Main range compatibilityLexium 28 product or component typeServo motor device short nameBCH2 Complementary maximum mechanical speed3000 rpm [Us] rated supply voltage220 V network number of phasesThree phase continuous stall current19.68 A continuous stall torque28.65 N.m for LXM28... at 22.9 A, 220 V, three phase continuous power4500 W peak stall torque71.62 N.m for LXM28... at 22.9 A, 220 V, three phase nominal output power4500 W for LXM28... at 22.9 A, 220 V, three phase nominal torque28.65 N.m for LXM28... at 22.9 A, 220 V, three phase nominal speed1500 rpm for LXM28... at 22.9 A, 220 V, three phase maximum current Irms57.6 A for LXM28... at 4.5 kW, 220 V maximum permanent current22.8 A product compatibilityLXM28... servo drive motor at 4.5 kW, 220 V, three phase shaft endSmooth shaft shaft diameter35 mm shaft length79 mm feedback type20 bits multi turn absolute encoder holding brakeWith holding torque48 N.m for built-in mounting supportAsian standard flange motor flange size180 mm electrical connectionMIL connector torque constant1.46 N.m/A at 20 °C back emf constant88 V/krpm at 20 °C rotor inertia74 kg.cm² stator resistance0.199 Ohm at 20 °C stator inductance3.8 mH at 20 °C stator electrical time constant19.1 ms at 20 °C maximum radial force Fr1200 N 1500 rpm maximum axial force Fa497 N brake pull-in power49.6 W type of coolingNatural convection length279 mm number of motor stacks3 centring collar diameter114.3 mm centring collar depth4 mm number of mounting holes4 mounting holes diameter13.5 mm circle diameter of the mounting holes200 mm distance shaft shoulder-flange4 mm product weight28 kg Environment IP degree of protectionIP65 IM B5, IM V1IP50 IM V3 ambient air temperature for operation0...40 °C
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Dimensions DrawingsDimensionsDimensions of Motor
L (without holding brake)
L (with holding brake)
Performance CurvesTorque/Speed Curves with 230 V Three Phase Supply Voltage
Servo Motor with LXM28AU45●●● Servo Drive1 :Peak torque2 :Continuous torque