CURRENT AND VOLTAGE MONITORING UNIT BEING A REPLACEABLE UNIT OF THE POWER FEED EQUIPMENT. IT INCLUDES THE POTENTIAL DIVIDER USED BY THE DIGITAL VOLTMETERS TO MONITOR THE OUTPUT VOLTAGE. SOME VERSIONS ALSO INCLUDE RELAYS TO OPEN CIRCUIT THE CABLE HEAD. THE UNIT IS 120mm x 240mm x 300mm.

CLASSIFICATION IS DETERMINED BY THE PROVISION OF GENERAL INTERPRETATIVE RULES 1 AND 6 AS WELL AS THE TEXT OF HEADINGS 9030 AND 903031.