ABB B24 is a 3-phase compact current transformer meter, which is suitable for situations where currents are high and direct metering is not possible. It is equipped with a backlit display that provides information about active energy, current, voltage, power factor and frequency. By using ABB B24 together with Elvaco's external Meter Connectivity Modules CMeX20 or CMeX20w, meter data can be converted to M-Bus/Wireless M-Bus and delivered to a receiving system.