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- Siemens 1FK7081-2AH71-1QA0 SIMOTICS S 1FK7-CT 1.8 kW 12 Nm 4500 rpm Servo Motor Siemens 1FK7081-2AH71-1QA0 SIMOTICS S 1FK7-CT 1.8 kW 12 Nm 4500 rpm Servo Motor
Siemens 1FK7081-2AH71-1QA0 SIMOTICS S 1FK7-CT 1.8 kW 12 Nm 4500 rpm Servo Motor
Siemens 1FK7081-2AH71-1QA0 SIMOTICS S 1FK7-CT 1.8 kW 12 Nm 4500 rpm Servo Motor
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- Description
The Siemens 1FK7081-2AH71-1QA0 is a SIMOTICS S 1FK7-CT synchronous servo motor rated 1.8 kW with 12 Nm standstill torque at 100K and a 4,500 rpm rated speed. It runs on a 600 V DC link, mounts as IMB5 with a rotatable power connector, and carries an IP64 enclosure with an absolute 20-bit single-turn DRIVE-CLiQ encoder. No holding brake.
Technical Specifications
| SKU | 1FK7081-2AH71-1QA0 |
| Brand | Siemens |
| Series | SIMOTICS S |
| Product designation | 1FK7-CT |
| Rated power (PN) | 1.8 kW |
| DC link voltage (UDC) | 600 V |
| Standstill torque (M0) at 100K | 12 Nm |
| Rated speed (NN) | 4,500 rpm |
| Degree of protection | IP64 |
| Encoder | Absolute single-turn, 20-bit, DRIVE-CLiQ interface (AS20DQI) |
| Holding brake | None |
| Shaft | Feather key, tolerance N |
| Mounting | IMB5 (IM V1, IM V3), flange |
| Net weight | 12.9 kg |
Selection Notes
Against the 3,000 rpm version of the same 12 Nm frame, this 4,500 rpm winding trades standstill torque headroom for top speed — pick it when the move profile needs higher rapid-traverse velocity rather than sustained torque near zero speed. Weight is essentially unchanged at 12.9 kg, so it drops into the same mechanical envelope without a redesign.