Slip ring motors NMK
ABB Motors NMK
Modular slip-ring motors, type NMK
Availability for heavy load inertia applications . Slip ring motors: ABB expertise provides the best solutions to drive the industry

Type designation
The motors’ compact size and light weight reduces required installation space and equipment to lift the motor on site, leading to lower installation costs. NMK 400L4A 800 KW 6000V ABB high voltage induction motors 1481 rpm 50HZ NMK 400L4A 900 KW 6000V ABB high voltage induction motors 1482 rpm 50HZ NMK 450L4A 1000 KW 6000V ABB high voltage induction motors 1485 rpm 50HZ

Enclosure and cooling
Standard combinations for NMK motors are IC611/IP55 and IC81W/IP55, other cooling methods of IC616, IC86W, etc. High power density of our slip-ring motors means the power required is achieved in a smaller frame size.

Technical data
NMK Slip-ring motors are an ideal solution for applications which require high starting torque and low starting current. They are especially suitable for heavy load inertia applications like mill drives or situations where network conditions are weak.
Slip-ring modular motors from ABB
Reliability and high efficiency
Reliability and high efficiency of ABB slip-ring
motors reduce the downtime and operating costs
of your processes, minimizing cost of ownership.
The high efficiency is ensured by proven motor
design, use of high quality materials, and advanced
ventilation technology. The fully braced and vacuum
impregnated windings increase reliability in your
heavy-duty operations.
Dimension Specifications
Slip-ring motors are an ideal
solution for applications which
require high starting torque and
low starting current. Preliminary dimensions of standard configuration in the list.
Optional solutions e.g. NEMA oversize main terminal box, IM 1002, sleeve bearings, with BLD, etc. on request. Sleeve bearings with oil circulation are default for 4 pole machines on frame size 710 mm.
Accurate dimension drawing will be given on customized solution at the quotation phase.
1 < UN ≤ 6.6 kV, IM 1001, IC611 / IP55
- Output power
- Frame sizes
- Voltage
6.6 < UN ≤ 11 kV, IM 1001, IC611 / IP55
- Cooling
- Protection
- Mounting
- Bearings
- Insulation class
All Voltages IM 1001, IC81W / IP55
- up to 10,000 kW
- 400 to 710
- 2.3 to 13.8 kV
ABB slip-ring modular motor
Type NMK.
Contact Us , Your reliable partner.
ABB’s slip-ring motors minimize mechanical stress at starting, increasing the lifetime of your driven equipment. They provide maximized availability and high torque over the entire speed range.