- Model Code Explanation
| Code Segment | Description |
| ECMA | Basic identifier for Delta ECMA series servo motors |
| C | Low Inertia series |
| A | Absolute Encoder, 17‑bit single‑turn + 16‑bit multi‑turn |
| 6 | Motor frame size 60mm × 60mm |
| 4 | Rated output power 0.4kW (400W) |
| R | Shaft with keyway and center tapped hole |
| S | With oil seal, no brake |
- Core Technical Specifications
| Item | Specification |
| Series | ECMA-A2 High-performance servo motor series |
| Rated Power | 0.4kW (400W) |
| Rated Torque | 1.27N·m |
| Max. Torque | 3.82N·m (3× rated torque) |
| Rated Speed | 3000 r/min |
| Max. Speed | 5000 r/min |
| Voltage Class | 220VAC (1/3‑phase) |
| Continuous Output Current | 2.60A rms |
| Instantaneous Max. Output Current | 7.80A rms |
| Encoder Resolution | 17‑bit single‑turn (131072 pulses/rev), 16‑bit multi‑turn |
| Protection Grade | IP65 (with waterproof connector or oil seal) |
| Certifications | CE, RCM, EAC, TUV, UL |
| Compatible Drive | ASD-A2-0421 series (e.g. ASD-A2-0421-M/L/E) |
- Operating Environment and Installation Conditions
- Operating Temperature: 0°C ~ 40°C (derate by 1% for each 1°C rise above 40°C)
- Storage Temperature: -20°C ~ 65°C
- Relative Humidity: 10% ~ 90%RH (non-condensing)
- Mounting Method: Flange mounting (IEC standard), can be fitted with gearboxes, pulleys and other transmission components
- Vibration Level: Complies with IEC 60068-2-6, max. 2.5g (10~2000Hz)
- Altitude: ≤1000m (derate above 1000m)
- Model List in the Same Series (60mm Frame, 400W)
| Model | Encoder Type | Brake Configuration | Special Features |
| ECMA-CA0604RS | Absolute | No brake | With oil seal, keyway + center tapped hole |
| ECMA-CA0604SS | Absolute | With brake | With oil seal, keyway + center tapped hole |
| ECMA-C20604RS | Incremental | No brake | With oil seal, keyway + center tapped hole |
| ECMA-C20604SS | Incremental | With brake | With oil seal, keyway + center tapped hole |
| ECMA-CW0604RS | Nikon encoder | No brake | With oil seal, keyway + center tapped hole (for CNC) |
- Alternative Model Solutions
5.1 Recommended New-Generation Delta Replacements
| Original Model | Replacement Model | Series | Key Improvements |
| ECMA-CA0604RS | ECM-B3M-CA0604RS1 | B3 Series | Bandwidth up to 3.1kHz, settling time reduced by 40%, supports more fieldbus protocols |
| ECM-A3L-CA0604RS1 | A3 Series | Higher precision, supports Industrial Ethernet, compatible with ASD-A3 drives |
5.2 Other Brand Alternatives
| Brand | Recommended Model | Power/Torque | Encoder | Compatible Drive |
| Siemens | 1FL6042-1AF61-0AA1 | 0.4kW/1.27N·m | 17‑bit absolute | V90 series |
| Mitsubishi | HF-KP43B | 0.4kW/1.27N·m | 20‑bit absolute | MR-J4 series |
| Schneider | BCH0601O12A1C | 0.4kW/1.27N·m | 17‑bit absolute | LXM32 series |
- Key Features and Applications
Core Features
High-precision Positioning: 17-bit absolute encoder ensures accurate position control
High-speed Response: Response frequency up to 1kHz, settling time <1ms
Vibration Suppression: Built-in automatic low-frequency vibration and high-frequency resonance suppression
Flexible Control: Supports position / speed / torque modes, 64 internal position programming groups
Communication Compatibility: Works with ASDA-A2 drives, supports CANopen, DMCNET, EtherCAT and other industrial protocols
Typical Applications
- Electronics Manufacturing: SMT machines, semiconductor equipment, PCB drilling machines
- Packaging Machinery: High-speed packaging lines, labelers, bag making machines
- Machine Tools: Small CNC milling machines, engravers, cutters
- Automated Production Lines: Conveying systems, robot joints, precision positioning stages
- Printing Equipment: Web printing presses, register control for label printers
- Ordering and Notes
- Standard Package: Motor body, power cable connector, encoder cable connector, mounting flange, key
- Optional Accessories: Brake resistor, gearbox, coupling, motor cover
- Drive Matching: Must use ASD-A2 series 400W drive (ASD-A2-0421-M/L/E) or upgrade to B3/A3 series
- Installation Notes: Coaxiality error between motor shaft and load shaft <0.05mm; avoid radial load exceeding rated value
Delta ECMA Series Servo Motor Model List & Price Guide
- Complete Model Naming Convention
| Code Segment | Available Values | Description |
| ECMA | Fixed | Basic identifier for Delta ECMA series servo motors |
| 5th Digit | C/E/F/G/J/K/L | Inertia class: C=Low, E=Medium, F=Medium‑High, G=High, J=Extra‑High, K=Medium (400V), L=Medium‑High (400V) |
| 6th Digit | 2/A/W | Encoder type: 2=Incremental (17‑bit), A=Absolute (17‑bit single +16‑bit multi), W=Nikon encoder (CNC dedicated) |
| 7th‑8th Digits | 04/06/08/10/13/18/22 | Frame size (mm): 04=40, 06=60, 08=80, 10=100, 13=130, 18=180, 22=220 |
| 9th‑10th Digits | 01/02/04/07/10/15/20/30 | Rated power code: 01=0.1kW, 02=0.2kW, 04=0.4kW, 07=0.75kW, 10=1.0kW, 15=1.5kW, 20=2.0kW, 30=3.0kW |
| 11th Digit | R/S/E/P/H | Shaft type: R=keyway + tapped hole, S=keyway + tapped hole + brake, E=smooth shaft, P=smooth shaft + brake, H=special shaft |
| 12th Digit | S | Fixed |
- Complete Model List (By Inertia Class)
2.1 Low Inertia C Series (220V, 3000rpm)
| Power | Frame | Incremental (No Brake) | Incremental (With Brake) | Absolute (No Brake) | Absolute (With Brake) |
| 0.1kW | 40mm | ECMA-C20401RS | ECMA-C20401SS | ECMA-CA0401RS | ECMA-CA0401SS |
| 0.2kW | 60mm | ECMA-C20602RS | ECMA-C20602SS | ECMA-CA0602RS | ECMA-CA0602SS |
| 0.4kW | 60mm | ECMA-C20604RS | ECMA-C20604SS | ECMA-CA0604RS | ECMA-CA0604SS |
| 0.75kW | 80mm | ECMA-C20807RS | ECMA-C20807SS | ECMA-CA0807RS | ECMA-CA0807SS |
| 1.0kW | 100mm | ECMA-C21010RS | ECMA-C21010SS | ECMA-CA1010RS | ECMA-CA1010SS |
| 2.0kW | 130mm | ECMA-C21320RS | ECMA-C21320SS | ECMA-CA1320RS | ECMA-CA1320SS |
2.2 Medium Inertia E Series (220V, 2000rpm)
| Power | Frame | Incremental (No Brake) | Incremental (With Brake) | Absolute (No Brake) | Absolute (With Brake) |
| 0.5kW | 130mm | ECMA-E21305RS | ECMA-E21305SS | ECMA-EA1305RS | ECMA-EA1305SS |
| 1.0kW | 130mm | ECMA-E21310RS | ECMA-E21310SS | ECMA-EA1310RS | ECMA-EA1310SS |
| 1.5kW | 130mm | ECMA-E21315RS | ECMA-E21315SS | ECMA-EA1315RS | ECMA-EA1315SS |
| 2.0kW | 130mm | ECMA-E21320RS | ECMA-E21320SS | ECMA-EA1320RS | ECMA-EA1320SS |
| 3.0kW | 180mm | ECMA-E21830RS | ECMA-E21830SS | ECMA-EA1830RS | ECMA-EA1830SS |
2.3 Medium-High Inertia F Series (220V, 1500rpm)
| Power | Frame | Incremental (No Brake) | Incremental (With Brake) | Absolute (No Brake) | Absolute (With Brake) |
| 0.8kW | 130mm | ECMA-F21308RS | ECMA-F21308SS | ECMA-FA1308RS | ECMA-FA1308SS |
| 1.3kW | 130mm | ECMA-F21313RS | ECMA-F21313SS | ECMA-FA1313RS | ECMA-FA1313SS |
| 1.8kW | 130mm | ECMA-F21318RS | ECMA-F21318SS | ECMA-FA1318RS | ECMA-FA1318SS |
| 3.0kW | 180mm | ECMA-F21830RS | ECMA-F21830SS | ECMA-FA1830RS | ECMA-FA1830SS |
2.4 Other Special Series
| Series | Features | Typical Model | Power Range |
| G Series | High inertia, 3000rpm | ECMA-G21309RS | 0.9kW~3.0kW |
| J Series | Extra‑high inertia, 1500rpm | ECMA-J21020RS | 2.0kW~7.5kW |
| K Series | Medium inertia, 400V, 2000rpm | ECMA-K21315RS | 1.5kW~3.0kW |
| L Series | Medium‑high inertia, 400V, 1500rpm | ECMA-L22215RS | 15kW~22kW |
- Price Reference Table (Latest as of Mar 2026)
| Model | Power | Encoder | Brake | Price Range (CNY) | Authorized Distributor Price |
| ECMA-CA0604RS | 0.4kW | Absolute | No | 1,800~2,200 | 2,050 |
| ECMA-C20604RS | 0.4kW | Incremental | No | 1,600~1,900 | 1,750 |
| ECMA-C20807RS | 0.75kW | Incremental | No | 2,200~2,600 | 2,450 |
| ECMA-E21315RS | 1.5kW | Incremental | No | 3,500~4,200 | 3,850 |
| ECMA-F21830SS | 3.0kW | Incremental | Yes | 6,800~7,800 | 7,200 |
| ECMA-CA1320SS | 2.0kW | Absolute | Yes | 5,200~6,000 | 5,600 |
- Price Influencing Factors
- Inertia Class: Low inertia (C series) is the lowest priced; extra-high inertia (J series) is the highest, with a difference of over 3x
- Encoder Type: Absolute encoder (CA series) is 15%~20% more expensive than incremental (C2 series)
- Brake Configuration: Models with brake (SS) are 10%~15% more expensive than non-brake (RS)
- Power Rating: Doubling power typically increases price by 40%~60%
- Purchase Channel: Stable pricing from authorized distributors; e-commerce platforms offer 10%~15% lower during promotions; second-hand market 30%~50% lower
- Recommended Alternative Models
5.1 Delta New-Generation Alternatives
| Original Model | Recommended Replacement | Series | Price Change | Key Improvements |
| ECMA-CA0604RS | ECM-B3M-CA0604RS1 | B3 Series | +15%~20% | Bandwidth 3.1kHz, settling time reduced by 40% |
| ECMA-C20807RS | ECM-A3L-C20807RS1 | A3 Series | +20%~25% | Supports Industrial Ethernet, compatible with ASD-A3 drives |
5.2 Other Brand Alternatives
| Original Model | Alternative Brand | Recommended Model | Price Comparison |
| ECMA-CA0604RS | Siemens | 1FL6042-1AF61-0AA1 | 30%~40% higher |
| ECMA-C20807RS | Mitsubishi | HF-KP73B | 25%~35% higher |
| ECMA-E21315RS | Schneider | BCH0602O12A1C | 20%~30% higher |
- Purchasing Recommendations
- Channel Selection: Prioritize Delta authorized distributors to ensure genuine products and full 18-month warranty
- Bulk Purchase: Orders over 10 units qualify for 10%~15% volume discount
- New vs Old: New B3/A3 series offer significant performance improvements; recommended upgrade if budget allows
- Accessory Matching: Servo motors must be used with Delta ASDA series drives; ASD-A2/B2/B3/A3 series recommended
All prices are exclusive of tax. 13% VAT will be added for actual purchases. Prices may vary due to market fluctuations, order quantity and promotions. Please confirm latest pricing with Delta authorized distributors before purchase.
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