The Siemens 7KM2200-2EA40-1EA1 is a SENTRON PAC2200 energy meter for 3-phase low-voltage systems up to 400 V. It provides 65 A direct measurement with Modbus TCP communication over Ethernet — a straightforward choice for non-billing energy monitoring where the feeder current is within the 65 A direct rating and the automation network uses Ethernet infrastructure.

65 A Direct + Modbus TCP: Simple and Connected

Direct measurement eliminates external CTs; Modbus TCP eliminates serial converters. The meter connects in series with the load and plugs into an Ethernet switch — two wiring steps and the energy data is on the network at 10/100 Mbit/s. This combination is particularly effective in new installations where both the power distribution and the Ethernet infrastructure are being deployed together.

Use Case: Machine-Level and Feeder Monitoring

This meter is well-suited for monitoring individual production machines, HVAC subsystems, or sub-distribution feeders up to 65 A where the goal is operational energy awareness rather than legal billing. The Modbus TCP interface integrates directly with Siemens powermanager, third-party energy management software, or custom SCADA applications via the open Modbus protocol.

Decision Parameters