2.ZKIT (1.ZKT) low-voltage induction motor for excavators, conveyors and elevators in open-pit mining, 22–1450 kW

Country: Serbia · Model: 2.ZKIT (1.ZKT)

Squirrel-cage induction motor rated 22–1450 kW and 380–690 V for open-pit mining machinery. The 2.ZKIT series, formerly designated 1.ZKT, runs on rotary and bucket excavators, belt conveyors, spreaders and bucket elevators. The enclosed IP55 design is made for the dust and humidity of a quarry.

Designation: 2.ZKIT (1.ZKT)
Rotor type: squirrel-cage
Power: 22–1450 kW
Voltage / frequency: 380–690 V / 50 Hz, 60 Hz

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Technical specifications

Designation	2.ZKIT (1.ZKT)
Rotor type	squirrel-cage
Power	22–1450 kW
Voltage / frequency	380–690 V / 50 Hz, 60 Hz
Shaft height (frame)	200–710
Number of poles	2–6
Insulation class	F / B
Protection degree	IP55
Cooling	IC 411
Mounting	IM B3, B5, V1
Mounting dimensions	IEC 60072
Standard	IEC 60034-1

Specifications are taken from the manufacturer’s technical documentation. Updated 11/09/2026.

Description

Shaft heights from 200 to 710 cover both auxiliary machinery and the main drives of conveyor lines and rotary wheels. The motors have from 2 to 6 poles, run on 50 or 60 Hz and are cooled to scheme IC 411 by external cooling of the ribbed frame. Class F insulation used to class B gives a margin for the frequent starts and overloads typical of mining machines. Mounting IM B3, B5 or V1, mounting dimensions to IEC 60072, general requirements to IEC 60034-1. The manufacturer designs the product for temperatures down to −50 °C. The series is suitable for replacing drives once supplied from the USSR at coal strip mines and building-material quarries.

How to choose

For an exact selection, give the manufacturer the type of machine and mechanism, the duty, the required starting torque and the mounting dimensions of the old motor. If power above 1450 kW is needed, see ZKIE, 2.ZKIT and 2.RZKIT…ic6 at 400–2500 kW. For platforms with a 60 Hz supply there is 2.SRZKIT at 15–1500 kW, and class IE3 up to 1000 kW is covered by 3.ZKE.

Request a price and lead time

2.ZKIT (1.ZKT) low-voltage induction motor for excavators, conveyors and elevators in open-pit mining, 22–1450 kW. We reply within one business day.

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

FAQ

What does the designation 2.ZKIT (1.ZKT) mean?

1.ZKT is the previous designation of the series and 2.ZKIT the current one. These are squirrel-cage induction motors rated 22–1450 kW for open-pit mining.

What voltage and frequency are 2.ZKIT motors designed for?

For 380–690 V and a frequency of 50 or 60 Hz.

Is the motor protected from dust and moisture in a quarry?

The motor is enclosed, with protection degree IP55 and IC 411 cooling. This takes into account heavy dust, humidity and temperature swings.

Can a Soviet-made excavator or conveyor motor be replaced?

Yes, the series is used for such replacement. The machine type, duty, starting torque and mounting dimensions are needed. Mounting versions IM B3, B5 and V1 to IEC 60072.

What are the shaft height and number of poles?

Shaft height 200–710, number of poles from 2 to 6.