The ECM-B3M-E21310SS1 (ECMB3ME21310SS1) is a high-performance industrial servo motor from Delta's advanced B3 series, designed to meet the rigorous demands of modern motion control applications. Featuring a 1 kW rated power output and a medium inertia rotor design, this motor strikes an optimal balance between high-speed response and stable control for loads with varying mass. It is equipped with a high-resolution 24-bit incremental optical encoder, providing 16,777,216 pulses per revolution for unmatched positioning accuracy. Built for reliability in harsh industrial environments, this model includes an integrated mechanical brake and a high-grade oil seal, making it ideal for vertical axis applications in CNC machining, automated packaging, and high-precision material handling systems.
The ECM-B3M-E21310SS1 part number follows Delta's structured identification logic for the B3 series:
ECM: Electronic Commutation Motor.
B3: Product series (B3 High-Performance Series).
M: Medium Inertia (Optimized for applications requiring stable control of moderate loads).
E: Rated Voltage and Speed (220 V / 2000 rpm).
2: 24-bit Incremental Optical Encoder.
13: Motor Frame Size (130 mm).
10: Rated Power Output (1.0 kW).
S: Shaft and Oil Seal configuration (Keyway with fixed screw holes, includes Brake and Oil Seal).
S: Standard connector type and standard shaft diameter.
1: Special Code (Standard product specifications).
| Attribute | Specification Details |
| Model | ECM-B3M-E21310SS1 |
| Brand | DELTA |
| Series | ECM-B3 Series |
| Rated Power Output | 1.0 kW |
| Rated Speed | 2000 rpm |
| Rated Voltage | 220 V |
| Rotor Inertia | Medium Inertia |
| Encoder Resolution | 24-bit (16,777,216 p/rev) |
| Frame Size | 130 mm |
| Holding Brake | Integrated |
| Oil Seal | Integrated |
| Shaft Design | Keyway with fixed screw holes |
| Weight | 6.3 kg |
| Shipping Weight | 7.5 kg |
When should I choose the "Medium Inertia" (M) version over the "Low Inertia" version?
The Medium Inertia rotor in the ECM-B3M-E21310SS1 is designed for applications where the load inertia is relatively high or fluctuates during operation. It provides greater mechanical stability and reduces the tuning complexity for the servo drive, making it superior for belt-driven systems and heavy-duty mechanical linkages compared to low-inertia motors which are strictly for ultra-fast acceleration of light loads.
What is the significance of the 24-bit encoder in this motor?
The 24-bit optical encoder provides a significantly higher resolution than standard 17-bit or 20-bit encoders. This allows for smoother low-speed operation, improved surface finish in CNC applications, and much higher rejection of mechanical resonance, as the servo drive can detect and compensate for minute deviations in position.
How does the integrated brake function in vertical applications?
The integrated brake is a holding brake designed to lock the motor shaft in place when power is removed (failsafe). This prevents the "dropping" of vertical axes due to gravity during an emergency stop or power failure. It should not be used as a dynamic brake to stop the motor while it is spinning.
Oil Seal Maintenance: The integrated oil seal protects the motor internals from gearbox lubricants or cutting fluids. Ensure that the oil level in the connected gearbox does not exceed the center of the motor shaft to prevent excessive pressure on the seal, which could lead to premature wear or fluid ingress.
Holding Brake Wiring: The brake requires a dedicated 24 VDC power supply. Never connect the brake to the same power source as the servo drive logic without isolation, as back-EMF from the brake coil can cause electrical noise. Always use a surge-protecting diode or varistor across the brake coil to suppress voltage spikes.
Shaft Alignment: When mounting the motor using the 130 mm frame flange, ensure the coupling alignment is within the manufacturer's specified tolerance (typically < 0.03 mm). Misalignment can cause excessive radial loads on the bearings and the oil seal, leading to increased vibration and shortened motor life.
Global Express Shipping
Returns & Warranty
Manufacturer: Delta Electronics
Product No.: ECM-B3M-E21310SS1
Country of origin:United States
Product Type: ECM-B3 Series Servo Motor
Payment: T/T, Western Union
Weight: 6300g
Shipping port: Xiamen
Warranty: 12 months
The ECM-B3M-E21310SS1 (ECMB3ME21310SS1) is a high-performance industrial servo motor from Delta's advanced B3 series, designed to meet the rigorous demands of modern motion control applications. Featuring a 1 kW rated power output and a medium inertia rotor design, this motor strikes an optimal balance between high-speed response and stable control for loads with varying mass. It is equipped with a high-resolution 24-bit incremental optical encoder, providing 16,777,216 pulses per revolution for unmatched positioning accuracy. Built for reliability in harsh industrial environments, this model includes an integrated mechanical brake and a high-grade oil seal, making it ideal for vertical axis applications in CNC machining, automated packaging, and high-precision material handling systems.
The ECM-B3M-E21310SS1 part number follows Delta's structured identification logic for the B3 series:
ECM: Electronic Commutation Motor.
B3: Product series (B3 High-Performance Series).
M: Medium Inertia (Optimized for applications requiring stable control of moderate loads).
E: Rated Voltage and Speed (220 V / 2000 rpm).
2: 24-bit Incremental Optical Encoder.
13: Motor Frame Size (130 mm).
10: Rated Power Output (1.0 kW).
S: Shaft and Oil Seal configuration (Keyway with fixed screw holes, includes Brake and Oil Seal).
S: Standard connector type and standard shaft diameter.
1: Special Code (Standard product specifications).
| Attribute | Specification Details |
| Model | ECM-B3M-E21310SS1 |
| Brand | DELTA |
| Series | ECM-B3 Series |
| Rated Power Output | 1.0 kW |
| Rated Speed | 2000 rpm |
| Rated Voltage | 220 V |
| Rotor Inertia | Medium Inertia |
| Encoder Resolution | 24-bit (16,777,216 p/rev) |
| Frame Size | 130 mm |
| Holding Brake | Integrated |
| Oil Seal | Integrated |
| Shaft Design | Keyway with fixed screw holes |
| Weight | 6.3 kg |
| Shipping Weight | 7.5 kg |
When should I choose the "Medium Inertia" (M) version over the "Low Inertia" version?
The Medium Inertia rotor in the ECM-B3M-E21310SS1 is designed for applications where the load inertia is relatively high or fluctuates during operation. It provides greater mechanical stability and reduces the tuning complexity for the servo drive, making it superior for belt-driven systems and heavy-duty mechanical linkages compared to low-inertia motors which are strictly for ultra-fast acceleration of light loads.
What is the significance of the 24-bit encoder in this motor?
The 24-bit optical encoder provides a significantly higher resolution than standard 17-bit or 20-bit encoders. This allows for smoother low-speed operation, improved surface finish in CNC applications, and much higher rejection of mechanical resonance, as the servo drive can detect and compensate for minute deviations in position.
How does the integrated brake function in vertical applications?
The integrated brake is a holding brake designed to lock the motor shaft in place when power is removed (failsafe). This prevents the "dropping" of vertical axes due to gravity during an emergency stop or power failure. It should not be used as a dynamic brake to stop the motor while it is spinning.
Oil Seal Maintenance: The integrated oil seal protects the motor internals from gearbox lubricants or cutting fluids. Ensure that the oil level in the connected gearbox does not exceed the center of the motor shaft to prevent excessive pressure on the seal, which could lead to premature wear or fluid ingress.
Holding Brake Wiring: The brake requires a dedicated 24 VDC power supply. Never connect the brake to the same power source as the servo drive logic without isolation, as back-EMF from the brake coil can cause electrical noise. Always use a surge-protecting diode or varistor across the brake coil to suppress voltage spikes.
Shaft Alignment: When mounting the motor using the 130 mm frame flange, ensure the coupling alignment is within the manufacturer's specified tolerance (typically < 0.03 mm). Misalignment can cause excessive radial loads on the bearings and the oil seal, leading to increased vibration and shortened motor life.
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Color pattern |
Black
|
| Country of origin |
United States
|
| Power source |
AC-powered
|
Replacing a 1756-L73 does not automatically mean upgrading its firmware. This guide compares v19.013, v21.011 and v31.011, focusing on project compatibility, HMI communications, legacy networks and...
Implement a 3-SPST switch XOR light circuit in LogixPro or RSLogix 500 using an internal relay bit. Includes truth tables, boolean equations, and verified.
Integrate Allen-Bradley CompactLogix, Caterpillar ATS, and generators into DeltaV DCS over Modbus RTU. Covers ProSoft MVI69-MCM, Miille DIN266 gateways.
ONS instruction fires but the OTE coil never latches in Studio 5000 because the one-shot is only true for one scan. Use OTL/OTU or seal-in logic instead.
Configure Allen-Bradley Kinetix 5500 servo drives on EtherNet/IP. Covers CIP Sync, IEEE 1588 V2 timing, Stratix selection, DLR topology, and HMI.
A moving-average filter is the sliding-window smoother most instrument engineers drop into DCS and PLC analog paths. Here is how the window works, how N and sample time set lag, and when a...
