Eastron SDM120-Modbus-MID – Single Phase 45A Energy Meter with RS485 Modbus

Eastron SDM120-Modbus-MID – Single Phase 45A Energy Meter with RS485 Modbus

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€40,90

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The Eastron SDM120-Modbus-MID is a compact single-phase multifunction energy meter designed for accurate monitoring of electrical consumption in residential, commercial and industrial applications.

Featuring a direct current connection up to 45A, the SDM120 does not require an external Current Transformer (CT), making installation simple and cost-effective. Its compact 1-module DIN rail design makes it particularly suitable for electrical panels where space is limited.

The integrated RS485 Modbus RTU communication interface allows the meter to be easily connected to energy monitoring systems, building management systems (BMS), industrial controllers, IoT gateways and other Modbus-compatible devices.


📊 Electrical Parameters

The SDM120-Modbus-MID provides real-time measurement and monitoring of key electrical parameters, including:

  • ⚡ Voltage (V)
  • 🔌 Current (A)
  • 💡 Active Power (W / kW)
  • 📈 Active Energy (kWh)
  • ⚙️ Power Factor (PF)
  • 🔄 Frequency (Hz)

🔗 RS485 Modbus Communication

With its built-in RS485 interface and Modbus RTU protocol, measurement data can be remotely collected and integrated into monitoring and automation platforms.

This makes the SDM120 an excellent choice for applications requiring centralized energy monitoring, consumption analysis or integration with smart building and IoT systems.


🛠️ Direct 45A Connection – No External CT Required

Unlike the SDM120-CT version, this model is designed for direct connection of loads up to 45A.

No external current transformer is required, simplifying wiring and reducing the number of components needed inside the electrical panel.


📋 Key Features

  • ✅ Single-phase energy meter
  • ✅ Direct connection up to 45A
  • ✅ No external Current Transformer (CT) required
  • ✅ Compact 1-module DIN rail installation
  • ✅ RS485 communication
  • ✅ Modbus RTU protocol
  • ✅ Pulse output
  • ✅ Multifunction LCD display
  • ✅ Measurement of V, A, W/kW, kWh, PF and Hz
  • ✅ MID Approved
  • ✅ Suitable for residential, commercial and industrial energy monitoring

🏢 Typical Applications

           Ideal for:

  • 🏠 Residential energy monitoring
  • 🏢 Commercial buildings
  • 🏭 Industrial installations
  • ☀️ Solar PV monitoring
  • ⚡ Electrical distribution panels
  • 🌐 IoT energy monitoring systems
  • 🖥️ Building Management Systems (BMS)
  • 📊 Energy management and consumption monitoring

Product Downloads

📥 Datasheet
📥 User Manual


🎥 Product Video

- Model: SDM120-Modbus-MID - Phase: Single Phase (1P2W) - Connection Type: Direct Connection - Maximum Current: 45 A - Rated Voltage: 230 V AC - Frequency: 50/60 Hz - Communication: RS485 - Protocol: Modbus RTU - Modbus Address: 1–247 - Baud Rate: 2400–38400 bps - Pulse Outputs: 2 - Display: Backlit LCD - Energy Measurement: Bidirectional - Mounting: 35 mm DIN Rail - Width: 18 mm (1 DIN Module) - Dimensions: 118 × 18 × 64 mm - Certification: MID - External Current Transformer (CT): Not Required

Shipping Policy We provide worldwide shipping using only tracked shipping services. Currently all our international shipments are performed by TNT Express and FedEx. Local shipments to Greece are performed either directly from us or using local shipping couriers (i.e. ELTA Courier). We ship products within 1-3 days after the order is placed. You will be notified by email when your order is dispatched and you will receive the relevant shipment tracking number which you can use to track your shipment. Shipment Tracking You can use the following links to track your order using the provided tracking number in the case of international orders. Orders shipped with TNT Express: TNT Tracking Orders shipped with FedEx: FedEX Tracking General Return Policy We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. To start a return, you can contact us at info@invibit.com. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted. For any further information, help and support regarding the shipping and/or return process you can contact us at: Email: info@invibit.com Telephone: +30 210 421 2380