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Festo
550121
Servomotor EMMS-AS-70-M-LS-RMB
This Festo industrial component, part number 550121, operates with a nominal voltage DC of 360 V, features 4 pole pairs, and utilizes a star inside winding switch type. It delivers a standstill torque of 2.56 Nm, a nominal torque of 2.29 Nm, a peak torque of 7.75 Nm, and a nominal rotary speed of 4,100 1/min while maintaining insulation protection class F and an IP54 protection class rating. The unit functions within an ambient temperature range of -10 to 40 °C, supports storage temperatures from -20 to 60 °C, incorporates PTC resistor temperature monitoring, and conforms to IEC 60034 standards with RCM Mark and c UL us - Recognized (OL) authorizations. Please submit the exact part number, quantity, and application requirements to request a quote.
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Request a Quote- Manufacturer
- Festo
- Part number
- 550121
- Data verification
- Manufacturer evidence reviewed
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Verified configuration
Technical Specifications
- Ambient temperature
- -10 ... 40 °C
- Storage temperature
- -20 ... 60 °C
- Relative air humidity
- 0 - 90 %
- Conforms to standard
- IEC 60034
- Insulation protection class
- F
- Rating class according to EN 60034-1
- S1
- Temperature monitoring
- PTC resistor
- Protection class
- IP54
- Electrical connector system
- Plug
- Materials note
- Conforms to RoHS
- Corrosion resistance classification CRC
- 2 - Moderate corrosion stress
- Authorization
- RCM Mark | c UL us - Recognized (OL)
- CE symbol (see declaration of conformity)
- according to EU-EMV guideline | according to EU low voltage guideline
- Nominal voltage DC
- 360 V
- Type of winding switch
- Star inside
- Number of pole pairs
- 4
- Standstill torque
- 2.56 Nm
- Nominal torque
- 2.29 Nm
- Peak torque
- 7.75 Nm
- Nominal rotary speed
- 4,100 1/min
- Max. speed
- 6,450 1/min
- Nominal motor power
- 1,061 W
- Nominal motor current
- 2.6 A
- Peak current
- 10 A
- Motor constant
- 0.864 Nm/A
- Voltage constant, phase-to-phase
- 52.2 mVmin
- Phase-phase winding resistance
- 6.71 Ohm
- Phase-phase winding inductance
- 13.44 mH
- Overall mass moment of inertia at power take-off
- 0.68 kgcm2
- Product weight
- 2,900 g
- Permissible axial shaft load
- 75 N
- Permissible radial shaft load
- 200 N
- Rotor position sensor
- Absolute multi-turn encoder
- Rotary position encoder interface
- EnDat 22
- Rotary position encoder measuring principle
- Inductive
- Rotor position encoder resolution
- 19 Bit
- Brake holding torque
- 2 Nm
- Operating voltage DC for brake
- 24 V
- Power consumption, brake
- 11 W
- Mass moment of inertia of brake
- 0.073 kgcm2
- Switching cycles, holding brake
- 10 million idle actuations (without friction work)
- MTTF, subcomponent
- 76 years, rotary position encoder | 1769 years, holding brake
- MTTFd, subcomponent
- 152 years, rotary position encoder
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 550121. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.