The SH31004P0BF4000 is a Schneider Electric SH3 series servo motor with an integrated holding brake, rated for 2.5 kW continuous power and 12 N·m holding torque. The brake holds the vertical axis in position when power is removed — a common requirement for Z-axis or gravity-loaded applications where the load must not drift after a stop. The nominal torque varies with the supply voltage: 9.5 N·m on 230 V single-phase, 7.9 N·m on 400 V three-phase, and 6.9 N·m on 480 V three-phase. The peak stall torque reaches 40.5 N·m across the 115...480 V three-phase range, so the motor can deliver short bursts of high torque for acceleration or overcoming static friction. The nominal speed also depends on the supply: 1500 rpm at 230 V single-phase, 3000 rpm at 400 V three-phase, and 3600 rpm at 480 V three-phase. This means the same motor frame can serve different line voltages, but the speed-torque curve shifts — you size the drive and gearing for the actual supply voltage on site.
Absolute multiturn Hiperface DSL encoder — no homing cycle needed after power loss
The motor carries an absolute multiturn Hiperface DSL encoder. Because it tracks position over multiple revolutions even when unpowered, the controller knows the exact shaft position at power-up — no homing sequence, no reference run. This saves cycle time on machines that power-cycle between shifts or after a fault. The encoder communicates over the Hiperface DSL protocol, which combines power and data on a single cable pair. That means fewer wires in the cable track and a simpler connector interface compared to separate encoder and motor power cables.
IP65 motor body, natural convection — no fan, no filter to clean
The motor enclosure is rated IP65 per IEC 60034-5, meaning it is dust-tight and protected against low-pressure water jets from any direction. The shaft bushing without the shaft seal ring drops to IP54 — if the application sees direct washdown aimed at the shaft exit, fit the optional seal ring to keep the rating. Cooling is by natural convection — no fan, no filter, no forced air. This eliminates a maintenance item and keeps the motor envelope clean, but the thermal budget depends on the mounting surface and ambient air movement. The motor's continuous stall torque of 10 N·m (115...480 V three-phase) assumes free convection in still air at rated ambient.
Smooth shaft, 100 mm flange — mounting and coupling considerations
The shaft is smooth (no keyway) with a 24 mm diameter and 50 mm length. A smooth shaft means the coupling or pulley must use a clamping or friction-fit method — no key to transmit torque. Verify the coupling bore and clamping mechanism match a 24 mm smooth shaft before assembly. The motor flange size is 100 mm (3.9 inches) with an international standard flange pattern. Mounting holes are 9.0 mm diameter on the flange, and the centring collar depth is 3.5 mm. The overall length of the motor body is 307.5 mm (12.1 inches).
For current pricing and availability, submit an RFQ against this order code. The supply posture is confirmed at quote time — no stock-holding claim is made here.