EC-4pole 32 ∅ 32 mm, brushless, 480 watt Heavy Duty – for applications in oil
M 1:2
Stock program Standard program Special program (on request)
Part numbers
A with Hall sensors B sensorless
397799 397800
Motor data (provisional)
Values at nominal voltage and ambient temperature °C 1 Nominal voltage V 2 No load speed rpm 3 No load current mA 4 Nominal speed1 rpm 5 Nominal torque1 mNm 6 Nominal current (max. continuous current) A 7 Stall torque mNm 8 Stall current A 9 Max. efficiency % Characteristics 10 Terminal resistance phase to phase Ω 11 Terminal inductance phase to phase mH 12 Torque constant mNm/A 13 Speed constant rpm/V 14 Speed / torque gradient rpm/mNm 15 Mechanical time constant ms 16 Rotor inertia gcm2 1Values for operation in thermal equilibrium. Thermal data Specifications
25 48
100 48 6630 222 4420 762 10.9 2520 36.7 85 1.31 0.298 68.7 139 2.65 3.88 140
150 48 6750 212 4700 596 8.75 2150 31.9 85 1.51 0.298 67.4 142 3.16 4.64 140
200 48 6860 216 5340 379 5.78 1860 28.1 84 1.71 0.298 66.2 144 3.71 5.45 140
6420 482 4670 804 11.4 3350 47.5 1.01 0.298 70.5 135 1.94 2.85 140 82
Operating range
Comments
Continuous operation In observation of above listed thermal resistance (lines 17 and 18) and above listed ambient temperature, the maximum permissible winding temperature will be reached during continuous operation = thermal limit. Short term operation The motor may be briefly overloaded (recurring). Assigned power rating This motor contains leaded solder. It therefore does not fulfill the requirements for the permit- ted maximum concentration of hazardous substances in accordance with the EC directive 2011/65/EC (RoHS) for all applications. The motor may therefore only be used for devices that are not subject to this directive. Reference medium: Shell Tellus oil T32 Operation in oil of different viscosity will affect the motor data. *The Hall sensors in this motor are rated for ambient temperatures up to 150°C. The motor with Hall sensors is fully tested at 200°C in the final inspection. Nevertheless, the Hall sensors may temporarily fail below 200°C under certain conditions. Notice
n [rpm]
TA = 25°C TA = 100°C TA = 150°C TA = 200°C
17 Thermal resistance housing-ambient 18 Thermal resistance winding-housing
0.3 K/W 0.53 K/W
19 Thermal time constant winding 20 Thermal time constant motor 21 Ambient temperature* 22 Max. winding temperature Mechanical data (preloaded ball bearings) 23 Max. speed
18.4 s 129 s
12000 9000 6000
-55…+200°C +240°C
0 mm 12 000 rpm 0.14 mm preloaded 16 N 80 N 3000 N
24 Axial play at axial load 25 Radial play
< 20 N > 20 N
3000
200 400 600 800 M [mNm] 4.0 I [A] 8.0 12.0 16.0
26 Max. axial load (dynamic) 27 Max. force for press fits (static) (static, shaft supported) 28 Max. radial load, 5 mm from flange Other specifications 29 Number of pole pairs 30 Number of phases 31 Weight of motor Connection A, motor cable PTFE (AWG 14) red Motor winding 1 black Motor winding 2 white Motor winding 3 Connection A, sensors cable PTFE (AWG 24) green V Hall 4.5…24 V blue GND red Hall sensor 1 black Hall sensor 2 white Hall sensor 3 Connection B, motor cable PTFE (AWG 14) red Motor winding 1 black Motor winding 2 white Motor winding 3 Wiring diagram for Hall sensors see p. 67
75 N
Application
General – extreme temperature applications – vibration tested (according to MIL-STD810F/Jan2000 Fig. 514.5C-10) – operation in oil and high pressure (only minimal lubrication, therefore use under rated ambient conditions
2 3
860 g
is not suggested) Oil & Gas Industry – oil, gas and geothermal wells
Gear 434_GP 32 HD 442_GP 42 HD Modular system
Details on catalog page 52
maxon EC motor 297
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