The Pulse Electronics part PB0027NL is a current transformer designed for high voltage and high current applications. It has a 1:200 turns ratio and can handle up to 500Vrms. With a primary DC resistance of 0.00042 Ohm and a secondary DC resistance of 2.9 Ohm, it offers excellent accuracy and low power losses. This current transformer has 10 terminal gull wing SMD configuration, making it easy to mount and integrate into various electronic systems. It is capable of handling up to 35,000mA of current, making it suitable for demanding industrial applications where precise current measurement and monitoring are critical.