IEC 71 · 230/400 V
Representative model from frame 71 dimensions
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0.37kWRated output · 50 Hz
1410rpmRated speed
71%Efficiency, full load
2.5NmRated torque
1.11ACurrent at 400 V
0.68Power factor
6.5kgWeight, B3
1.8× MNStarting torque
Performance · 50 Hz, tested values
| Output | 0.37 kW |
|---|---|
| Poles · synchronous speed | 4 · 1500 rpm |
| Rated speed | 1410 rpm |
| Rated torque MN | 2.5 Nm |
| Current at 230 V | 1.92 A |
| Current at 400 V | 1.11 A |
| Current at 690 V | – |
| Current at SF 1.15, 400 V | 1.2 A |
| Efficiency 100 / 75 / 50 % | 71 / 69 / 63 |
| Power factor 100 / 75 / 50 % | 0.68 / 0.57 / 0.45 |
| Efficiency class | – (IEC 60034-30-1) |
| Locked-rotor torque MA/MN | 1.8 |
|---|---|
| Starting current IA/IN | 4 |
| Breakdown torque MK/MN | 2.2 |
| Pull-up torque MS/MN | 1.6 |
| Rotor inertia J | 0.00097 kgm² |
| Sound pressure LPA at 1 m | 38 dB(A) |
| Insulation | Class F, temperature rise class B |
| Enclosure · cooling | IP55 · IC411 TEFC |
| Ambient | −20 °C to +40 °C |
| Service factor | 1.15 at 400 V 50 Hz (S1) |
| Bearings DE / NDE | 6003ZZ / 6003ZZ |
Torque–speed curve indicative
Drawn through the catalogue points MA, MS, MK and MN. Request the tested curve for your application.
Part-load performance
Efficiency determined to IEC 60034-2-1. Values on a 400 V winding (230 V for single-phase), subject to IEC tolerances.
Dimensions · IM B3, frame 71
Schematic outline for orientation, not to scale for manufacture. Request the certified drawing (PDF / DXF / STEP) with your enquiry.
| AFoot hole spacing, end | 112 mm |
|---|---|
| BFoot hole spacing, side | 90 mm |
| CShaft shoulder to foot hole | 45 mm |
| HShaft centre height | 71 mm |
| KFoot hole diameter | 7 mm |
| LOverall length | 238 mm |
| ACBody diameter | 140 mm |
| HDOverall height | 186 mm |
| DShaft diameter | 14 mm |
| EShaft length | 30 mm |
| MFlange B5 · pitch circle | 130 mm |
| NFlange B5 · spigot | 110 mm |
| PFlange B5 · outside diameter | 160 mm |
| SFlange B5 · hole diameter | 10 mm |
Mountings B3, B5, B14, B35 and B34 on every rating. Shaft tolerance to IEC 60072. NEMA frames 56C to 256T built to MG 1 on request.
Documents & next steps
PDF
RFQ
DWG
Datasheet
EMPD-DS-IE-01 · Rev 2.1
Request a quote
Model EM2-71-4-0.37 filled in for you
Certified drawing
PDF, DXF or STEP on request
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