Three-phase servo with a flat torque curve across line voltages
The SH31002M11A1200 is a three-phase SH3-series servo motor rated for 1.1 kW continuous power. Its nominal torque stays nearly flat across the voltage range — 5.28 N·m at 400 V three-phase and 5.28 N·m at 480 V three-phase — so the application sees consistent force regardless of whether the line runs at 400 V or 480 V. The speed envelope shifts with supply: 2000 rpm at 400 V three-phase, 2400 rpm at 480 V three-phase. At 115 V single-phase the motor delivers 500 rpm; at 230 V single-phase it reaches 1000 rpm. This voltage-dependent speed profile means the motor can be commissioned on a lower-voltage line for setup or light duty, then moved to a full three-phase supply for production speed.
Encoder choice drives drive compatibility — absolute single-turn Hiperface
The motor ships with an absolute single-turn SinCos Hiperface encoder. This is a digital position feedback protocol that communicates absolute position within one revolution — no homing sequence needed on power-up. The SinCos analog track provides fine interpolation for velocity control. The drive must support Hiperface interface; common Schneider Lexium drives in the same family are a natural match. No holding brake is fitted on this variant. The motor relies on the drive's holding brake function or an external mechanical brake for standstill torque. If the application requires holding torque at power-off, specify the braked variant or add an external brake.
IP65 motor body, IP67 housing — washdown-ready with connector flexibility
The motor body and shaft bushing meet IP65 per IEC 60034-5, and the housing achieves IP67. The IP67 housing adds margin for occasional standing water on the enclosure surface. Two connector options are available: a rotatable right-angle connector or a straight connector. The rotatable version lets the cable exit in any orientation around the motor axis, which simplifies cable routing in tight panel layouts or on moving axes. The straight connector is the lower-profile option for fixed cable runs.
Rotor inertia and thermal limits — tuning and duty-cycle constraints
Continuous stall current is 2.5 A, with a peak output current of 9.0 A for 3 seconds. The thermal limit is set by the copper hot-spot temperature of 130 °C. Natural convection cooling means the motor relies on its own surface area and the ambient air — no fan or forced air is required, but derating applies if the motor is enclosed or mounted in a confined space.