Respectively, QSY 260B and QSY 260C EcoDyn series offer stall torque of 85.0 Nm and 120.0 Nm, rated power of 12 or 10.8 kW and 16 or 14.4 kW, rated torque of 57.3 or 507.1 lb-in. and 76.4 or 676.2 lb-in., and rated current of 21.5 or 19.4 A and 28 or 25.2 A. Synchronous motors offer low torque ripple for speed stability and positioning accuracy. Rotor moment of inertia enables max acceleration and high load inertia. Rated speed is 2,000 min-1 in EcoDyn mode and max speed is 3,000 min-1.