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The NK Technologies APN Series digital power monitor measures 3 phases of current and voltage and computes 14 values to track power usage in the RS485 Modbus RTU format. It uses current transformers to measure the amperes; the line voltage connects directly to the transducer, up to 600VAC. The unit is compatible with a range of programmable logic controllers and fits seamlessly into industrial communications networks. It can be configured to accept standard 5-amp current transformer inputs or sensors producing 333mVAC proportional to the AC current of the circuit.
NK Technologies; 800-959-4014; www.nktechnologies.com