CR Magnetics, Inc. Current Sense Transformers CR8420-1000

The CR8420-1000 Current Sense Transformer from Win Source Electronics is designed for applications such as motor load measurement, power meters, high-frequency current sensing, and ground fault sensing. It features a high turns ratio and is available with custom lead lengths. The transformer can handle a maximum continuous primary current of 50A and has an insulation voltage rating of 3500 Vac for one minute. The operating temperature range is from -40°C to +85°C for general purpose and nickel designs, and -40°C to +65°C for high-frequency applications. The device is recognized under IATF 16949:2016 standards, ensuring compliance with quality management systems in the automotive sector. Engineers considering this transformer should note its effective turns ratio and the importance of selecting the appropriate resistance for optimal linearity in measurements.