Motor rating at 400/480 V three-phase — where the torque lives
The SH30703P0AA4100: This SH3-frame servo delivers 1330 W continuous power and 2.8 N·m nominal torque at 3000 rpm when fed from a 400 V or 480 V three-phase supply. At 230 V single phase it drops to 830 W and 2.8 N·m at the same speed. Peak stall torque hits 11.3 N·m across the 115-480 V three-phase range, with a continuous stall torque of 2.94 N·m — the 3.8× peak-to-continuous ratio means it handles short acceleration bursts without oversizing the motor frame. Maximum Irms is 17.0 A; continuous stall current is 4.1 A. The 0.72 N·m/A torque constant at 120 °C hot copper gives a direct conversion for drive current limit settings.
Encoder, feedback, and connection — what the drive needs to see
Absolute single-turn Hiperface DSL encoder — no homing sequence needed at power-up; the drive reads position immediately. Single-turn means resolution covers one revolution; multi-turn would be needed for applications requiring absolute position over multiple rotations. Electrical connection is a quick-lock rotatable right-angled connector — the cable exit angle can be oriented after installation, useful when the motor is mounted in a tight cabinet corner or against a machine frame.
Mechanical fit — flange, shaft, and sealing
70 mm flange (IEC standard) with a 60 mm centring collar and 2.5 mm collar depth. The 14 mm smooth shaft (no keyway) is 30 mm long — coupling selection must account for keyless transmission, typically a clamp-type or friction-lock hub. IP65 on both the motor body and the shaft bushing per IEC 60034-5 — the seal at the shaft exit is rated for hose-directed water, so this motor can be mounted in washdown zones or outdoors without a protective shroud.
Thermal and electrical model for drive tuning
Back EMF constant is 49 V/krpm at 20 °C; this sets the voltage ceiling at rated speed — a 480 V drive has headroom for field weakening if the application needs speed above 3000 rpm. Natural convection cooling — no fan. Continuous torque at low speed is limited by the winding temperature (hot copper 130 °C). In a stalled or creep-speed duty cycle, the 4.1 A continuous stall current is the thermal limit; above that, duty-cycle derating applies.