About ECM-E3M-C20807SSE Delta Servo Motor + B 750W M , Torque Nm - 2.39 , RPM - 3000
The Delta ECM-E3M-C20807SSE is the high-torque, 750W motor from the ASDA-E3 series, featuring a built-in electromagnetic brake.
1. Performance Specifications
- Rated Output Power: 750 W
- Rated Torque: 2.39 N-m (21.15 lb-in)
- Maximum (Peak) Torque: 7.16 N-m (63.37 lb-in)
- Rated Speed: 3000 RPM
- Maximum Speed: 6000 RPM
- Inertia Type: Medium Inertia (3.41 10 kgm) Note: Slightly higher than the non-brake version due to the brake disc.
2. Brake Specifications
- Brake Type: Electromagnetic Holding Brake (Power-off activated)
- Holding Torque: 2.39 N-m (Matches rated torque)
- Brake Power Consumption: Approximately 8.2 W
- Brake Release Time: < 80 ms
- Brake Engage Time: < 40 ms
3. Electrical & Feedback
- Rated Current: 5.1 A
- Max Current: 15.3 A
- Encoder: 24-bit Absolute/Incremental (16,777,216 pulses/rev)
- Protection Rating: IP67 (when used with waterproof connectors)
4. Physical Dimensions (Inches)
- Frame Size: 3.15" x 3.15" (80mm x 80mm)
- Body Length (L): 6.13" (155.8 mm) This is 1.6" longer than the RSE model.
- Shaft Diameter: 0.75" (19 mm)
- Shaft Length: 1.38" (35 mm)
- Net Weight: 6.39 lbs (2.9 kg)
5. Installation
- Mounting Pitch (PCD): 3.54" (90 mm)
- Mounting Holes: 4 x 0.26" (6.6 mm)
- Compatible Drive: ASD-E3-0721-L (or -M / -E variants)
The ECM-E3M-C20807SSE is the 750W Medium Inertia version of the Delta E3 series equipped with an internal electromagnetic holding brake (indicated by the "S").
Dimensions & Weight (Inches/Lbs)
Because it includes a brake and uses the larger 80mm frame, this motor is significantly longer and heavier than the standard version.
| Dimension |
Metric (mm) |
Imperial (Inches) |
| Width (Frame) |
80 mm |
3.15 in |
| Height (Frame) |
80 mm |
3.15 in |
| Body Length (L) |
155.8 mm |
6.13 in |
| Shaft Length (LR) |
35 mm |
1.38 in |
| Shaft Diameter (S) |
19 mm |
0.75 in |
| Total Weight |
2.9 kg |
6.39 lbs |
Key Functions
- Static Holding: The internal brake is designed to lock the shaft in place when power is cut. It provides a holding torque of 2.39 N-m, perfectly matching the motor's rated torque to prevent movement.
- Vertical Axis Safety: This is the ideal motor for heavy Z-axis applications. It provides the torque needed to lift significant weight and the brake ensures the load stays put during power failures or emergency stops.
- High-Resolution Feedback: Like all E3 motors, it features a 24-bit encoder (16.7 million pulses/rev) for ultra-precise positioning and smooth motion even at low speeds.
Technical Summary
- Rated Torque: 2.39 N-m (Peak: 7.16 N-m)
- Rated Speed: 3000 RPM (Max: 6000 RPM)
- Mounting (PCD): 90 mm (3.54 in) with 6.6 mm holes.
- Compatible Drive: ASD-E3-0721-L (400V/200V variants).