The SH30703P0AF4000 is a Schneider Electric SH3-series servo motor with an integrated holding brake, designed for precision motion control in packaging, material handling, and general automation axes. It delivers 1330 W continuous power at 400 V three-phase input, with a nominal speed of 6000 rpm at that voltage — the speed steps up from 3000 rpm at 230 V single-phase to 7200 rpm at 480 V three-phase, so the actual line voltage sets the available top speed. The absolute single-turn Hiperface DSL encoder means the controller knows the shaft position immediately on power-up — no homing routine, no battery-backed multiturn count. For a machine that cycles through the same positions every revolution, this saves the homing time on every power cycle. The holding brake delivers 3 N.m holding torque — enough to keep a vertical load from dropping when the drive is disabled, but not a dynamic braking function. The brake pull-in power is only 7 W, so a standard 24 VDC drive brake output can supply it without an external relay.
Torque and inertia — sizing the drive and the coupling
Peak stall torque is 11.3 N.m at 115-480 V three-phase, while continuous stall torque is 2.94 N.m — a 3.8x overload margin for short-duration acceleration moves. The nominal torque at 400 V three-phase is 2.1 N.m, so the motor can sustain that continuously at rated speed. The torque constant is 0.72 N.m/A at 120°C copper temperature — this is the hot value, so the drive current limit should be set using this figure, not a cold-room number. Back EMF constant is 49 V/krpm at 20°C; the drive's voltage bus must accommodate the back EMF at top speed plus the IR drop.
Mechanical fit — flange, shaft, and environmental sealing
The motor uses a 70 mm international standard flange (2.8 in) with a 2.5 mm centring collar depth and 5.5 mm mounting holes — this matches the common IEC 72-1 frame pattern for servo motors in this power class. Overall length is 246 mm (9.7 in), which matters for tight cabinet layouts. The shaft is smooth, 14 mm diameter, 30 mm long — no keyway, so a clamping-type coupling or collet is required. Maximum radial force is 1050 N at 1000 rpm, and maximum axial force is 160 N; these set the bearing load limits for belt drives or direct coupling. IP65 on the motor body (IEC 60034-5) means it resists dust ingress and low-pressure water jets — suitable for washdown areas in food processing. The shaft bushing without a shaft seal ring drops to IP54, so if the shaft is exposed to direct spray, an external shaft seal or cover is needed.
Electrical connection and cooling
The electrical connection uses a rotatable right-angled connector with Quicklock — the cable exit angle can be adjusted after the motor is mounted, and the Quicklock mechanism secures it without tools. This saves time during installation and makes cable routing cleaner. Cooling is by natural convection — no integrated fan. The motor relies on the mounting surface and ambient airflow for heat dissipation. In a confined cabinet or high-duty-cycle application, check that the mounting plate acts as a heatsink or add forced air. Stator resistance is 2.7 Ohm and stator inductance is 7.3 mH — these values are needed for the drive's auto-tuning routine to set current loop gains correctly. Maximum continuous current is 17.0 A, and the same figure applies for the 3-second peak current, so the drive must be sized to supply 17 A for acceleration without tripping.
For BOM freeze or second-source planning, the SH3 series is the active line; no pin-compatible alternative from another manufacturer is documented.