ABB SmartMeter D13 D13 15-M 65 Modbus is a three phase energy meter with Modbus RTU, direct connection up to 65 A, four quadrant metering, class B accuracy for active energy according to MID directive and class 2 for reactive energy according to IEC 62053-23, one digital input and one digital output, only three DIN module in width and housing in recycled plastic.