’s technical documentation. Updated .

Description

The frame sizes have a shaft height from 200 to 500, and the 2-, 4-, 6- and 8-pole versions give synchronous speeds from 3000 to 750 rpm at 50 Hz. The enclosure is closed with protection degree IP55. Cooling to scheme IC 411 means that a fan on the shaft blows over the ribbed frame from outside, while the internal volume is isolated from the environment. The winding has class F insulation with class B temperature rise, hence a life reserve at rated load and in hot weather. Mounting versions are IM B3 foot-mounted, IM B5 flange-mounted and IM V1 vertical with the flange down. Connection dimensions to IEC 60072 make the 3.ZKE interchangeable with European motors of the same frame size, and the general requirements of the series are set by IEC 60034-1. According to the manufacturer, the motors withstand both frosts down to −50 °C and a hot coastal climate, so they are installed in mining and metallurgy, water utilities, and at oil refineries and chemical plants.

How to choose

For the 3.ZKE the power and speed of the machine are decisive, and when replacing an existing motor also the shaft height, mounting version and shaft fit dimensions. For pumps and fans with frequency converter control the 2.RZKIT at 18.5–2500 kW is more suitable. Cranes, mills and machines with heavy starting need a wound rotor of the (2)ZPD / 2.ZPDI series at 45–1800 kW, and for offshore oil platforms the 2.SRZKIT at 15–1500 kW has been developed.

Request a price and lead time

3.ZKE — low-voltage IE3 induction motor, 18.5–1000 kW. We reply within one business day.

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Or email office@usk.ua or call +38 (044) 339-50-20.

FAQ

What synchronous speeds does the 3.ZKE series have?

The motors are made with 2, 4, 6 and 8 poles, which at 50 Hz gives 3000, 1500, 1000 and 750 rpm. On a 60 Hz network the speed is proportionally higher.

By which standard is the IE3 class of the 3.ZKE motors defined?

The energy efficiency class IE3 is defined per IEC 60034-30. On pumps and compressors in continuous duty, the electricity savings over the service life exceed the difference in motor price several times.

Can the 3.ZKE motor be installed vertically?

Yes, besides the foot-mounted IM B3 and flange-mounted IM B5 versions there is the vertical IM V1 with the flange down for vertical pumps and mixers.

Is the 3.ZKE suitable for a dusty workshop?

Protection degree IP55 shields the machine from dust and water jets, and the closed cooling IC 411 does not let outside air inside. Outdoors it is advisable to cover the motor with a canopy against direct rain and snow.

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