ARU Series

Unique, IP68, ruggedized outdoor flexible split-core AC current sensor implementing high accuracy Rogowski Coil technology.

Class accuracy 0.5 according to IEC 61869-10 and IEC 61869-6 regardless of primary conductor position
Better than 0.75% accuracy regardless of the primary conductor’s position
Rated insulation voltage 1kV CATIII
From 1 to 300000 ARMS
Flexible split-core current sensor for easy installation anywhere
Almost perfect linearity, no saturation, no upper limit in current rating
Internal shield
Low output voltage proportional to the rate of change (derivative) of the primary current (electronic integrator required): 100 mV/kA @ 50Hz

10.4 mm gauge with sensing apertures of Ø 70mm to 300mm
UV, water, dust and ice resistant for outdoor installations
Bandwidth: 50/60 Hz
Operating range: -40°C to +80°C
Fast clip-on mounting whilst cable is connected
Robust and fast ‘Twist and Click’ closure.
Slot expected to fix the loop on conductor with a cable tie
Ø 2.4 mm hole to pass a security seal
Distribution network applications such as Distribution Automation for Fault Detection, Isolation & Restoration, Grid Monitoring (e.g. Intelligent substations), Protection & Safety, Distribution Transformer Monitoring, Distribution Automation for Voltage Control and Power Quality