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M2QA Series IEC Low-voltageThree-Phase Induction Motors

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ContentABB Product Features4Outstanding Features of M2QA Motors4Summary5Standards6Mechanical Design6Insulation and Insulation Classes6Motors for Other Voltages7Bearings and Terminal Boxes7Rating Plate8Pulley Diameter8Permissible Loadings on the Shaft End8Permissible Radial Forces9Permissible Axial Forces9Mounting Arrangement IMB310Ordering Information11Explanation of the Product Code11Technical Data Table12Dimension Drawing18Bearing Seals21Select Cable Entry21M2QA Cast Iron Motors in Brief, Basic Design22M2QA Variant Code24ABB Motors reserves the right to change the design, technical specification and dimension without prior notice.

Outstanding Features ofM2QA MotorsHigh efficiency and energy saving in combination with highreliability reduces the operation costs.Advanced production technology assures accurate products.Motors are equipped with NSK or SKF bearings.Flexible design with choice of additional accessories fulfillsmost customers’ requirements.ABB Motors FeaturesHigh ReliabilityLow NoiseHigh EfficiencyHigh FlexibilityExcellent Consistency4 M2QA Series Low-voltage Three-phase Induction Motors ABB M2QA Motors

SummaryM2QA Series Low-voltageThree-phase InductionMotors (H71-H355)As the standard series of ABB M2000 family, High efficiencyassures energy savings, and high reliability reduces the faulty timeand the maintenance costs.The motors are designed andmanufactured according to European technology, includingfeatures such as low noise level and long life cycle. M2QA motorsare suitable for various environments and operate in a wide rangeof different industrial areas.ABB M2QA Motors M2QA Series Low-voltage Three-phase Induction Motors 5

StandardsMechanical DesignVoltage ranges of extra versatilityA wide range of voltages can be up to max. 690 V, for 50Hz and 60 Hz is available.Reliable windingsTo ensure long lifetime, the windings are made of thelatest available materials in class F protection andtemperature rise limited to class B(80K) in standardmotors.Strong corrosion protectionThe motors are made to withstand aggressiveenvironment as standard and they are designed for longlifetime. For motors with regreasable elements, theyhave strong and effective protection against corrosion.Bearings with high load capacityAll motors are provided with deep-groove ball bearings,the lifetime is extended. Cast iron motors in sizes 71-225are greased for life, and those in sizes 250-355 have aregreasing device as a standard.Totally enclosed fan cooled IP55 as standard,IP56 orIP65 as optionHeavy duty design, manufactured from extra corrosion resistantcast iron materials to be used in all kind of environment. Themotor is mechanically very strong and robust.Flexible cable entry directionTerminal boxes are mounted on the top of the motors,right orleft.Terminal boxes of motor size71-132 can rotate 4 90 , andthose of160-355can rotate2 180 . All are easy to refit.Powerful refit availableThe motors satisfy the requirements of a wide range ofenvironments and applications, such as improving protection,insulation level, regreasing facilities, dust-proof, sealing rings,protective roof are available.Low noise levelThe M2QA range has been designed to minimize motorsnoise levels by means of improving magnetic andelectrical design, ventilating condition, structuralassembling size and technology.Additional winding protectionPTC thermistors, thermal switches and anticondensationon request.Insulation and Insulation ClassesAccording to IEC 60085, insulating materials are divided into insulation classes. Each class has a designation corresponding tothe temperature that is the upper limit of the range of application of the insulating material under normal operating condition.The winding insulation of a motor is determined on the basis of the temperature rise in the motor and the ambient temperature.The insulation is normally dimensioned for the hottest piont in the motor at its normal rated output and at ambient temperature of 40 .Motors subjected to ambient temperatures above 40 will generally have to be derated. In most cases, the standard rated outputs ofmotors from ABB uses class F insulation systems, which, with temperature rise B, is the most common requirement among industrytoday.However, all the motors are designed with class Finsulation, which permits a higher temperature rise than class15513012010Hot spot temperature margin10Permissible temperature rise80B(*The mark is excluded). The motors, therefor, have agenerous over-load margin. If temperature rise to class F is105allowed, the outputs given in the tables can generally beincreased by about 12%.Temperature limits are according to standards. The extrathermal margin when using class F insulation with class Btemperature rise makes the motors more reliable.6 M2QA Series Low-voltage Three-phase Induction Motors ABB M2QA Motors40maximum ambient temperatureInsulation classMaximum winding temperature4040B130F155

Motors for Other VoltagesMotors wound for a given voltage at 50Hz can also be used for other voltage. Recalculation factors for current and torque are givenbelow, efficiency, power factor and speed remain. Approximately the same.Guaranteed values available on request.Motor wound for230VConnected to 011990100400V500V690V660V690V% of values at 400V. 50HzMotors wound for a given voltage at 60Hz canalso be used for other voltages. Approximaterecalculation factors for current and torque given arebeside; efficiency, power factor and speed remainapproximately the same.Guaranteed values available on request.Motor wound for460V575VConnected to 100Ts/TN90109100Tmax/TN90109100% of values at 460V. 60HzBearings and Terminal BoxesThe motors are normally fitted with single-row deep groove ball bearings as listed in the table below. Close-type bearing is provided asstandard for 71-255, open-type bearing for 250-355. Terminal boxes are mounted on top of the motor. The terminal box of motor sizes71 to 132 can be turned 4 x 90 and in motors sizes 160 to 355 rotated 2 x 180 . Degree of protection of the standard terminal box isIP55. The motors are supplied with 2 cable entries as a standard according to the table below.St andar dD- endbearing typeN-endCable entrymmTypeC32-M16 X 1.5250M26314C36214C32-M63 X 1.56204C32-M25 X 1.5250M4, 6, 86314C36214C32-M63 X 1.56205C32-M25 X 1.5280S26316C46316C42-M63 X 1.5Poles71M2, 4, 66202C3620280M2, 4, 6, 86204C390S2, 4, 6, 86205C390L2, 4, 6PolesStandardD-endCable entrymmbear ing t y peN- endType6205C36205C32-M25 X 1.5280S4, 6, 86316C36316C32-M63 X 1.5100L 2, 4, 6, 86206C36206C32-M32 X 1.5280M26316C46316C42-M63 X 1.5112M 2, 4, 6, 86207C36206C32-M32 X 1.5280M4, 6, 86316C36316C32-M63 X 1.5132S 2, 4, 6, 86208C36207C32-M32 X 1.5315S26316C46316C42-M63 X 1.5132M 2, 4, 6, 86208C36207C32-M32 X 1.5315S4, 6, 86319C36319C32-M63 X 1.5160M 2, 4, 6, 86309C36209C32-M40 X 1.5315M26316C46316C42-M63 X 1.5160L 2, 4, 6, 86309C36209C32-M40 X 1.5315M4, 6, 86319C36319C32-M63 X 1.5180M 2, 4, 6, 86310C36210C32-M40 X 1.5315L26316C46316C42-M63 X 1.5180L 2, 4, 6, 86310C36210C32-M40 X 1.5315L4, 6, 86319C36319C32-M63 X 1.52-M50 X 1.5355M26319MC46319MC42-M63 X 1.52-M50 X 1.5355M4, 6, 86322C36319C32-M63 X 1.56319MC46319MC42-M63 X 1.56322C36319C32-M63 X 1.5200L 2, 4, 6, 8225S4, 6, 86312C36212C36313C36213C3225M26313C36213C32-M50 X 1.5355L2225M4, 6,86313C36213C32-M50 X 1.5355L4, 6, 8*Note: see page 22-23 for detail.ABB M2QA Motors M2QA Series Low-voltage Three-phase Induction Motors 7

For motor size 160 to 355 the rating plate is in table formgiving values for speed, current and power factor for six voltages.M2QA160-355M2QA71-132Pulley DiameterWhen the desired bearing life has been determined, theminimum permissible pulley diameter can be calculated usingFR, as follows;71.9·10 ·K·PD n·F Rwhere:D diameter of pulley, mmP power requirement, kWn motor speed, r/minK belt tension factor, dependent on belt type and type of duty.A common value for V-belts is 2.5.FR permissible radial forcePermissible Loadings on the Shaft EndThe tables below give the permissible radial force in newton,assuming zero axial force. The values are based on normalconditions at 50 Hz and calculated bearing lives for motor size71 to 355 of 20000 hours and 40000 hours.Motors are foot-mounted IM B3 version with force directedsideways.In some cases the strength of the shaft affects the permissibleforces. At 60Hz the values must be reduced by 10%. Fortwo-speed motors, the values must be based on the higherspeed.Permissible loads of simultaneous radial and axial forces willbe supplied on request.8 M2QA Series Low-voltage Three-phase Induction Motors ABB M2QA Motors

Permissible Radial ForcesMotors sizes 71 to 35520000 hours Ball bearings2-pole40000 hours Ball .9979.4784.81126.4902.61242.7995.8112M 8.3805.11263.61019.11453.31172.01603.4 1293.1132S 38.9890.31444.91129.51650.21290.01824.8 61171.71672.01341.31848.8 1483.2160M 61.91602.32600.82021.12980.52316.23291.9 .93338.82086.91659.82632.42093.73016.82399.43331.9 2650.0180M 5--3017.22439.03453.92792.03810.1 .95381.73246.12680.24096.73382.64689.63872.15173.3 .6--5762.8 4526.4225M 43.93024.94596.23646.45273.34183.65790.9 4594.2250M 57.03309.75111.14169.65863.74783.56438.9 5252.8280S 61.83933.76007.74962.96888.05690.17569.1 6252.7280M 99.84014.86056.15065.66943.75808.17630.5 6382.5315S 6602.45627.19533.57882.010916.19025.1 545.4 7891.8315M 6677.15793.39647.88145.011047.29326.4 12173.2 10277.05297.94596.77655.66463.18766.37400.7 965938 4.7 12171.2 10275.35296.64595.67655.46462.98764.6--9657.9 8153.5355M 8280.06790.0 14060.0 11529.0 16089.0 13193.0--5612.04602.011100.09102.012741.0 10448.0--355L6865.0 14136.0 11592.0 16175.0 13264.0--5612.04652.011100.09213.012741.0 10575.0--8372.0FRIf the radial force is applied between points X0 and Xmax, thepermissible force F R can be calculated from the followingformula:FR FX0-X/E(FX0-Fxmax)E length of shaft extension in basic versionXmaxXX0Permissible Axial ForcesThe following tables give the permissible axial forces inNewton, assuming zero radial force. The values are based onnormal conditions at 50Hz with standard bearings and calculatedbearing life time of 20000 and 40000 hours.At 60Hz the values are to be reduced by 10%. For two-speedmotors, the values are to be based on the higher speed. Thepermissible loads of simultaneous radial and axial forces will besupplied on request.Given axial forces FAD, assumes D-bearing locked by means oflocking ring.FADFAZABB M2QA Motors M2QA Series Low-voltage Three-phase Induction Motors 9