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Product description
The Siemens 1PH7103-2ND03-0CA0 is a force-ventilated asynchronous servomotor from the 1PH7 series in frame size 100. The Siemens catalog data list the D winding of this frame size with 3.7 kW rated output at a rated speed of 1,000 min⁻¹. The associated rated torque is 35 Nm, rated current is 10 A and rated voltage is 343 V. The documented rated frequency is 35.6 Hz. Field weakening starts at 1,800 min⁻¹, while the specified maximum speed is 9,000 min⁻¹. Rotor moment of inertia is 0.017 kgm². The catalog table also lists a power factor of 0.82, magnetizing current of 4.8 A and efficiency of 0.794. The motor is a three-phase squirrel-cage unit within the Siemens 1PH7 family. The first digit 2 in the variant block denotes the version with a separate blower. Encoder code N identifies a 1 Vpp sine/cosine incremental encoder without C and D tracks. Code 03 defines mechanical construction IM B35 with foot and flange mounting. Suffix 0 identifies the version without a holding brake. Siemens specifies protection rating IP55 and axial forced ventilation for the 1PH7 family. The dimensional drawing for 1PH7103 in IM B35 specifies an overall length of 411 mm without brake, a flange diameter of 250 mm and an overall height of 220 mm. The shaft center is 100 mm above the mounting surface. Flange bolt-circle diameter is 215 mm and centering diameter is 180 mm. The shaft end has a diameter of 38 mm, a length of 80 mm, an M12 center thread and a 10 mm keyway. The documented motor weight is 40 kg. The complete order number, winding code, encoder, construction and mechanical dimensions define this variant.
Example image – The item supplied will have the stated manufacturer or type number and the stated condition category. Serial number, manufacturing date, labels, colour, packaging and normal signs of use or storage may differ. Specifications
| Manufacturer | Siemens |
|---|---|
| Product series | 1PH7 |
| Manufacturer/order/identification number | 1PH7103-2ND03-0CA0 |
| Motor type | Three-phase asynchronous servomotor with squirrel-cage rotor |
| Frame size | 100 |
| Rated output | 3.7 kW |
| Rated speed | 1,000 min⁻¹ |
| Rated torque | 35 Nm |
| Rated current | 10 A |
| Rated voltage | 343 V |
| Rated frequency | 35.6 Hz |
| Maximum speed | 9,000 min⁻¹ |
| Field-weakening speed | 1,800 min⁻¹ |
| Cooling | Axial forced ventilation |
| Encoder | 1 Vpp sine/cosine incremental encoder without C and D tracks |
| Construction | IM B35, foot and flange mounting |
| Protection rating | IP55 |
| Moment of inertia | 0.017 kgm² |
| Dimensions | 411 mm overall length, 250 mm flange diameter, 220 mm overall height |
| Weight | 40 kg |
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Which rated data are documented for the Siemens 1PH7103-2ND03-0CA0?
The documented data are 3.7 kW rated output, 1,000 min⁻¹ rated speed, 35 Nm rated torque, 10 A rated current and 343 V rated voltage.
Which mechanical construction does the 1PH7103-2ND03-0CA0 have?
Code 03 denotes IM B35 with foot and flange mounting. The drawing specifies 411 mm overall length, 250 mm flange diameter and 220 mm overall height.
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