Lenze m500 IE3 Premium Efficiency Three-Phase AC Motors
The Lenze m500 Motor Series (featured model: m550-P90L4 1.5 kW IE3) is Lenze's advanced three-phase AC electric motor platform, purpose-built to comply with global IEC energy efficiency standards while providing seamless, direct mounting onto Lenze g500 series gearboxes (g500-H, g500-S, g500-B, g500-W). Designated as **m550-P** for IE3 Premium Efficiency performance, m500 motors cover output ratings from 0.12 kW up to 55.0 kW across frame sizes IEC 63 to 225M. Featuring reinforced VFD-rated winding insulation for frequency inverter duty (paired with **Lenze i550 and i510 inverters**), modular spring-applied holding brakes, and HTL/TTL incremental encoders, Lenze m500 AC motors deliver 100% direct mechanical compatibility to replace legacy **Lenze MDEMA** and **MDFQA** motor series in industrial machinery worldwide.
Technical Specifications
| Featured Model | m550-P90L4 (Frame 90L, 1.5 kW, 4-Pole, IE3 Premium Efficiency AC Motor) |
|---|---|
| Brand / Manufacturer | Lenze SE (Germany) |
| Product Series | m500 Motor Series: m550-P (IE3 Premium) / m540-P (IE2 High Efficiency) |
| Frame Sizes Covered | IEC Frame Sizes 63, 71, 80, 90, 100, 112, 132, 160, 180, 200, 225M |
| Energy Efficiency Class | IE3 Premium Efficiency according to IEC 60034-30-1 (m550-P Series) |
| Rated Power Range | 0.12 kW to 55.0 kW (4-pole 1500 rpm / 2-pole / 6-pole execution) |
| Inverter Duty Insulation | Reinforced Phase Insulation System (Class F / IP55 Standard, IP65 Optional) |
| Modular Options | Integrated Spring-Applied Brakes (INTORQ), Forced Cooling Fans, HTL/TTL Encoders |
Documentation & Resources
Lenze m550-P IE3 Motor Frame Size & Power Rating Matrix
Full selection matrix for Lenze m550-P IE3 Premium Efficiency AC motors. Review rated motor power, frame designation, rated torque, and matched g500 gearbox sizes:
| Motor Frame Size | Rated Power (kW) | Rated Speed (rpm) | Lenze Model Code (IE3) | Directly Matched Lenze g500 Gearbox Size |
|---|---|---|---|---|
| IEC 63 | 0.12 kW - 0.18 kW | 1400 - 1430 rpm | m550-P63M4 | g500-H450 / g500-S130 / g500-B45 / g500-W45 |
| IEC 71 | 0.25 kW - 0.37 kW | 1410 - 1440 rpm | m550-P71M4 | g500-H450 / g500-S130 / g500-B110 / g500-W45 |
| IEC 80 | 0.55 kW - 0.75 kW | 1430 - 1455 rpm | m550-P80M4 | g500-H600 / g500-S220 / g500-B240 / g500-W110 |
| IEC 90 | 1.1 kW - 1.5 kW | 1440 - 1460 rpm | m550-P90S4 / m550-P90L4 | g500-H1000 / g500-S400 / g500-B450 / g500-W110 |
| IEC 100 | 2.2 kW - 3.0 kW | 1450 - 1465 rpm | m550-P100L4 | g500-H1000 / g500-S400 / g500-B450 |
| IEC 112 | 4.0 kW | 1455 - 1470 rpm | m550-P112M4 | g500-H1400 / g500-S660 / g500-B1500 |
| IEC 132 | 5.5 kW - 7.5 kW | 1460 - 1475 rpm | m550-P132S4 / m550-P132M4 | g500-H1400 / g500-S1600 / g500-B4500 |
| IEC 160 to 225M | 11.0 kW - 55.0 kW | 1470 - 1485 rpm | m550-P160M4 to m550-P225M4 | g500-H1400 / g500-S1600 / g500-B4500 Heavy Duty |
Legacy Lenze MDEMA / MDFQA Series to m550 IE3 Motor Upgrade Guide
Obsolete Lenze MDEMA, MDERA, and MDFQA series AC motors can be directly upgraded to modern m550-P IE3 Premium Efficiency motors while preserving 100% exact flange pilot diameters and terminal box positions:
| Legacy Lenze Motor Model (Obsolete) | Legacy Efficiency Class | Current m550 IE3 Equivalent Model | Current IE3 Motor Frame | Mechanical Compatibility & Retrofit Notes |
|---|---|---|---|---|
| Lenze MDEMA 063-12 / 063-32 | IE1 Standard Efficiency | Lenze m550-P63M4 100% Drop-In | m550-P63M4 (0.18 kW IE3) | Direct 1:1 drop-in replacement onto GST/g500 gearboxes. IP55 standard. |
| Lenze MDEMA 071-12 / 071-32 | IE1 Standard Efficiency | Lenze m550-P71M4 100% Drop-In | m550-P71M4 (0.37 kW IE3) | Identical shaft pinion interface & terminal box orientation. |
| Lenze MDEMA 080-12 / 080-32 | IE1 / IE2 Efficiency | Lenze m550-P80M4 100% Drop-In | m550-P80M4 (0.75 kW IE3) | Matches 19mm shaft diameter / direct pinion connection. Reduces losses by up to 12%. |
| Lenze MDEMA 090-12 / 090-32 | IE1 / IE2 Efficiency | Lenze m550-P90L4 IE3 Upgrade | m550-P90L4 (1.5 kW IE3) | Direct replacement for 1.5 kW drives. Enhanced VFD insulation for i550 inverters. |
| Lenze MDEMA 100-12 / 112-32 | IE1 / IE2 Efficiency | Lenze m550-P100L4 / m550-P112M4 IE3 Upgrade | m550-P100L4 (2.2 kW / 4.0 kW) | Direct replacement for heavy conveyor drives. Fits standard B5/B14 IEC flanges. |
Expert Technical Sourcing & Global Supply
When replacing older Lenze MDEMA or MDFQA motors on existing production equipment, switching to current m550-P IE3 Premium Efficiency motors guarantees 100% exact physical mounting alignment without modifying gearbox input flanges or wiring connections. Simply supply us with your existing Lenze motor nameplate code or serial number (e.g., m550-P90L4 or MDEMA 090-32), and our technical engineering team will deliver a 100% compliant replacement specification and proposal.
Core Benchmark Model Standard Configurations
- m550-P63M4 (0.18 kW 4-Pole IE3)
- m550-P71M4 (0.37 kW 4-Pole IE3)
- m550-P80M4 (0.75 kW 4-Pole IE3)
- m550-P90S4 (1.1 kW 4-Pole IE3)
- m550-P90L4 (1.5 kW 4-Pole IE3)
- m550-P100L4 (2.2 kW 4-Pole IE3)
- m550-P112M4 (4.0 kW 4-Pole IE3)
- m550-P132S4 (5.5 kW 4-Pole IE3)
- m550-P132M4 (7.5 kW 4-Pole IE3)
- m550-P160M4 (11.0 kW 4-Pole IE3)
- m550-P180M4 (18.5 kW 4-Pole IE3)
- m540-P80M4 (0.75 kW IE2 High Eff)
- m540-P90L4 (1.5 kW IE2 High Eff)
- Lenze MDEMA 063 Replacement
- Lenze MDEMA 071 Replacement
- Lenze MDEMA 080 Replacement
- Lenze MDEMA 090 Replacement
- Lenze MDEMA 100 Replacement
- m550 IE3 Motor with Brake
- m550 IE3 Motor with Encoder
