LEM AHR 1000 B420, Current Sensor | AHR 1000 B420

The LEM True RMS Signal Conditioner with 1000 A nominal value offers advanced measurement capabilities for currents ranging up to 2000 A and utilizes DC TRMS 4 to 20 mA for secondary nominal signal output. Designed to handle both AC and DC primary signals, it operates with an external unipolar DC supply voltage ranging from 20 to 50 V. With an impressive accuracy of 1%, this unit is highly reliable even in extreme operating temperatures, ranging between -40 °C and 70 °C. Its open loop Hall effect technology ensures precise current measurement, and the device is built for durability with mounting options on primary fastening panels.

DC + distorted AC waveform currents measurement

True RMS output

Busbar or panel mounting

Split core type

Insulating plastic case recognized according to UL 94-V0