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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 rated enclosure, with screw terminal blocks and a DC power supply for the sub-meters. MCMs can be ordered with circuit breaker, fuse, or no protection, pre-wired as a UL 508A Listed industrial control panel, tested, and ready to install. For more details see the Specifications and Downloads Page.

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