Hold position, speed envelope, and continuous torque
The Schneider Electric SH30553P1AF4000 is the 55 mm flange servo with integrated holding brake in the SH3 family, sized at 1.1 N.m nominal torque and 680 W continuous output on the 400 V three-phase supply — and on a single-phase 230 V feed it still turns 4000 rpm, drops to 1.1 N.m nominal, and delivers 390 W. Peak stall reaches 3.5 N.m across the full 115 to 480 V three-phase range for the acceleration pulses the sizing sheet asks for.
Feedback, connection, and shaft geometry
Feedback is absolute single-turn Hiperface DSL over the single quick-lock rotatable right-angle connector — one cable carries power and feedback back to the drive, which simplifies the cabinet gland plate and removes the encoder cable run that a second connector would need. Shaft is 9 mm diameter with a 3 mm parallel key, 20 mm long, on the 40 mm centring collar — the standard coupling stock (9 mm bore, 3 mm keyway) drops straight on.
Drive-side electrical constants for commissioning
Back EMF constant is 41 V/krpm at 20 °C and torque constant is 0.62 N.m/A at 120 °C — the Ke/Kt ratio is the sanity check during commissioning; the drive's auto-tune should land close to that 66 V/krpm equivalent at the hot winding figure. Stator resistance is 10.4 Ohm with 13.02 mH inductance, three poles, and the copper-hot ceiling is 130 °C, so continuous stall current of 1.7 A (peaking at 6.5 A Irms) sits comfortably inside the 480 V drive's current loop when sized against 680 W mechanical output.
Shaft load limits and cooling
Shaft load budget is 660 N radial at 1000 rpm derating linearly downward with speed, and 80 N axial — enough for a small pinion or a direct-coupled gearbox input without an external bearing support. Cooling is natural convection only, which means the cabinet or housing around the motor needs a clear air path; if the motor ends up buried in an enclosure with no air movement, the 680 W continuous figure must be derated.
Sourcing reality for the SH30553P1AF4000
Lifecycle status on the SH3 family is current production per the manufacturer record — the part is specified into new machine builds, not sourced as legacy. The part ships through independent distribution on a quoted-to-order basis; pricing and lead time confirm at RFQ against the build quantity.