{"product_id":"siemens-1fk7101-2ac71-1qa0-1fk7-ct-servo-motor","title":"Siemens 1FK7101-2AC71-1QA0 SIMOTICS S 1FK7-CT 4.3 kW 27 Nm 2000 rpm Servo Motor","description":"\u003cp\u003eThe Siemens 1FK7101-2AC71-1QA0 is a SIMOTICS S 1FK7-CT synchronous servo motor rated 4.3 kW, delivering 27 Nm standstill torque (M0, 100K duty) at a 2000 rpm rated speed with an 8-pole, 9.7 A design. It is naturally cooled, IMB 5 flange-mounted, and fitted with an absolute single-turn 20-bit encoder on a DRIVE-CLiQ interface, IP64-rated, without a holding brake.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrder Number (MLFB)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1FK7101-2AC71-1QA0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSIMOTICS S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Designation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1FK7-CT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Power (PN)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.3 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Torque (M0, 100K)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e27 Nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Speed (NN)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2000 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDC Link Voltage (UDC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e600 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNumber of Poles\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9.7 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMoment of Inertia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e79.000 kgcm2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEfficiency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e93.0 percent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorque Constant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.15 Nm\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Constant at 20C\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e144.5 V per 1000 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWinding Resistance at 20C\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.34 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRotating Field Inductance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8.5 mH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eElectrical Time Constant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25.00 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMechanical Time Constant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.62 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThermal Time Constant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60 min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShaft Torsional Stiffness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e164,000 Nm\/rad\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet Weight of the Motor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e23.0 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e23.001 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShaft Height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCooling\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNatural cooling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRadial Runout Tolerance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.050 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConcentricity Tolerance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAxial Runout Tolerance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDegree of Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHousing Color\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAnthracite RAL 7016, standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEncoder\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAbsolute single-turn 20-bit, DRIVE-CLiQ interface, type AS20DQI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptimum Speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2,000 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIMB 5 (IM V1, IM V3), flange, 1 rotatable power connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShaft\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFeather key, tolerance N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHolding Brake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHS Code\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e85015220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eSelection Notes\u003c\/h2\u003e\u003cp\u003eThe -2AC71 code sets this motor to a 2000 rpm rated speed within the 1FK7-CT line, against the -2AF71 winding rated to 3000 rpm at the same 27 Nm standstill torque; the 2.15 Nm\/A torque constant on this 2000 rpm winding gives more torque per amp than the higher-speed alternative. The -1QA0 suffix means no integrated brake, so moment of inertia stays at 79.0 kgcm2 and motor weight at 23.0 kg, lower than the brake-equipped configuration in this frame, which helps keep the 1.62 ms mechanical time constant responsive. Choose this non-brake configuration for horizontal axes or where an external holding mechanism already covers position retention when power is removed; for vertical or gravity-loaded axes, the holding-brake version of this motor is the correct choice. The 164,000 Nm\/rad torsional stiffness and 60-minute thermal time constant, higher than the smaller 1FK7084 and 1FK7100 frames in this comparison, support sustained torque output at this power level.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":53960360395035,"sku":"1FK7101-2AC71-1QA0","price":2400.27,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/siemens-1fk7101-2ac71-1qa0-1fk7-ct-servo-motor.png?v=1789757952","url":"https:\/\/stoklink.com\/products\/siemens-1fk7101-2ac71-1qa0-1fk7-ct-servo-motor","provider":"Stoklink","version":"1.0","type":"link"}