The Siemens 7KM2200-2EA40-1GA1 is a SENTRON PAC2200 energy meter that combines MID-certified billing-grade measurement with 65 A direct connection and M-Bus communication. It is the direct-measurement, billing-certified counterpart to the 2EA40-1CA1 (M-Bus without MID), suitable for revenue-grade energy metering in building automation systems where the feeder current does not exceed 65 A.

Billing Without CTs

This variant is distinctive in the PAC2200 lineup: it offers MID-certified billing measurement in a direct-connect 65 A package. For sub-distribution boards, lighting panels, and small HVAC feeders that require legal billing, this eliminates the need to specify, install, and verify external CTs — reducing installation labor, panel space, and potential sources of measurement error. The trade-off is the 65 A upper limit versus the unlimited scalability of the transformer-rated 5 A variants.

M-Bus for Multi-Utility Billing Networks

The M-Bus interface integrates this meter into the same metering bus that carries data from heat meters, water meters, and gas meters — a unified infrastructure for multi-utility billing in commercial properties and multi-tenant buildings. MID certification ensures the electrical energy readings have the same legal standing as the other utilities on the bus.

Decision Parameters