







The DELTA ECMA-C21020RS is a 2kW servo motor from the renowned ECMA series, engineered for demanding industrial automation tasks requiring rapid response and precise torque control. With a rated speed of 3000 RPM and a continuous torque of 6.37 Nm, this low-inertia motor excels in applications like CNC machining, packaging machinery, and robotic arms. The 20-bit encoder ensures exceptional resolution, while the key-way shaft provides secure mechanical coupling. This model is designed without a holding brake or oil seal, making it a lightweight, high-dynamic option for systems where fast cycling is critical. It pairs seamlessly with the DELTA ASD-B2-2023-B servo drive (3-phase 220VAC input) for a matched performance package.
| Parameter | Specification |
|---|---|
| Motor Model | ECMA-C21020RS |
| Rated Power | 2.0 kW |
| Rated Torque | 6.37 Nm |
| Rated Speed | 3000 RPM |
| Maximum Speed | 5000 RPM |
| Encoder Type | 20-bit absolute encoder (multiturn) |
| Inertia Type | Low inertia |
| Brake | Without brake |
| Oil Seal | Without oil seal |
| Shaft Feature | With key-way |
| Mounting Flange | 80 mm square (IEC standard) |
| Rated Voltage | 220 VAC (3-phase) |
| Rated Current | Approx. 8.5 A |
| Insulation Class | Class B (130°C) |
| Protection Rating | IP40 (standard) |
| Ambient Temperature | 0°C to 40°C |
| Connectors Included | CN1, CN2, power terminals (cables not included) |
| Weight | Approx. 5.5 kg |
| Compatible Drive | ASD-B2-2023-B |

What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22