The Siemens 7KM4220-1BA01-1EA0 is a SENTRON PAC4220 power monitoring device featuring a colour graphic TFT display. It is designed for three-phase systems (up to 690 V / 400 V) and offers comprehensive measurement of power, energy, harmonics and power-quality parameters. Conforming to PMD-III performance class according to IEC 61557-12 and active energy accuracy Class 0.2 / 0.2S (IEC 62053-22), this unit is ideal for industrial panel mounting and high-precision energy monitoring.
Ideal for installation in industrial power distribution panels, sub-metering systems, energy-management platforms and automation control cabinets. The PAC4220 enables detailed monitoring of power, energy consumption, harmonics, and power-quality parameters to support energy optimisation, compliance and system diagnostics in manufacturing plants, utilities and infrastructure systems.
| Ampere meter | Yes |
| Blind power meter | Yes |
| Depth | 56 mm |
| Display resolution (horizontal) | 128 px |
| Display resolution (vertical) | 96 px |
| Effective power measurement device | Yes |
| Frequency meter | Yes |
| Height | 96 mm |
| Mounting method | DIN rail |
| Number of current measurement inputs | 3 |
| Number of digital inputs | 2 |
| Number of digital outputs | 2 |
| Number of voltage measurement inputs | 3 |
| Pulse counter | Yes |
| Supply voltage AC 50 Hz | 400 V |
| Supply voltage AC 60 Hz | 690 V |
| Supply voltage DC | 18 V |
| Supporting protocol for Modbus | Yes |
| Supporting protocol for PROFIBUS | Yes |
| Supporting protocol for PROFINET IO | Yes |
| Voltmeter | Yes |
| Width | 96 mm |
| With audit logging (audit log) | Yes |
| With firmware signature | Yes |
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