MICROMASTER 4 Braking resistor 380-480 V 390R 2000W PK 100W cont. 230x 72x 43.5 mm HxWxD IP20 Braking resistor SINAMICS braking resistor base component for the G120C compact converter. The braking resistor allows the converter to actively brake loads with high moments of inertia. The braking resistor as a base component is available in frame size FSAA in a power range between 0.55 kW and 1.5 kW. SINAMICS – simply my drive!