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Siemens SENTRON PAC3120 Power Monitoring Device - 690/400V, Modbus RTU

Siemens SENTRON PAC3120 LCD Power Monitoring Device with Modbus RTU.

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ManufacturerSiemens

Part number7KM3120-0BA01-1DA0

Manufacturer Siemens

Part Number 7KM3120-0BA01-1DA0

Display LCD Graphical

Protocol Modbus RTU

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LCD Graphical Display Modbus RTU Communication Precise Electrical Variable Measurement Wide Voltage Range (690/400 V) 100-250 V AC/DC Auxiliary Power Panel Mount (96x96mm)

Product description

The Siemens 7KM3120-0BA01-1DA0 is a SENTRON PAC3120 power monitoring device designed for precise measurement of electrical variables in power distribution systems. It features an LCD graphical display and supports Modbus RTU protocol for seamless integration with automation and energy management systems. The device is rated for a Ue of 690/400 V at 45-65 Hz and an Ie of X/1 A or X/5 A AC.

This power monitoring device is ideal for assessing system states and power quality in industrial plants, process industries, manufacturing facilities, and critical infrastructures like hospitals and data centers. Its comprehensive data acquisition capabilities make it a valuable tool for energy management and system diagnostics.

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Technical specifications

Manufacturer	Siemens
Part Number	7KM3120-0BA01-1DA0
Display	LCD Graphical
Protocol	Modbus RTU
Ue Rated	690/400 V
Frequency	45-65 Hz
Ie Rated	X/1 A or X/5 A AC
Auxiliary Power	100-250 V AC/DC
Connection	Screw Terminal
Dimensions	96 x 96 mm

Common applications

Industrial Automation

Power Distribution Monitoring

Energy Management Systems

Manufacturing Facilities

Critical Infrastructures

Process Industries

Compatible systems

Integrates with higher-level automation and energy management systems via Modbus RTU.

Also known as

Siemens PAC3120 SENTRON PAC3120 Power Meter 7KM3120

Replaces / compatible with

This power monitoring device is a current model and does not directly replace a specific older part. It is designed for new installations or as an upgrade to existing Siemens SENTRON PAC systems.

Technical note

Expert tip

Ensure proper wiring according to the manual for accurate measurements and to avoid damage, especially when configuring the current transformer inputs (X/1A or X/5A).

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Frequently asked questions

What are the key measurement capabilities of the Siemens 7KM3120-0BA01-1DA0?

The Siemens 7KM3120-0BA01-1DA0 measures a wide range of electrical variables including voltage, current, active and reactive power, frequency, and power factor. It also supports THD harmonics measurement.