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Festo
1550903
Servomotor EMMS-AS-70-SK-LS-RRB-S1
The Festo 1550903 is an industrial component featuring a nominal operating voltage and nominal voltage of 360 V DC, a standstill torque of 1.64 Nm, and a nominal torque of 1.43 Nm. This unit includes 4 pole pairs, a star inside winding switch, a DIN 6885 A 4 x 4 x 16 featherkey shaft design, and a plug electrical connector system. Operating within an ambient temperature range of -40 to 40 °C and a storage temperature range of -20 to 60 °C, it achieves an IP65 protection class, insulation protection class F, and CRC 2 moderate corrosion stress resistance while conforming to IEC 60034 standards, EN 60034-1 rating class S1, and RoHS requirements. Certified with RCM Mark and c UL us Recognized (OL) authorizations alongside CE symbols under EU-EMV and low voltage guidelines, it features integrated PTC resistor temperature monitoring and handles 0 to 90% relative air humidity. Submit the exact part number, quantity, and application requirements for a quote.
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Request a Quote- Manufacturer
- Festo
- Part number
- 1550903
- Data verification
- Manufacturer evidence reviewed
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Exact part-number verificationTechnical properties are matched to 1550903.
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Verified configuration
Technical Specifications
- Ambient temperature
- -40 ... 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
- IP65
- Shaft design Featherkey
- DIN 6885 | A 4 x 4 x 16
- 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 operating voltage DC
- 360 V
- Nominal voltage DC
- 360 V
- Type of winding switch
- Star inside
- Number of pole pairs
- 4
- Standstill torque
- 1.64 Nm
- Nominal torque
- 1.43 Nm
- Peak torque
- 3.1 Nm
- Nominal rotary speed
- 5,300 1/min
- Max. speed
- 6,450 1/min
- Nominal motor power
- 866 W
- Nominal motor current
- 2.2 A
- Peak current
- 5 A
- Motor constant
- 0.647 Nm/A
- Voltage constant, phase-to-phase
- 39.47 mVmin
- Phase-phase winding resistance
- 7.66 Ohm
- Phase-phase winding inductance
- 14.5 mH
- Overall mass moment of inertia at power take-off
- 0.46 kgcm2
- Product weight
- 2,390 g
- Permissible axial shaft load
- 75 N
- Permissible radial shaft load
- 150 N
- Rotor position sensor
- Resolver
- Rotary position encoder interface
- SIN/COS analogue signal
- Rotary position encoder measuring principle
- Inductive
- Brake holding torque
- 2 Nm
- Operating voltage DC for brake
- 24 V
- Power consumption, brake
- 11 W
- Mass moment of inertia of brake
- 0.07 kgcm2
- Switching cycles, holding brake
- 10 million idle actuations (without friction work)
- MTTF, subcomponent
- 80 years, rotary position encoder | 1769 years, holding brake
- MTTFd, subcomponent
- 160 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 1550903. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.