The RCMC 500 HV from Vishay is a Power Resistor with Resistance 0.27 to 18 ohm, Tolerance ±1 to 10 %, Power Rating 750 W, Voltage Rating 12000 V, Temperature Operating Range -55 to 125 Degree C. Tags: Screw Mount. More details for RCMC 500 HV can be seen below.