EC-i 30 ∅ 30 mm, brushless, 75 watt High Torque
M 3:4
Stock program Standard program Special program (on request)
Part numbers
with Hall sensors
539487
539485 539486
539488 539489
Motor data (provisional) Values at nominal voltage 1 Nominal voltage
12
18
24
36
48
V
7940 454 6760 108 7.34 895 103 87.1
7950 303 6840 110 4.98 962 83.4 88.2 0.216 0.219 21.4 446 4.49 0.729 15.5
7950 227 6870 107 3.65 968 63.8 88.3 0.376 0.39 28.6 334 0.714 15.5 4.4
7950 151 6890 110 2.48 993 46.5 88.8 0.773 0.877 42.9 223 4.02 0.653 15.5
8210 119 7150 104 1.84 986 35.1 88.6 1.37 1.46 55.4 173 4.26 0.692 15.5
2 No load speed 3 No load current 4 Nominal speed 5 Nominal torque 7 Stall torque 8 Stall current 9 Max. efficiency
rpm mA rpm mNm mNm A A
6 Nominal current (max. continuous current)
%
Characteristics 10 Terminal resistance phase to phase 11 Terminal inductance phase to phase
0.117 0.0975 14.3 668 5.45 0.885 15.5
Ω
mH
12 Torque constant 13 Speed constant 14 Speed/torque gradient 15 Mechanical time constant
mNm/A rpm/V rpm/mNm
ms gcm2
Specifications 16 Rotor inertia
Operating range
Comments
Thermal data 17 Thermal resistance housing-ambient 18 Thermal resistance winding-housing
n [rpm]
9.01 K/W 2.46 K/W 31.3 s 1090 s +155 °C -40…+100 °C 0 mm 10 000 rpm 0.14 mm preloaded
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
75 W
0 2000 4000 6000 8000 10000
539487
Continuous operation C ontinuous operation with reduced thermal resistance R th2 50%
24 Axial play at axial load 25 Radial play
< 9.0 N > 9.0 N
Intermittent operation Assigned power rating
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
5 N 98 N 1300 N 25 N
M [mNm] 160
0 40 80 120
315–320_GP 32 S 380_GP 32 A 381_GP 32 C 391_GSW 30 HP Modular system Gearheads
Details on catalog page 56
4 3
Sensors
Control Electronics
420_ENX 16 EASY 421_ENX 16 EASY XT 432_ENX 16 RIO 436_ENX 16 EASY Absolute 437_ENX 16 EASY Absolute XT 438_ENX 22 EMT
443_DEC Module 50/5 447_ESCON2 Micro 60/5 449_ESCON2 Compact 60/2 449_ESCON2 Compact 60/5 454_EPOS4 Micro 24/5 455_EPOS4 Module 50/5 457_EPOS4 Compact 24/5 3-axes 455_EPOS4 Module 50/8 458_EPOS4 Compact 50/5 459_EPOS4 Compact 50/8 462_EPOS4 Disk 60/8 463_EPOS4 Disk 60/12 471_ESCON Module 50/4 EC-S 461_EPOS4 50/5 462_EPOS4 70/15
242 g
Values listed in the table are nominal. Connection motor (Cable AWG 20) red Motor winding 1 Pin 1 black Motor winding 2 Pin 2 white Motor winding 3 Pin 3 N.C. Pin 4 Connector Article number Molex 39-01-2040 Connection sensors (Cable AWG 26) yellow Hall sensor 1 Pin 1 brown Hall sensor 2 Pin 2 grey Hall sensor 3 Pin 3 blue GND Pin 4 green V Hall 4.5…24 VDC Pin 5 N.C. Pin 6 Connector Article number Molex 430-25-0600 Wiring diagram for Hall sensors see p. 73
200 maxon
© 2026 maxon. All rights reserved. April edition. Subject to change.
Made with FlippingBook Publishing Software