The NMI/Sub-billing digital meter is a 63A direct connect 240 V, single phase meter. It features 1 digital pulse output and an RS485 port with Modbus RTU protocol. The meter has an accuracy class of 1 according to IEC62053-21 standards. With its 6 1/2 digit LCD display, the meter can show measurements up to 999999.9 kWh. It also offers multifunction measurements on the display. The meter is self-powered, eliminating the need for external control power. It has a solid-state energy pulse output and is two modules wide for easy DIN rail mounting.