Siemens 1PH8087-1AF00-2BA2 SIMOTICS M-1PH8 Compact Asynchronous Motor 3.7kW 1500rpm IP55

The Siemens 1PH8087-1AF00-2BA2 is a SIMOTICS M-1PH8 compact asynchronous motor built as a main spindle motor, rated 3.7 kW at 1,500 rpm with 23.6 Nm and 10 A at 336 V. Output rises to 5.3 kW at 2,200 rpm across its four duty points as voltage climbs to 480 V. Forced ventilation and IP55 protection carry a Pt1000 winding temperature sensor.

Technical Specifications

Selection Notes

This four-point winding covers 1,500-2,200 rpm without a gearbox change: the 336 V/1,500 rpm point is the base-load duty, while 480 V/2,200 rpm is the field-weakening top end where torque falls slightly to 23 Nm as speed rises. Current holds constant at 10 A across all four points, so drive sizing is set by voltage and speed range rather than by current. The Pt1000 sensor lets the drive trip on actual winding temperature instead of a thermal model. IP55 sealing with forced ventilation makes this the compact-frame choice for enclosed machine-tool spindle housings; heavier-frame motors in the same 1PH8 range step up torque and weight for larger spindle loads.

Applications

Forced ventilation and IP55 sealing suit enclosed machine-tool bases and spindle housings rather than open, exposed mounts. A constant 10 A across the first three duty points simplifies drive current sizing for VFD-driven spindle axes running mixed speeds.