The Siemens 7KM2200-2EA30-1GA1 is a SENTRON PAC2200 energy meter for 3-phase low-voltage systems up to 400 V. It uses indirect current measurement via external x/5 A current transformers — a configuration that decouples the meter from the feeder current rating, making it adaptable to any circuit size by selecting the appropriate CT. The meter is MID-certified for billing-grade energy measurement and communicates via M-Bus for integration into building automation and utility metering infrastructure.

MID-Calibrated for Legal Billing over M-Bus

This variant combines MID certification — making energy readings legally valid for revenue billing — with the M-Bus protocol, the European standard for multi-vendor remote meter reading. It is the correct choice when the energy meter must coexist with heat meters, water meters, and gas meters on a shared M-Bus network in commercial buildings, multi-tenant residential complexes, and campus-style facilities.

Indirect 5 A Measurement for Flexible Deployment

The 5 A indirect input means the meter itself does not carry the load current — external current transformers handle the primary-to-secondary conversion. This allows the same meter model to serve a 100 A lighting feeder, a 630 A chiller circuit, or a 1600 A main incomer simply by selecting appropriately rated CTs. It also provides galvanic isolation between the power circuit and the measurement system.

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