Siemens 1PH8103-1AD00-2BA2 SIMOTICS M-1PH8 Compact Asynchronous Motor 3.7kW 1000rpm IP55

The Siemens 1PH8103-1AD00-2BA2 is a SIMOTICS M-1PH8 compact asynchronous motor rated 3.7 kW at 1,000 rpm with 35 Nm and 10 A at 333 V. Output climbs to 5.2 kW at 1,500 rpm across its four duty points as voltage rises to 470 V and current eases to 9.7 A. Forced ventilation and IP55 protection carry a Pt1000 winding temperature sensor.

Technical Specifications

Selection Notes

This is a low base-speed variant, rated 1,000-1,500 rpm, suited to applications needing high torque at low shaft speed without a reduction gearbox. Torque peaks at 36 Nm at the 1,150 rpm point before easing to 33 Nm at 1,350-1,500 rpm, while current eases slightly from 10 A to 9.7 A over the same range. The Pt1000 sensor lets the drive trip on actual winding temperature instead of a thermal model. IP55 sealing, forced ventilation, and fixed-bearing construction at vibration severity grade R/A suit continuous, enclosed machine-tool duty.

Applications

Forced ventilation and IP55 sealing suit enclosed machine-tool bases rather than open, exposed mounts. The 33-36 Nm torque band at 1,000-1,500 rpm fits direct-coupled low-speed spindle or feed-axis applications where gearing down from a higher-speed motor is undesirable.