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Multi-Circuit Meter (MCM) for Modbus®


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    All Power Meters require 1 to 3 CT's to measure current. Our standard CTs are accuracy class 1.2. If calibration certificates are required, use class 0.6 or better CTs.  To choose your CTs and for more information, see the CT Product Page



The Multi-Circuit Meter (MCM) is based on the WattNode WND Module for Modbus with 4, 8, 12, or 16 three-phase meter in one NEMA rated enclosure. Models are available for 120/208-240V and 277/480V utility services with Modbus® RTU RS-485 communications.

Note: The Modbus TCP over Ethernet version has been discontinued.

Each three-phase sub-meter can measures 1, 2, or 3 phases and each phase individualy configured for CT rated currents from 5 to 6,000 amps. Power and energy registers are available for the sum of all three phases or for each individual phase.

The MCM is supplied in either a metal or plastic NEMA enclosure, with an AC to DC power supply, circuit breaker, and terminal blocks, all prewired as a UL 508A Listed industrial control panel, ready for mounting. For more details see the Specifications and Downloads Page.

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