Lafert IE2 Motors – AMHE, AMEE and Two-Speed Motors
Lafert AMHE (2 and 4 pole) and AMEE (6 pole) IE2 high efficiency three-phase motors, 0.12 – 22 kW, aluminium frame 56 – 160, rated for 400 V 50 Hz and 460 V 60 Hz. Plus AM two-speed motors for fans and machinery.
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Where IE2 is – and is not – the right choice
Saudi Arabia requires IE3 for three-phase motors from 0.75 to 375 kW (SASO 2893): choose Lafert IE3 or IE4 there. IE2 remains the requirement for motors below 0.75 kW in the EU and is used for replacements, machinery for export and markets without an IE3 rule. Check your project specification or see the efficiency class guide.
AMHE / AMEE electrical data – 400 V 50 Hz
Models marked * are higher-output (progressive) motors. AMHE is IE2 at 400 V 50 Hz and 460 V 60 Hz; data for 60 Hz on request.
AMHE 2 pole – 3000 rpm (28 models)
| Type | kW | rpm | In @400 V (A) | IE2 η 100% | Weight (kg) |
|---|---|---|---|---|---|
| AMHE 56Z BA 2 | 0.12 | 2650 | 0.4 | 53.6% | 3.5 |
| AMHE 56Z CA 2 | 0.18 | 2660 | 0.7 | 60.4% | 3.4 |
| AMHE 63Z AA 2 | 0.18 | 2720 | 0.6 | 60.4% | 3.6 |
| AMHE 63Z BA 2 | 0.25 | 2790 | 0.8 | 64.8% | 4.1 |
| AMHE 63Z CA 2* | 0.37 | 2750 | 1.1 | 69.5% | 4.4 |
| AMHE 71Z XA 2 | 0.37 | 2810 | 1.0 | 69.5% | 5.8 |
| AMHE 71Z YA 2 | 0.55 | 2780 | 1.3 | 74.1% | 6.2 |
| AMHE 71Z AA 2* | 0.75 | 2865 | 1.9 | 79.4% | 8.2 |
| AMHE 80Z AA 2 | 0.75 | 2900 | 1.7 | 80.5% | 9.5 |
| AMHE 80Z BA 2 | 1.1 | 2880 | 2.5 | 81.5% | 11.1 |
| AMHE 80Z CA 2* | 1.5 | 2880 | 3.4 | 82.4% | 13.5 |
| AMHE 90S AA 2 | 1.5 | 2880 | 3.2 | 82.8% | 14.0 |
| AMHE 90L CA 2 | 2.2 | 2860 | 4.4 | 84.0% | 16.0 |
| AMHE 90L DA 2* | 3 | 2880 | 6.1 | 85.6% | 18.0 |
| AMHE 100L AA 2 | 3 | 2920 | 5.9 | 85.5% | 22.8 |
| AMHE 100L BA 2* | 4 | 2920 | 7.8 | 86.1% | 22.8 |
| AMHE 112M AA 2 | 4 | 2940 | 7.6 | 86.8% | 27.4 |
| AMHE 112M BA 2* | 5.5 | 2920 | 10.4 | 87.3% | 34.0 |
| AMHE 112M CA 2* | 7.5 | 2900 | 14.2 | 88.3% | 36.0 |
| AMHE 132S YA 2 | 5.5 | 2900 | 10.2 | 87.9% | 46.0 |
| AMHE 132S ZA 2 | 7.5 | 2900 | 13.8 | 88.4% | 53.0 |
| AMHE 132M ZA 2 | 9.2 | 2920 | 16.9 | 90.0% | 58.0 |
| AMHE 132M RA 2* | 11 | 2920 | 19.8 | 89.7% | 58.0 |
| AMHE 132M TA 2* | 15 | 2920 | 27.0 | 90.3% | 64.0 |
| AMHE 160M YA 2 | 11 | 2930 | 20.4 | 90.0% | 77.0 |
| AMHE 160M ZA 2 | 15 | 2930 | 27.2 | 90.8% | 87.1 |
| AMHE 160L ZA 2 | 18.5 | 2935 | 33.3 | 91.2% | 97.5 |
| AMHE 160L TA 2* | 22 | 2935 | 38.6 | 91.5% | 108.7 |
AMHE 4 pole – 1500 rpm (21 models)
| Type | kW | rpm | In @400 V (A) | IE2 η 100% | Weight (kg) |
|---|---|---|---|---|---|
| AMHE 63Z AA 4 | 0.12 | 1330 | 0.4 | 59.1% | 3.3 |
| AMHE 63Z BA 4 | 0.18 | 1345 | 0.6 | 64.7% | 4.1 |
| AMHE 63Z CA 4* | 0.25 | 1356 | 0.9 | 68.5% | 4.2 |
| AMHE 71Z AA 4 | 0.25 | 1390 | 0.7 | 68.5% | 5.7 |
| AMHE 71Z BA 4 | 0.37 | 1410 | 1.0 | 72.7% | 6.0 |
| AMHE 71Z CA 4* | 0.55 | 1410 | 1.5 | 77.1% | 7.3 |
| AMHE 80Z XA 4 | 0.55 | 1422 | 1.5 | 77.1% | 8.2 |
| AMHE 80Z AA 4 | 0.75 | 1430 | 1.8 | 80.2% | 11.0 |
| AMHE 90S AA 4 | 1.1 | 1430 | 2.5 | 82.5% | 18.0 |
| AMHE 90L BA 4 | 1.5 | 1430 | 3.4 | 83.0% | 19.0 |
| AMHE 100L AA 4 | 2.2 | 1450 | 5.1 | 85.1% | 22.4 |
| AMHE 100L BA 4 | 3 | 1440 | 6.5 | 86.4% | 26.5 |
| AMHE 112M AA 4 | 4 | 1450 | 8.5 | 87.1% | 30.4 |
| AMHE 132S AA 4 | 5.5 | 1455 | 10.9 | 87.7% | 45.0 |
| AMHE 132M BA 4 | 7.5 | 1460 | 14.6 | 88.7% | 55.0 |
| AMHE 132M CA 4 | 9.2 | 1460 | 18.0 | 89.3% | 65.0 |
| AMHE 132M DA 4* | 11 | 1455 | 21.8 | 89.8% | 67.0 |
| AMHE 160M AA 4 | 11 | 1470 | 22.0 | 91.3% | 90.0 |
| AMHE 160L BA 4 | 15 | 1460 | 29.0 | 91.7% | 100 |
| AMHE 160L CA 4* | 18.5 | 1460 | 35.2 | 91.8% | 105 |
| AMHE 160L DA 4* | 22 | 1460 | 43.5 | 91.9% | 110 |
AMEE 6 pole – 1000 rpm (16 models)
| Type | kW | rpm | In @400 V (A) | IE2 η 100% | Weight (kg) |
|---|---|---|---|---|---|
| AMEE 71Z AA 6 | 0.18 | 886 | 0.7 | 56.6% | 6.1 |
| AMEE 71Z BA 6 | 0.25 | 860 | 0.9 | 61.6% | 6.6 |
| AMEE 80Z AA 6 | 0.37 | 937 | 1.0 | 67.6% | 8.0 |
| AMEE 80Z BA 6 | 0.55 | 922 | 1.5 | 73.1% | 9.4 |
| AMEE 90S AA 6 | 0.75 | 925 | 2.2 | 76.2% | 15.0 |
| AMEE 90L BA 6* | 1.1 | 935 | 3.0 | 78.9% | 20.3 |
| AMEE 100L AA 6 | 1.1 | 950 | 3.0 | 79.5% | 19.4 |
| AMEE 100L BA 6 | 1.5 | 950 | 3.9 | 79.8% | 27.1 |
| AMEE 112M AA 6 | 2.2 | 960 | 5.3 | 81.8% | 39.0 |
| AMEE 132S YA 6 | 3 | 960 | 8.9 | 83.5% | 55.8 |
| AMEE 132M YA 6 | 4 | 955 | 10.3 | 85.2% | 65.5 |
| AMEE 132M TA 6* | 5.5 | 970 | 12.2 | 86.5% | 64.1 |
| AMEE 160M YA 6 | 5.5 | 975 | 11.7 | 86.1% | 70.5 |
| AMEE 160M ZA 6 | 7.5 | 970 | 15.8 | 87.5% | 96.6 |
| AMEE 160L ZA 6 | 9.2 | 965 | 18.1 | 88.2% | 103 |
| AMEE 160L TA 6 | 11 | 965 | 22.5 | 88.7% | 129 |
Two-speed motors – AM and AMV series
Pole-changing three-phase motors, 400 V 50 Hz, frame 63 – 160, single voltage, direct-on-line starting. Speed ratio 1:2 uses one Dahlander winding; other ratios use two separate windings.
| Version | Speeds | Connection | Output range | Typical use |
|---|---|---|---|---|
| AM 4/2 | 1500 / 3000 rpm | Dahlander Δ/YY | 0.20/0.30 – 12.5/15 kW | Constant torque – machinery, conveyors |
| AM 8/4 | 750 / 1500 rpm | Dahlander Δ/YY | 0.09/0.15 – 5.9/10.3 kW | Constant torque, low speed |
| AM 4/6 · 6/8 | 1500/1000 · 1000/750 rpm | Two separate windings | 0.22/0.15 – 11/6.6 kW | Machinery with two working speeds |
| AMV 4/2 · 8/4 | 1500/3000 · 750/1500 rpm | Dahlander Y/YY | 0.07/0.33 – 4.4/18.5 kW | Fans and centrifugal pumps (quadratic torque) |
| AMV 4/6 · 6/8 | 1500/1000 · 1000/750 rpm | Two separate windings | 0.25/0.08 – 13/4 kW | Fans and centrifugal pumps |
Standard efficiency AM (IE1) single-speed motors, 0.06 – 22 kW, are also available for replacement of existing installations where the regulations allow it.
How to read a Lafert type designation
Example: AMPE 90L BA 4. Send us the full type from the nameplate and we identify the exact motor.
Construction and standards
| Feature | Standard design |
|---|---|
| Standards | IEC 60034, IEC 60072 dimensions, CE (LVD, EMC, RoHS) |
| Degree of protection | IP55 (higher on request) |
| Insulation | Class F, temperature rise class B (80 K) |
| Ambient / altitude | up to 40 °C, up to 1000 m |
| Frame material | Aluminium alloy 56 – 160 · cast iron 180 – 315 |
| Terminal box | On top (left or right possible), entries turnable 90° · removable feet on 71 – 160 |
| Mounting | IM B3, B5, B14, B35, V1 and others (IEC 60034-7) |
| Paint | RAL 9005 black · K1 finish for marine and chemical atmospheres |
| Approvals on request | UL, CSA, CQC, EAC, UKCA |
Bearings by frame size
| Frame | Poles | Bearings DE / NDE | Dimensions (mm) |
|---|---|---|---|
| 56 | 2 – 4 | 6201-2Z | 12 × 32 × 10 |
| 63 | 2 – 4 | 6202-2Z | 15 × 35 × 11 |
| 71 | 2 – 8 | 6203-2Z | 17 × 40 × 12 |
| 80 | 2 – 8 | 6204-2Z | 20 × 47 × 14 |
| 90 | 2 – 8 | 6205-2Z | 25 × 52 × 15 |
| 100 | 2 – 8 | 6206-2Z | 30 × 62 × 16 |
| 112 | 2 – 8 | 6306-2Z | 30 × 72 × 19 |
| 132 | 2 – 8 | 6208-2Z | 40 × 80 × 18 |
| 160 | 2 – 8 | 6309-2Z | 45 × 100 × 25 |
| 180 | 2 – 6 | 6311 C3 | 55 × 120 × 29 |
| 200 | 2 – 6 | 6312 C3 | 60 × 130 × 31 |
| 225 | 2 – 6 | 6313 C3 | 65 × 140 × 33 |
| 250 | 2 – 6 | 6314 C3 | 70 × 150 × 35 |
| 280 | 2 / 4 – 6 | 6314 C3 / 6317 C3 | 80 × 170 × 39 / 85 × 180 × 41 |
| 315 | 2 / 4 – 6 | 6317 C3 / NU319 – 6319 C3 | 85 × 180 × 41 / 95 × 200 × 45 |
Bearings are lubricated for life up to frame 160; from frame 180 the motors have regreasing nipples. Roller bearings and oversized bearings are available as options.
Options
- Thermal protection: PTC thermistors, bimetal N/C or N/O, PT100
- Anti-condensation heaters (110 or 230 V)
- Encoder (200 – 2048 ppr) and forced ventilation (MFV)
- Protective cowl for vertical shaft-down mounting
- Smaller and oversized B5 / B14 flanges, cast iron endshields
- Oversized and roller bearings, regreasing device
- Double shaft and special shaft extensions
- Vibration grade B, special balancing
- NEMA C-face (frames 71 – 160)
- Windings for special voltages and 60 Hz
Frequently asked questions
Can I use an IE2 motor in Saudi Arabia?
Not for three-phase motors from 0.75 to 375 kW – SASO 2893 requires IE3 there. IE2 is fine below 0.75 kW and in markets without an IE3 requirement.
What is the difference between AMHE and AMEE?
Both are Lafert IE2 aluminium motors: AMHE covers 2 and 4 pole, AMEE covers 6 pole.
What is a Dahlander two-speed motor?
A motor with one winding that can be connected for two speeds in a ratio of 1:2, for example 1500 and 3000 rpm. Other speed ratios need two separate windings.
Which two-speed motor is right for a fan?
The AMV series: its output at low speed is matched to the quadratic torque of fans and centrifugal pumps.
Need Lafert IE2 or two-speed motors?
Send us the type from the nameplate, or kW, poles, speeds and mounting, and we reply with a quotation.
Data from the Lafert catalogue 10-260/24 at rated voltage. Technical data are subject to change by the manufacturer; final values are confirmed with the quotation. Lafert is a trademark of Lafert S.p.A.