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Series K4000 & KW4000

Three Phase Kilowatt Hour / kW Demand Meter

Series 4000 three phase kWh and kW Demand meters are processor based (driven by firmware) for metering electrical usage in commercial, industrial, military and / or institutional facilities. Using 25 PPM Mill Spec components these meters are +/- 0.2% accurate through a wide temperature range. All readings are stored in a RAM chip, without the use of batteries. All readings are direct read, without the use of multipliers. The maximum demand value is reset using a keyed switch. Revenue grade meters do not allow the reset of Kilowatt hours.

All Series 4000 meters come with one digital pulsed output and Modbus RS485 communications as a standard offering.

Connected to these meters are National Meterís labeled +/- 0.5% - 1% accurate solid core, split core or bar type current transformers. Up to four sets of current transformers can be connected to these meters (consult NMI application engineer).


K4240 120 / 208 / 240 kWh

K4480 277 / 480 / 480 kWh

KW4240 120 / 208 / 240 kWh / kW

KW4480 277 / 480 / 480 kWh / kW