Danaher Corporation Current Sensors LA 55-P/SP1

The Current Transducer LA 55-P/SP1 is designed for the electronic measurement of DC, AC, and pulsed currents with galvanic isolation between the primary and secondary circuits. It has a primary nominal current rating of 50A and a measuring range of ±100A. The device features a closed-loop design utilizing the Hall effect and is suitable for PCB mounting. The transducer operates with a supply voltage of ±12V to ±15V and has a secondary nominal current output of 25mA. It offers high accuracy with a typical error of ±0.65% at nominal current and a linearity error of less than 0.15%. The response time is optimized, with a reaction time of less than 500ns and a frequency bandwidth of DC to 200kHz. The operating temperature range is from -40°C to +85°C, and it has robust isolation characteristics, including a 2.5kV AC isolation voltage and a 4.5kV impulse withstand voltage. The transducer is compliant with safety standards EN 50178 and IEC 61010-1, making it suitable for various industrial applications, including AC variable speed drives, uninterruptible power supplies, and switched-mode power supplies.