3-phase Synchronous Motor


3-phase Synchronous Motor


Reversible power drive for actuators, pumps, label printing machines, medical and optical equipment, office machines, automatic vending machines, machine automation


MTR7 is a 48V 3-phase Synchronous Motor with power 5.8W, speed 250 rpm and torque 7.2 Ncm. It is a reversing synchronous motor with a permanent magnet rotor that is electrically reversible and due to its unique stator design it is moderately priced. The rotating field is produced with a phase-shift capacitor and double-stator with coils thus ensuring extremely quiet running.

Long life is guaranteed by the robust design (sintered bronze bearings, seIf centering type) The MTR7a is operated with single-phase AC current. The same motor version can be used at 50Hz and 60Hz. These motors can combined with Spur Gearboxes as per requirement. 

Standard Data
Motor type   Reversible synchronous
Ambient temperature operation °C -15 to +55
Ambient temperature storage °C -20 to +100
Thermal class °C 105
Electrical Enclosure IP 40
Connections   Flexible Leads 22 AWG, 200mm length; ends stripped 10 mm
Sense of rotation   Indicated by lead colour (red-CW & black ACW)
Life expectancy   3 years in continuous operation
Mounting   any position
HVT   As per standard IEC600341
Weight g 300
Rotor stalling   The motor can be stopped when voltage is applied, without being overheated
Rotor shaft   Hardened steel, ground, and polished
Bearings   Sintered bronze, self-lubricating
External dimension   Dia. 59 x 35 mm
Technical Data
Standard Motor voltage (V ) V 12 24 48 110 230
Operation capacitor (50 Hz)CN µF/VAC 56/40 15/50 3.9/100 0.68/250 0.18/400
Operation capacitor (60 Hz)CN µF/VAC 39/40 10/50 2.7/100 0.47/250 0.12/400
Lead colour (VN) Grey Blue Brown White Yellow
Tolerance of voltage % -10 to +15% of the rated voltage
Duty cycle % 100
Rated frequency Hz 50 60
Power output at rated voltage W 2.14 1.94
Speed Rpm 250 300
Running torque at rated voltage Ncm 7.2 6.2
Power consumption at rated voltage W 5.8 5
Detent Torque Ncm 1.3

Dimensional Drawing
Dimensional Drawing of Mechtex Synchronous Motor - MTR7a

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