Festo STEPPER MOTOR EMMS-ST-57-M-SE-G2

Ambient temperature -10 … 50 °C
Storage temperature -20 … 70 °C
Relative air humidity 0 – 85 %
Conforms to standard IEC 60034
Insulation protection class B
Thermal class according to EN 60034-1 B
Rating class according to EN 60034-1 S1
Protection class IP54
Electrical connector system Plug
Materials note Conforms to RoHS
Corrosion resistance classification CRC 1 – Low corrosion stress
Authorisation RCM Mark
c UL us – Recognized (OL)
CE mark (see declaration of conformity) to EU directive for EMC
Nominal operating voltage DC 48 V
Motor holding torque 1.4 Nm
Max. speed 1,940 1/min
Stepper angle at full step 1.8 deg
Stepper angle tolerance ±5 %
Nominal motor current 5 A
Voltage constant, phase 25.5 mVmin
Winding resistance phase 0.25 Ohm
Winding inductance phase 0.95 mH
Mass moment of inertia of rotor 0.48 kgcm2
Overall mass moment of inertia at power take-off 0.48 kgcm2
Product weight 1,200 g
Permissible axial shaft load 10 N
Permissible radial shaft load 52 N
Rotor position sensor Incremental encoder
Rotary position encoder interface RS422 TTL AB-channel + zero index
Rotary position encoder measuring principle Optical
Brake holding torque 1 Nm