The Siemens 7KM2200-2EA30-1JA1 is a SENTRON PAC2200 energy meter for 3-phase low-voltage systems up to 400 V. It combines MID-certified billing-grade measurement with Modbus TCP over Ethernet — the modern choice for legal-for-trade energy metering in networked industrial and commercial environments. The 5 A indirect input provides galvanic isolation and CT-based adaptability to any feeder capacity.

MID + Modbus TCP: Billing Without Serial Constraints

This variant pairs MID certification with Modbus TCP, the Ethernet-based evolution of the Modbus protocol. It connects directly to an Ethernet switch port at 10/100 Mbit/s — no RS-485 wiring, no baud rate configuration, no serial converters. This is the correct choice for new installations where billing-grade energy data must integrate into an Ethernet-based automation or energy management infrastructure.

Within the PAC2200 MID Family

The PAC2200 MID range offers three communication options: the 1GA1 (M-Bus) for building automation metering buses, the 1HA1 (Modbus RTU) for traditional industrial serial networks, and this 1JA1 (Modbus TCP) for Ethernet-based systems. All three share the same core MID-certified measurement engine — the choice is purely about how the billing data reaches the management system.

Decision Parameters