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Eastron  |  SKU: SDM120CT-MODBUS-MID

Eastron SDM120CT Series | Single Phase CT Operated Energy Meter

€41,00
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A professional DIN rail multifunction energy meter designed for accurate single-phase monitoring via 1A or 5A current transformers.

  • • MID Certified: Approved for billing with Class 1 accuracy.
  • • Compact Design: 1-module wide housing for space-saving.
  • • Bi-Directional: Tracks both import and export energy flow.

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Description

The Eastron SDM120CT Series is an advanced, multi-parameter energy monitoring solution engineered for precision and versatility. Measuring only 17.5mm wide (1 DIN module), this meter is Current Transformer (CT) operated, supporting both 1A and 5A inputs for maximum installation flexibility. It provides comprehensive data on essential electrical parameters including kWh, kVarh, Watts, Voltage, Amps, and Power Factor. Fully MID B+D Certified in the UK, the SDM120CT is a reliable choice for legal billing, sub-metering, and energy management in residential, commercial, and industrial electrical panels.

Industrial Grade Sub-Metering

Multi-Parameter Telemetry Real-time tracking of Active/Reactive energy, Apparent power, Demand, and Frequency for deep electrical network insights.
Standardized Backhaul Equipped with dual pulse outputs as standard, with options for RS485 Modbus RTU or M-Bus for seamless BMS integration.

Professional Metering Scenarios

• Solar PV Systems: Measure both imported and exported energy for accurate renewable energy accounting.
• EV Charging Stations: Reliable sub-metering for electric vehicle chargers to manage billing and load balancing.
• Tenant Billing: Class 1 accurate metering for apartments and office spaces to ensure fair cost distribution.

Available Communication Options

• SDM120CT-Pulse: Dual pulse outputs for remote energy pulse counting.
• SDM120CT-Modbus: RS485 RTU interface for automation and industrial control systems.
• SDM120CT-Mbus: EN13757-3 compliant communication for utility data networks.

What is in the Box?

• 1 x Eastron SDM120CT Series Energy Meter
• 1 x Quick Start Guide

Product Certifications

MID Certified CE IP51 RoHS

Specifications
  • Primary Communication Protocol
    Modbus RTU (RS485), M-Bus, Pulse Output
  • Activation Method
    Plug & Play
  • Environment Rating
    Indoor
  • IP Rating
    IP51
  • Operating Temperature
    -25°C to 55°C
  • Power Consumption
    < 2W / 10VA
  • Measurement Technology
    • Sensing Method: External Current Transformer (CT) operated (1A or 5A)
    • Measurement Type: Bi-directional measurement for kW and kWh (Import/Export/Net)
  • Measurement Range
    • Nominal Voltage (Un): 120V or 230V AC (Operational: 80% to 120% of Un)
    • Current Range: Base current 0.25A; Max current 5A (via CT)
    • Frequency: 50Hz or 60Hz
  • Measurement Accuracy
    • Active Energy: Class 1 (IEC62053-21) / Class B (EN50470-3)
    • Reactive Energy: Class 2 (IEC62053-23)
    • Voltage/Current Accuracy: 0.5% of range maximum
  • Measurement Resolution
    • Display: Backlit LCD with scrollable parameters
    • Pulse Constants: Configurable 1000/2000/3200 imp/kWh
    • Modbus Speed: Baud rates up to 38400 bps (RS485 Modbus-RTU)
  • Interfaces (I/O)
    Current Sensor Input, Pulse Counter
  • Monitoring Parameters
    Energy (kWh), Reactive Energy (kVarh), Active Power (W), Reactive Power (var), Voltage (V), Current (A), Power Factor, Frequency, Demand (A/W)

Document Library

SDM120CT Datasheet

SDM120CT User Manual

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