Air-core split or solid core current transformers for AC current monitoring in smart grid and automation applications. AK provides RMS output in current or voltage format for standard sinusoidal AC monitoring; AKR extends to True RMS for accurate measurement on distorted waveforms including VFD outputs, SCR phase-angle and burst-fired loads, and switching power supplies. Both series are jumper-configurable across multiple ranges in a single device; loop-powered for 4-20mA models; selected AKR models (AKR 2000) include a 76mm diameter aperture for larger conductors.

Applications include automation SCADA current feedback, self-powered data loggers, panel meters, and renewable energy current m