Speed and torque across the supply range
The SH31402P11F1200 delivers 750 rpm at 115 V single-phase, 1500 rpm at 230 V single-phase, 3000 rpm at 400 V three-phase, and 3600 rpm at 480 V three-phase — the speed is set by the supply voltage, not a parameter. Nominal torque drops as voltage rises: 164.6 lbf.in at 115 V single-phase, 108.9 lbf.in at 400 V three-phase, and 85.9 lbf.in at 480 V three-phase. The drive must be sized for the full-load current at the target operating point. Continuous power is 3900 W, but nominal output power varies from 1460 W at 115 V single-phase to 3860 W at 400 V three-phase. The motor's thermal limit is 3900 W; the actual output depends on the drive supply and duty cycle.
Brake torque and vertical-load safety
The holding brake delivers 203.6 lbf.in (23 N.m) — this is the torque that holds the load at rest with the motor de-energized. For a vertical axis, the load torque at the motor shaft must stay below this value to prevent drift when power is removed. The brake is spring-applied, power-released; it engages on power loss or drive disable. Peak stall torque is 531.9 lbf.in (60.1 N.m) across the 115...480 V three-phase range — this is available for acceleration and deceleration only, not continuous duty. The continuous stall torque is 172.6 lbf.in (19.5 N.m) over the same voltage range.
Encoder feedback and positioning
The absolute single-turn SinCos Hiperface encoder reports position within one revolution at power-up — no homing sequence is needed for single-turn applications. For multi-turn position, an external battery-backed multi-turn encoder or a separate absolute multi-turn device is required. The SinCos analog tracks give fine interpolation for velocity and position loops. The torque constant is 1.47 N.m/A at 248 °F (120 °C) hot winding temperature — the drive current loop must be tuned for this value. The back EMF constant is 101 V/krpm at 68 °F (20 °C); at 3000 rpm the back EMF reaches ~303 V, so the drive DC bus must be at least 340 V to deliver current into the motor.
Environmental sealing and mechanical limits
IP65 on the motor body and shaft bushing, IP67 on the housing — the motor survives washdown and hose-directed water, but the shaft bushing seal is the weaker point. The shaft bushing is rated IP65, not IP67, so high-pressure washdown directed at the shaft seal may breach it. The housing is fully IP67. Maximum radial force at the shaft is 2240 N at 1000 rpm, derating to 1550 N at 3000 rpm. Maximum axial force is 300 N — this motor cannot support significant thrust loads. For belt-drive or leadscrew applications with axial loads above 300 N, an external thrust bearing is required.
The motor uses a 140 mm international standard flange, 24 mm shaft diameter with parallel key, and a straight electrical connector. The mounting holes are 0.4 in (11 mm) diameter on the flange. The overall length is 12.2 in (310.5 mm).