High speed low inertia AC servo motor EM3A-40
Output power
4000 W
Rated speed
3000 rpm
Maximum speed
5000 rpm
Rated torque
12.80 Nm
Flange
130 mm
The output power of 4000 W fits into a servo motor EM3A-40 with a flange size 130 mm. This motor has low rotor inertia and high speed, suitable for highly dynamic systems. Movement accuracy is ensured by modern optical or magnetic encoders with a resolution of up to 23-bit.
Technical data
Rated torque
12.80 Nm
Maximum torque
38.4 Nm
Rated current
13.0 A
Maximum current
40.0 A
Motor inertia (motor without brake)
10.2 kg∙cm²
Motor inertia (motor with brake)
11.6 kg∙cm²
Allowable radial shaft load
980 N
Allowable axial shaft load
392 N
Optional brake holding torque
≥20 Nm
Optional brake voltage
24 VDC
Weight (motor without brake)
12 kg
Weight (motor with brake)
14 kg
Rated torque
12.80 Nm
Maximum torque
38.4 Nm
Rated current
13.0 A
Maximum current
40.0 A
Motor inertia (motor without brake)
10.2 kg∙cm²
Motor inertia (motor with brake)
11.6 kg∙cm²
Allowable radial shaft load
980 N
Allowable axial shaft load
392 N
Optional brake holding torque
≥20 Nm
Optional brake voltage
24 VDC
Weight (motor without brake)
12 kg
Weight (motor with brake)
14 kg
Available motor models
| Motor model | Encoder | Brake | Servo driver | Input drive supply voltage |
| Absolute optic encoder, resolution 23-bit (8 388 608 ppr) | - | ED3L-50DEA ED3L-50DPA | Three phase AC 380V...440V | |
| EM3A-40DLA244 | ✓ | |||
| EM3A-40DTA224 | Absolute magnetic encoder, resolution 17-bit (131 072 ppr) | - | ||
| EM3A-40DTA244 | ✓ |
Dimensions of AC servo motor EM3A-40
Speed-torque curves of AC servo motor EM3A-40
Description of AC servo motor EM3A-40
The output power of 4000 W fits into a servo motor EM3A-40 with a flange size 130 mm. This motor has low rotor inertia and high speed, suitable for highly dynamic systems. Movement accuracy is ensured by modern optical or magnetic encoders with a resolution of up to 23-bit. Products can be provided with a 24VDC holding brake option.
The EM3A series boasts a low inertia design for extremely-fast response times. These motors are highlighted with the perfect combination of compact size and high torque performance, ensuring unparalleled dynamic response and precision positioning when used together with servo drivers ED3L series. Versatile and powerful, the these servo drive systems has a wide range of applications, thanks to its top-tier performance, varied power range, and compact form factor. Elevate your technical operations with the EM3A series servo motors and ED3L servo drive system.
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