The Schneider PM2100 Power Meter delivers comprehensive electrical parameter monitoring, Class 0.5S/1 revenue-grade accuracy, and robust Modbus RTU communications engineered specifically for commercial facility sub-metering, industrial motor control centers (MCC), low-voltage switchboards, and electrical distribution networks.

Advanced Power and Energy Management with the Schneider PM2100 Power Meter

Part of the established PowerLogic family, the Schneider PM2100 Power Meter replaces traditional analog panel gauges with a unified, high-precision digital power station. Capable of measuring true RMS electrical values across single-phase and three-phase circuits, the unit tracks instantaneous line voltages, phase currents, active power (kW), reactive power (kvar), apparent power (kVA), system frequency, and individual phase power factors under balanced or unbalanced load conditions.

The instrument provides integrated power quality analysis, capturing total harmonic distortion (THD) on voltage and current channels up to the 15th harmonic. This harmonic visibility enables plant engineers to diagnose harmonic resonance, identify non-linear drive disturbances, and protect sensitive downstream automation equipment from overheating. Its custom graphical LCD screen incorporates an analog load bar that provides operators with immediate visual indication of system loading percentage across primary switchroom panels.

Designed for straightforward supervisory system integration, the meter features an optically isolated RS-485 two-wire serial communication interface communicating via open Modbus RTU protocol. System integrators can seamlessly stream real-time energy registers directly to supervisory SCADA platforms, building management systems (BMS), and EcoStruxure Power monitoring architectures to streamline tenant sub-billing and ISO 50001 energy audits.

Key Features and Engineering Advantages

• Comprehensive True RMS Acquisition: Provides instantaneous calculation of over 30 fundamental electrical variables across distorted wave profiles.
• Harmonic Pollution Diagnostics: Tracks Total Harmonic Distortion (THD) on both current and voltage channels to identify plant-wide electrical pollution.
• Class 0.5S / Class 1.0 Accuracy: Conforms to IEC 62053-22 and IEC 62053-21 standards for reliable internal cost allocation and energy auditing.
• Isolated RS-485 Modbus Telemetry: Supports multi-drop daisy-chain serial networking for remote data collection and automated energy management.
• Standard 96 × 96 mm Form Factor: Fits standard switchgear cutouts with integrated retention clips for rapid, tool-less mechanical installation.

Technical Specifications

Industrial Applications and Process Integration

The Schneider PM2100 Power Meter is widely specified across facility energy architectures and industrial plant switchgear, including:

• Main low-voltage switchboards (LVSG), motor control centers (MCC), and emergency generator distribution panels.
• Commercial office complexes, retail shopping malls, and mixed-use campuses requiring tenant sub-metering.
• Industrial manufacturing facilities tracking line energy consumption for ISO 50001 energy auditing.
• Data center power distribution units (PDU) and critical server room branch circuit monitoring.

Frequently Asked Questions

What are the main functional differences among models in the PM2100 series?
The PM2100 series includes specific sub-models to suit panel budgets: the base PM2110 provides local front LCD measurements and pulse outputs without communications, the PM2120 incorporates an isolated RS-485 Modbus RTU serial port with Class 1.0 accuracy, and the PM2130 provides Class 0.5S high-accuracy energy measurement with RS-485 Modbus RTU communication.

Can the meter be used with both 1 A and 5 A current transformer (CT) secondaries?
Yes. The Schneider PM2100 Power Meter features universal current inputs that support both standard 1 A and 5 A CT secondary connections. CT primary values are user-programmable from 1 A up to 32,767 A directly via the front pushbuttons.

How does the front analog bar graph assist plant maintenance crews?
The integrated graphical bar graph on the LCD screen shows instant proportional electrical load relative to nominal circuit capacity. This allows operators to detect approaching phase overloads or uneven phase balancing at a quick glance without calculating numerical current sums.