Power consumption 2.5VA, 50/60Hz Accuracy class 1 20 or 30mm busbar mounting Suitable for circular conductors 24 aperture Maximum aperture for bar conductors 30x10mm (type 6) Operating temperature range –30 to +85°C Secondary terminals M5 studs with lock washers, nuts and terminal cover Full scale deflection currents can be selected by passing more than one conductor turn through the centre of the transformer, see adjacent table Protection to IP54 BS7627/IEC185 and IEC60044-1 Conforms to BS 3938-1973 and IEC CE marked in compliance with relevant European Directives Manufactured to ISO 9001