SEW Eurodrive DRN (IE3)
SEW-EURODRIVE three-phase asynchronous motors of the DRN series, efficiency class IE3, with 2, 4, 6 or 8 poles, sizes from 63 to 315.
DRN is the SEW-EURODRIVE series of three-phase motors that comply with energy efficiency class IE3, used both as a separate motor and as the motor of gearmotors. The code is read in segments: in “DRN100LS4/TF”, DR is the motor series, N the product line code (DRN), 100 the size, LS the rotor length, 4 the number of poles and TF the temperature sensor. The nominal sizes in the designation are 56, 63, 71, 80, 90, 100, 112, 132, 160, 180, 200, 225, 250, 280 and 315, and the lengths are designated S, MK, MS, M, ME, LS, LM, L or H.
The manufacturer's document has data tables for 400 V, 50 Hz, S1 duty, separately for 2, 4, 6 and 8 poles: power, torque, speed, current, power factor, efficiency at 50%, 75% and 100% of load, starting ratios, as well as mass and moment of inertia, with the BE.. brake belonging to each size. For a quotation request please send the full code from the nameplate, the voltage and the frequency; we confirm the code, the construction variant and the availability in the quotation.
Models and codes
| Code | Note |
|---|---|
| DRN 63MS 4 | 0.12 kW, 1380 min⁻¹, 0.405 A at 400 V, efficiency at rated load 64.8%; the lowest power in the 4-pole table. |
| DRN 90L 4 | 1.5 kW, 1461 min⁻¹, 3.4 A at 400 V, efficiency at rated load 85.6%; with BE2 brake in the brake motor version. |
| DRN 100LS 4 | 2.2 kW, 1450 min⁻¹, 4.75 A at 400 V; with BE5 brake in the brake motor version. |
| DRN 132M 4 | 7.5 kW, 1468 min⁻¹, 15.2 A at 400 V; with BE11 brake in the brake motor version. |
| DRN 225M 4 | 45 kW, 1482 min⁻¹, 81 A at 400 V, efficiency at rated load 94.2%. |
| DRN 315H 4 | 200 kW, 1489 min⁻¹, 355 A at 400 V; the highest power in the 4-pole table. |
| DRN 90L 2 | 2.2 kW, 2905 min⁻¹, 4.3 A at 400 V (2 poles). |
| DRN 132L 6 | 5.5 kW, 975 min⁻¹, 13.8 A at 400 V (6 poles). |
| DRN 112M 8 | 1.5 kW, 715 min⁻¹, 4.2 A at 400 V (8 poles). |
Key specifications
| Energy efficiency class | IE3 |
|---|---|
| Nominal sizes in the designation | 56–315 |
| Rated powers in the tables, 4 poles, 400 V / 50 Hz, S1 | 0.12–200 kW |
| Rated powers in the tables, 2 poles | 0.18–7.5 kW |
| Rated powers in the tables, 6 poles | 0.09–7.5 kW |
| Rated powers in the tables, 8 poles | 0.09–11 kW |
| Number of poles in the designation | 2, 4, 6, 8, 4/2, 8/2, 8/4 |
| Construction variants (suffix) | /F.A and /F.B (foot-mounted, sizes 71MS–132S and 225–315), /FF and /FE (IEC flange, 63–315), /FT and /FY (threaded flange, 63–100), /FC (C-face, 63–160), /FG and /FM (integral motor) |
The document “DRN.. gearmotors (IE3)” is edition 02/2026 from the manufacturer's documentation server, with no withdrawal notice for the DRN series.
Frequently asked questions
How is a DRN type code read?
In the example from the manufacturer's document, “DRN100LS4/TF” breaks down into motor series DR, product line code N, size 100, rotor length LS, number of poles 4 and temperature sensor TF. For a gearmotor, the gear unit code precedes the motor, for example K107R77 DRN100LS4/TF (double gearmotor).
What does DRN mean compared with other SEW series?
The manufacturer's document explains DRN as a motor series that complies with efficiency class IE3. The DR2S series is described as a second-generation standard motor, with single-speed variants in class IE1. For the DRS and DRE series we confirm the data separately, against the code on the nameplate.
What data should I send for a quotation?
The full code from the nameplate, the voltage, the frequency, the speed or number of poles, the construction variant (feet or flange) and, if needed, the brake and the temperature sensor. To order, the lead time is usually 1–4 weeks; the availability and the exact lead time are confirmed in the quotation.
Other SEW Eurodrive series
The tables used are those for 400 V, 50 Hz, S1 duty; data for other voltages and for 60 Hz, as well as dimensions, are confirmed from the manufacturer's documentation, against the exact code.
Updated: 2026-11-12