IEC 62052-31 Ed. 1.0 en:2015

IEC 62052-31:2015(E) specifies product safety requirements for equipment for electrical energy measurement and control. It applies to newly manufactured metering equipment designed to measure and control electrical energy on 50 Hz or 60 Hz networks with a voltage up to 600 V, where all functional elements, including add-on modules are enclosed in or form a single. It also applies to metering equipment containing supply and load control switches, but only those which are electromechanical in operation and is applicable to auxiliary input and output circuits.