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5ABB LV Motors/Catalouge BU/M2QA Motors GB12-03/TH

Motors for other voltages

Motors wound for a given voltage at 50Hz can also be used for othervoltage. Recalculation factors for cument and torque are given below ;power factor and speed remain approximately the same. Guaranteed

values available on request.

ABB Motors reserves the right to change the design, technical specification anf dimensions without prior notice.

Bearings and terminal boxes

The motors are normally fitted with single-row deep groove ball bearingsas listed in the table beside.

Terminal boxes are mounted on top of the motor. The terminal box ofmoter sizes 71 to 132 can be turned 4 x 90 and in motors sizes 160 to355 rotated 2 x 180.

Degree of protection of the standard terminal box is IP55. The motorsare supplied with 2 cable entries as a standard according to the tablebelow.

Terminal boxes for motor sizes 71-132

Motor sizes 71-132

Terminal boxes for motor sizes 160-250 Terminal boxes for motor sizes 280-355

Motor sizes 160-225 Motor sizes 250 Motor sizes 280-355

Moters wound for certain voltage at 50 Hz can be operated at 60 Hz,without modification, suuject to the following changes in their data.

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Permissible loadings on the shaft end

The tabies below give the permissble radial force in Newtons,assumingzero axial force. The values are based on normal conditions at 50 Hzand calculated bearing lives for motor sizes 71 to 355 of 20000 hours

and 40000 hours.

Motors are foot-mounted IM B3 version with force directed sideways. Insome cases the strength of the shaft affects the permissible forces.

At 60 Hz the values must be reduced by 10%. For two-speed motors,thevalues must be based on the hinger Speed.

Permissible loads of simultaneous radial and axial forces will be suppliedon request.

Permissible radial forcesMotor size 71 to 355

If the radial force is applied between points Xo and Xmax,the permissible force FR can calculatedform the following formula: FR=Fxo-X/E (Fxo-Fxmax) E=length of shaft extension in basic version

Permissible axial forces

The Following tables giive the permissible axial forces in Newton,assuming zero radial force. The values are based on normal conditionsat 50 Hz with standard bearings and calculated bearing lives of 20000

and 40000 hours.

At 60 Hz the Values are to be reduced by 10% For two-speed motors,thevalues are to br based on the higher speed. The permissible loads of

simultaneous radial and axial forces will be supplied on request.

Given axial forces FAD,assumes D-bearing locked by means of lockingring.

Mounting arrengement IM B3

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Sample orderWhen placing an order,the motor type,size and product code must bespecified. The product code of the motor is composed in various way,inaccordance with the following examples.

A Motor typeB Motor sizeC Product codeD Mounting arrangement code

E Voldtage and frequency codeF Generation codeG Variant codes

Positions 1 to 4M2QA = Totally enclosed fan cooled squirel cage motor with cast ironframePositions 5 and 6IEC frame07 = 71 13 = 132 25 = 25008 = 80 16 = 160 28 = 28009 = 90 18 = 180 31 = 31510 = 100 20 = 200 35 = 35511 = 112 22 = 225

Positions 7Speed (pole pairs)1 = 2 poles 6 = 12 poles2 = 4 poles 7 = >12 poles3 = 6 poles 8 = Two-speed motors4 = 8 poles 9 = Multi-speed motors

Positions 8 to 10Running number series

Positions 11-(dash)

Positions 12Mounting arrangementA = Foot-mounted,top-mounted terminal boxR = Foot-mounted,terminal box on RHS,seen from D-endL = Foot-mounted,terminal box on LHS,seen from D-endB = Flange-mounted,large flangeC = Flange-mounted,small flange size (71-112)H = Foot-and flange-mounted

Positions 13Voltage and frequency codeSee tables on appropriate page

Positions 14Generation codeA, B, C, ...

Positions 15+(plus)

Positions 16Variant codesThe product code must be,if need,followed by variant codes:Please see pages 6-13.

Rating plate

For motor sizes 71 to 132 the rating plate gives one current value for thevoltage area. That is the highest current that can occur within the voltagearea with the given output.

For motor sizes 160 to 355 the rating plate is in table form giving valuesfor speed, current and power factor for six voltages.

Code letters for supplementing the product code

Explanation of the product code (C,D,E,F) :

Ordering information

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Totally enclosed squirrel cage

three phase motors, cast iron frame

IP55 IC411

Insulation class F

Temperation rise class B

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Totally enclosed squirrel cage

three phase motors, cast iron frame

IP55 IC411

Insulation class F

Temperation rise class B