The SSW-200-OGS-12000 from Surrey Satellite Technology is a Reaction Wheel with a design life of 15 years in geostationary orbit. This reaction wheel has a torque of 200 mNm and a momentum of 12 Nms. It has a speed range of +/- 5000 rpm and a speed accuracy of 0.4166 rpm. The reaction wheel features regenerated power returns back to the spacecraft bus and is designed using fully integrated radiation hard electronics. It supports RS-485 communication interface and a single male socket (D-type) 25-way electrical interface. The reaction wheel requires a supply voltage of 23.5-52.5 V and has a maximum power consumption of 180 W. It has a mass of less than 5.6 Kg and a wheel volume of 240 x 95 mm (diameter).
