The METSEEM3561A is a PowerLogic EM3561A energy meter from the EM3500 series, designed for sub-billing and partial metering in 3P+N networks at 50/60 Hz. It accepts Rogowski coil input from 50 to 5000 A and delivers Class 0.5S accuracy on power and energy per IEC 62053-22 and ANSI C12.20. The backlit LCD shows per-phase voltage, current, power, power factor, and cumulative energy logs. Communication is via RS485 with BACnet MS/TP at 9600 to 115200 baud, auto-detected.
The 50...5000 A Rogowski coil input means this meter works with split-core or flexible CTs — no need to break the primary conductor for installation. The 0.5S accuracy class (IEC 62053-22 / ANSI C12.20) is the standard for revenue-grade sub-metering; it's what a utility or tenant billing application expects. The 90...347 V rated voltage covers 120/208 V, 277/480 V, and 347/600 V wye services without a PT, as long as the line-to-neutral voltage stays under 347 V. The RS485 BACnet MS/TP port lets the meter talk directly to a building management system or PLC without a gateway.
Mounts on DIN rail or by screws using the clip-on tabs. The 107 mm width (4.2 in) and 59 mm depth (2.3 in) fit a standard 4-module DIN-rail slot. The screw-terminal RS485 block is on the underside; wire it before snapping the meter onto the rail. The backlit LCD and five-digit display are readable through a panel cutout if you flush-mount it. The dark grey housing blends with the rest of the PowerLogic lineup.