Described as a convenient way to measure current in three phases, the RCTrms three-phase current transducer is from Power Electronic Measurements (PEM).

It features a thin, clip-around, flexible sensor coil and provides true RMS measurement with 4 to 20mA or 0 to 5V output. The compact, DIN-rail or panel mountable transducer connects to three Rogowski coils to capture measurements from three current phases simultaneously. With 18 current ratings options from 100 to 50,000 A, and a choice of 300, 500, 700mm or custom coil lengths, it can be used in a variety of SCADA systems, PLCs, data loggers, protection equipment or motor controllers.

The clip-around coil design allows fast and easy positioning for results without needing to be centralised around the conductor. An isolated BNC-BNC cable-split option is also available, to ease installation such as when threading through existing conduit.