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Product description
The rated point of Siemens 1FT5138-0SA71-2-Z is 1,200 min⁻¹, while its maximum speed is 1,900 min⁻¹. This permanent-magnet three-phase synchronous servomotor belongs to the force-ventilated 1FT5 frame size 132 and is specified for a 600 V DC link. At 100 K, the rated data is 170 Nm and 67 A. Stall torque is 140 Nm at 60 K or 185 Nm at 100 K, with corresponding stall currents of 52 and 69 A. The range table lists maximum values of 420 Nm and 194 A. Torque constant is 2.70 Nm/A; for one phase, winding resistance is 0.11 Ω and rotating-field inductance is 3.2 mH. For feedback, the motor combines an integrated analogue tachogenerator with magnetic rotor-position sensing. Force ventilation complements the IM B5 construction, which is also assigned to IM V1 and IM V3. The cylindrical shaft has a keyway and key, tolerance field k6 and full-key balancing. Rotor moment of inertia without brake is 0.0905 kgm², and the thermal time constant is 100 minutes. The dimensional drawing for the force-ventilated 1FT5138 version shows a length of 764 mm, a square flange measuring 260 × 260 mm, a flange diameter of 250 mm and a shaft measuring 48 mm in diameter and 82 mm in length. A conservative product-specific estimate gives a weight of ca. 155 kg.
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 range | Siemens 1FT5 |
| Manufacturer/order/identification number | 1FT5138-0SA71-2-Z |
| Motor type | Permanent-magnet three-phase synchronous servomotor |
| Construction | IM B5; also assigned to IM V1 and IM V3 |
| Frame size | 1FT5138, shaft height 132 mm |
| Cooling method | Force-ventilated |
| DC-link voltage | 600 V |
| Rated speed | 1,200 min⁻¹ |
| Rated torque | 170 Nm at 100 K |
| Rated current | 67 A |
| Stall torque | 140 Nm at 60 K; 185 Nm at 100 K |
| Stall current | 52 A at 60 K; 69 A at 100 K |
| Maximum speed | 1,900 min⁻¹ |
| Maximum values | 420 Nm; 194 A |
| Torque constant | 2.70 Nm/A |
| Encoder system | Analogue tachogenerator with magnetic rotor-position sensing |
| Rotor moment of inertia | 0.0905 kgm² without brake |
| Dimensions | 764 × 260 × 260 mm (L × W × H); flange Ø 250 mm; shaft Ø 48 × 82 mm |
| Weight | ca. 155 kg |
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Which torque and speed ratings apply to Siemens 1FT5138-0SA71-2-Z?
The rated point is 1,200 min⁻¹ and 170 Nm at 100 K. The specified maximum values are 1,900 min⁻¹, 420 Nm and 194 A.
What are the principal mechanical dimensions of 1FT5138-0SA71-2-Z?
The force-ventilated 1FT5138 version measures 764 mm in length and 260 × 260 mm at the square flange. The flange diameter is 250 mm, while the shaft measures 48 mm in diameter and 82 mm in length.
What applies if an item develops a defect within 14 days?
For the condition categories “Used, removed from an installation” and “New, old stock”, the contractual 14-day right of return in the event of a defect applies. The defect must occur within 14 calendar days after delivery and be reported in text form within the same period.
In particular, the REHA tamper-evident seal must remain fully intact and our RMA approval is required before return. In an accepted case, we decide between replacement and refund. Details in Section 11 of the Terms.
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No. There is no general B2B right of return, exchange, cancellation or withdrawal. Incorrect or duplicate orders and a lack of suitability or compatibility with the customer’s installation are not covered by the contractual 14-day right of return in the event of a defect. Details in Section 12 of the Terms.
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