... suitable for AC 50Hz 1,140V and DC 1,000V, and mainly used for start, braking & timing of motor RQ series resistor is ... suitable for AC 50Hz 1,140V and DC 1,000V,and mainly used for the start, braking and timing of motors. ZX37 series resistoris ... safe and reliable, anti-corrosive, with stable non inductive resistance value ...