Riedon, Inc. Chassis Mount Resistors RSW-125-50

The RSW-125-50 is a chassis mount precision current resistor designed for applications requiring accurate current measurement. It has a rated current of 125 Amps and operates with a standard output voltage of 50mV. The resistor features a tolerance of ±0.25% and is constructed from manganin, which provides a temperature coefficient of resistance of ±15 PPM/°C. This model is compact, with dimensions of approximately 2.75 inches in length and 1 inch in width, and is suitable for operating temperatures ranging from +30°C to +70°C, with a storage temperature range of -55°C to +80°C. The design includes center-mounted voltage taps and is made from flame-resistant materials. For continuous operation, it is recommended to derate the current to two-thirds of the rated value under normal conditions, especially at ambient temperatures above 40°C. The RSW-125-50 is suitable for applications where precise current sensing is critical, and it must be mounted in a manner that allows for adequate cooling to prevent overheating.