High-Power Permanent Magnet Brushless Motors, Servo Control Kits, Woodworking Machinery, Lathes, Drilling and Tapping Machines, Energy-Efficient Belt Sanders. 50W Brushless Servo Motor Kit Specifications. Model Brushless Servo Motor Control System Kit. Motor Torque? 4 N·m. Number of Pole Pairs 8 pairs. Input Frequency 50-60 Hz. Motor Type Permanent Magnet Brushless Servo Energy-Saving Motor. Insulation Class Class F. Speed Range 150 rpm-5000 rpm. Control Method Multiple options available, including knob speed control, button start, and foot pedal speed control. Protection Features Overcurrent, overvoltage, undervoltage, short-circuit, and stall protection. 1100W Brushless Servo Motor Kit Specifications. Motor Torque? 5 N·m. Number of Pole Pairs 8. Speed Range 150 RPM-3800 RPM. Protection Features Overcurrent, overvoltage/undervoltage, short-circuit protection, stall protection. ? Key Differences Comparison. 750W Kit 1100W Kit. Rated Power 750W 1100W. Maximum Torque? 4 N·m? 5 N·m. Maximum Speed 5000 rpm 3800 rpm. Common Features Voltage, frequency, number of pole pairs, insulation class, control method, and protection me.