Speed-torque map across supply voltages
The SH30703M11A2100: This SH3 frame servo motor delivers 3000 rpm nominal at 400 V three-phase supply, stepping up to 3600 rpm at 480 V three-phase. On single-phase 230 V it runs 1500 rpm, and on 115 V single-phase it drops to 750 rpm — the speed follows the line voltage, so the drive supply dictates the application's top speed. Nominal torque holds fairly flat across the voltage range: 2.63 N·m at 400 V and 480 V three-phase, versus 3.05 N·m at 115 V single-phase and 2.95 N·m at 230 V single-phase. The torque constant is 1.4 N·m/A at 120 °C copper temperature, which sets the current-to-torque relationship for the servo drive tuning. Continuous stall torque is 2.94 N·m across the 115–480 V three-phase range, with a continuous stall current of 2.1 A. Peak stall torque reaches 11.3 N·m, giving a 3.8× overload margin for acceleration and deceleration cycles.
Encoder feedback and mechanical fit
The absolute single-turn SinCos Hiperface encoder provides position feedback without needing a home cycle on power-up — the single-turn resolution is enough for applications where the load doesn't rotate more than one revolution from the reference. The straight connector and rotatable right-angled connector options let the cable exit adapt to tight cabinet layouts. Mounting uses an international standard flange with a 70 mm flange size and 60 mm centring collar. The shaft is 14 mm diameter with a parallel key, 30 mm shaft length, and the motor body length is 220 mm. Maximum radial force at the shaft nose is 730 N at 1000 rpm, derating to 400 N at 6000 rpm — budget this into the belt-drive or coupling selection.
Sourcing and lifecycle status
The SH3 series is a compact servo motor family; the sizing reference SH30703M identifies the frame and winding group. Confirm the mating drive's voltage class and encoder interface (Hiperface single-turn) before specifying.