The Schneider Electric Acti 9 iEM3210 is a compact, self-powered rail-mount energy meter designed for sub-metering, cost allocation, and energy monitoring in commercial and industrial installations. With a 125A capacity, 5-module DIN rail width, and MID-certified accuracy compliance (IEC 61557-12, IEC 62053-21/22, IEC 62053-23, EN 50470-3), it delivers reliable consumption data with built-in anti-tamper security. Its graphical display and pulse output interface make it ideal for facilities managers, building services, and electrical contractors who need accurate metering and billing functionality.