Innovative design enables installer to pass the coil around the conductors, without having to disconnect existing wires. NK Technologies introduces ATCR Series Current Transducers. ATCR flexible loop current transducers are a perfectly matched and factory calibrated sensing coil and True RMS signal conditioner that use just two wires to provide the power supply and output signal, while eliminating the need to disconnect existing wires. This makes them a uniquely simple and convenient means of monitoring resistive or inductive loads to detect current usage on large machines using AC current up to 2000 amps. They meet UL508 and CE requirements, making them suitable for global application.