Carlo Gavazzi A82-20-100 (A8220100) is an AC current transducer in the A82 family designed for monitoring relays and energy-management interfaces. It accepts up to 100 A on its primary and outputs a 4-20 mA DC signal proportional to the sensed current, with two-wire loop-powered operation (powered by the current loop). The device is wall-mountable and has compact dimensions of 95 mm (L) × 67.5 mm (W) × 20 mm (H). It follows IEC 60381-1 for current-output variants (A82-10/20) and IEC 60381-2 for voltage-output variants, and is compatible with Carlo Gavazzi EM21 72 V energy meters.
