Low and high voltage squirrel cage induction motors

Low and high voltage squirrel cage induction motors, of cooling type IC 511, are part of MENZEL’s tailor-made product range for your industrial applications

MENZEL produces low, medium and high voltage squirrel cage motors of all cooling types. According to the industrial application, we deliver open-circuit ventilated (IC 01 + IC 06), surface-cooled (IC 411 + IC 416) or pipe-cooled (IC 511) motors and squirrel cage motors with air-air (IC 611 + IC 616 + IC666) or air-water cooling (IC 81W + IC 86W) around the world.

The housing design or IC 511 cooling was previously a widely-used standard design for low and high voltage three-phase squirrel cage motors. However, it has gradually been replaced by more modern cooling types such as IC 411 and IC 611, MENZEL Elektromotoren still builds squirrel cage motors of the old cooling type, IC 511, as these are still the first choice for industrial applications, due to their various advantages.

Standard designs of IC 511 three-phase squirrel cage motors

Pipe-cooled squirrel cage induction motor

Construction types: B3 and V1
Protection classes: IP 55
For grid and inverter operation
Voltage: from 380 V to 13800 V
Power range: up to 4000 kW
Frame size: from 500 to 1000
Terminal box: generally possible
Motor housing: Welded steel
Thermal utilization: F/B

MENZEL specializes in producing special custom-made products for all kinds of industrial applications. If you are looking for drive solutions in the field of pipe-cooled squirrel cage motors (IC 511), please do not hesitate to contact us.

Available voltage ratings for three-phase squirrel cage motors

MENZEL supplies three-phase squirrel cage motors for various nominal voltages. We can implement all special voltages or deviating voltage tolerances on request.

Nominal voltage at 50 Hz

Low voltage: 380 V, 400 V, 500 V, 690 V
Medium and high voltage: 3.000 V, 3.300 V, 5.000 V, 5.500 V/ 6.000 V, 6.300 V, 6.600 V, 10.000 V, 10.500 V, 11.000 V

Nominal voltage at 60 Hz

Low voltage: 380 V, 400 V, 440 V, 480 V, 500 V, 525 V, 575 V, 690 V
Medium and high voltage: 2.300 V, 4.160 V, 6.000 V, 6.600 V, 11.000 V, 13.200 V, 13.800 V

Advantages of our IC 511 low and high voltage squirrel cage induction motors

Robust motor design with round, smooth surface

Resistant to external influences, due to torsion-resistant welded steel housing

Flat construction height and reduced overall length

Long machinery lifespan

High load capacities

Vibration resistant

Excellent, simultaneous air cooling

No blockages in the cooling pipes

Low voltage squirrel cage induction motor IC 511

IC 511 squirrel cage induction motors – Characteristics

For IC 511 squirrel cage induction motors, the cooling pipes are wound symmetrically around the laminated core. This construction type offers a whole spectrum of advantages: Falling materials simply slide off the smooth, rounded surface. Unlike with other cooling types, the cooling fins cannot be blocked.

In addition, the distribution of the cooling pipes or cooling tubes around the laminated core leads to a generally flat overall height for motors of cooling type IC 511, which is why such motors are ideal substructures for various machines. Their short overall length makes the motors more vibration-resistant.

Due to the use of torsionally rigid welded steel housing, low and high voltage squirrel cage motors of cooling type IC 511 are also ideal for use in harsh conditions with load shocks and vibrations. The generously-sized roller bearings of IC 511 three-phase squirrel cage motors enable high load motor capacities, and ensure a long lifespan.

Because IC 511 squirrel cage motors are no longer standard in Europe today, it can be hard for operators to find a replacement for old machines of this construction type. Complex renovation work on the foundations and connectors, which would allow the installation of a modern standard motor, is often not possible.

The creation of an exact replica of the old motor, with the exact same mechanical and electrical features and connectors, in the exact same places, requires the expertise of engineers and electricians. MENZEL specializes in customer-specific squirrel cage motors. In addition, we are characterized by our particularly fast delivery of replicas and special products – regardless of where in the world a low or high voltage motor in an old design is needed.

MENZEL is able to meet even the most unusual special requirements within a short period of time – and can also provide replicas of unconventional construction types such as IC 511, where necessary.

The currently conventional rib-cooled three-phase squirrel cage motors or motors with air-air heat exchangers have great standardization potential. Their production permits the use of cast iron housing or simple welded housing. However, hand-welded housing for construction type IC511 are designed in a complex process.

Nevertheless, the IC-511 design is still unbeatable for a number of nice applications. These include heavy-duty applications, belt drives and all applications for which a reduced overall height is essential.

Three-phase squirrel cage motors for these application must be able to withstand high load capacities, and be relatively resistant to vibrations and tremors. MENZEL pipe-cooled IC 511 cage motors can do just that. They have an excellent air cooling capacity, and are protected against falling material due to their rounded, hand-welded surfaces.

Typical applications of pipe-cooled IC 511 electric motors

User industries for IC 511 three-phase squirrel cage motors:

Mining
Power plants
Cement industry
Raw material extraction, etc.

Typical applications of IC 511 squirrel cage motors:

Heavy-duty applications
Conveyor belt drive
Fan drives
Kneader drives, etc.

Example reference projects

6000 V three-phase squirrel cage motor in powerplant that drives conveyor belt

6000 V three-phase squirrel cage motors as conveyor drive in coal power plant

6000 VSquirrel Cage (IC 511)Motors for power plantsMotor for conveyors

learn more

The pipe cooling principle

The pipe or tube cooling principle for IC 511 motors ensures particularly efficient, uniform cooling, because the cooling pipes are wound symmetrically around the laminated core. The primary and secondary coolants are moved by fans on the motor shaft.

The big advantage of the straight airflow through the smooth cooling pipes is the extensive self-cleaning of the pipes due to the external coolant flow. As a result, the motors are less susceptible to the blocking of the cooling system.

Flow pattern sqirrel cage motor with IC 511 pipe cooling — IC 511

Are you looking for low or high voltage squirrel cage motors with a particular construction and cooling type?
MENZEL manufactures according to customer specifications.

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Low and high voltage squirrel cage induction motors

Standard designs of IC 511 three-phase squirrel cage motors