EC frameless DT 85 M ∅ 90 mm, brushless, 450 watt Dynamic Torque
M 1:4
Stock program Standard program Special program (on request)
Part Numbers
without Hall sensors
740953
Motor Data
Values at nominal voltage 1 Nominal voltage 2 No load speed 3 No load current 4 Nominal speed 5 Nominal torque
48 3280 266 2750 1810 11.6 11900 305 94.1 0.16 0.367 139 68.7 0.078 0.53 650
V
rpm mA rpm mNm mNm A A
6 Nominal current (max. continuous current)
7 Stall torque 8 Stall current 9 Max. efficiency
%
Characteristics 10 Terminal resistance phase to phase 11 Terminal inductance phase to phase
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
19 Thermal time constant winding 20 Thermal time constant motor 21 Ambient temperature 22 Max. winding temperature Mechanical data 23 Max. speed Thermal data 17 Thermal resistance housing-ambient 18 Thermal resistance winding-housing
n [rpm]
2.35 K/W 0.3 K/W
21 s 810 s
450 W
0 0 500 1000 2000 3000 4000
740953
-40…+100°C +155°C
Continuous operation C ontinuous operation with reduced thermal resistance R th2 50%
4000 rpm
Other specifications 29 Number of pole pairs 30 Number of phases 31 Weight of motor Weight of rotor
Intermittent operation Assigned power rating
10 3
741 g 98 g 643 g
M [mNm]
1500 2500
Weight of stator (stainless steel flange) Values listed in the table are nominal. Connection motor (Cable AWG 16) red Motor winding 1 black Motor winding 2 white Motor winding 3 Connection NTC (Cable AWG 24) purple NTC blue NTC Resistance 25°C: 5 kΩ ±1%, beta (25–85°C): 3490 K Comment For Torque control data, refer to "Installation Manual" available on maxon online shop.
Modular System
Details on catalog page 54
Sensor 523_TSX 85 MAG with Hall sensors
Motor Control 553_ESCON 70/10
557_ESCON2 Module 60/30 557_ESCON2 Compact 60/30 563_EPOS4 Module 50/15 567_EPOS4 Compact 50/15 567_EPOS4 70/15 568_EPOS4 Disk 60/8 CAN 568_EPOS4 Disk 60/8 EtherCAT
Variants
Aluminum flange (-143 g) on request Without flange: maxon integration on request
maxon EC motor 355
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