103H7121-0443 by Sanyo Denki
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The 103H7121-0443 is a stepping motor manufactured by Sanyo Denki. Part of the StepSyn Stepping Motors series, it uses phase-shift drive and delivers pull-out torque from 0.54 to 5.5 N·m. It maintains constant speed without slip under load. It runs on direct AC mains with rated voltages of 100, 120 or 220 V.
Technical Specifications
Drive Method
Phase-shift drive with capacitor & resistor (1? AC)
Phase-shift drive with capacitor & resistor (1? AC)
Insulation Resistance
?100Â M? at DCÂ 500Â V
?100Â M? at DCÂ 500Â V
Motor Type
2-phase synchronous
2-phase synchronous
Power Supply
Direct AC mains, no external driver circuit
Direct AC mains, no external driver circuit
Pull-out Torque
0.54–5.5 N·m (model dependent)
0.54–5.5 N·m (model dependent)
Rated Current
0.15–0.9 A (model dependent)
0.15–0.9 A (model dependent)
Rated Voltage
100 V, 120 V or 220 V (model dependent)
100 V, 120 V or 220 V (model dependent)
Speed Consistency
Constant speed, no slip under load
Constant speed, no slip under load
Ultra-low Speed Operation
High torque at very low speeds
High torque at very low speeds
Withstand Voltage
1Â kVÂ AC for 1Â min, leakage ?1Â mA
1Â kVÂ AC for 1Â min, leakage ?1Â mA
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