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Festo
549421
Stepper motor EMMS-ST-87-M-SE
The Festo 549421 industrial component operates on a nominal voltage of 48 V DC with a nominal motor current of 9.5 A and features an integrated optical encoder for rotor position sensing. This unit delivers a motor holding torque of 5.9 Nm, a brake holding torque of 2 Nm, a 1.8-degree stepper angle at full step with a ±5% tolerance, and an overall mass moment of inertia at power take-off of 1.9 kgcm2. Built with Class B insulation and an IP54 protection class, it accommodates an ambient temperature range of -10 to 50 °C, a permissible axial shaft load of 65 N, a permissible radial shaft load of 200 N, and a total product weight of 3,200 g. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
Request pricing and availabilityCommercial response for your destination and required quantity.
Request a Quote- Manufacturer
- Festo
- Part number
- 549421
- Data verification
- Manufacturer evidence reviewed
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Exact part-number verificationTechnical properties are matched to 549421.
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Verified configuration
Technical Specifications
- Stepper angle at full step
- 1.8 deg
- Stepper angle tolerance
- ±5%
- Rotor position sensor
- Optical encoder
- Insulation protection class
- B
- Nominal voltage DC
- 48 V
- Nominal motor current
- 9.5 A
- CE symbol (see declaration of conformity)
- according to EU-EMV guideline
- Storage temperature
- -20 ... 70 °C
- Relative air humidity
- 45 - 80 %
- Protection class
- IP54
- Ambient temperature
- -10 ... 50 °C
- Authorization
- C-Tick
- Overall mass moment of inertia at power take-off
- 1.9 kgcm2
- Brake holding torque
- 2 Nm
- Motor holding torque
- 5.9 Nm
- Mass moment of inertia of rotor
- 1.9 kgcm2
- Permissible axial shaft load
- 65 N
- Permissible radial shaft load
- 200 N
- Product weight
- 3,200 g
- Electrical connector system
- Plug
Engineering context
Identification and RFQ Guidance
What to include in your RFQ
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Technical verification
Our sourcing response is prepared against Festo 549421. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.