Eastron SDM72D-M-2T is a digital three-phase four-wire energy meter with a backlit LCD screen, designed for DIN rail mounting (72 mm wide). It supports direct current measurement up to 100 A, eliminating the need for external current transformers. The meter provides a wide range of measurements — voltage, current, active/reactive power, power factor, frequency, and bi-directional energy measurement (import/export).
Thanks to its RS485 communication interface with Modbus RTU, it is ideal for integration into remote monitoring or building automation systems. The device supports dual-tariff metering, and includes a resettable partial energy counter and pulse output (up to 1000 imp/kWh) for data logging or BMS integration.
The display offers auto-scrolling or manual browsing of parameters, and the backlight duration is configurable. Configuration is password protected. Its durable construction makes it suitable for demanding environments (IP51, housing made of flame-retardant UL94V-0 plastic).
Technical Specifications:
- Connection: 3x230/400 V AC (3P4W)
- Current: up to 100 A AC (direct connection)
- Display: Backlit LCD
- Accuracy: Active energy: Class 1 / B, Reactive energy: Class 2
- Measurements: V, A, Hz, kW, kVar, PF, kWh (import/export)
- Communication: RS485 (Modbus RTU)
- Pulse Output: Up to 1000 imp/kWh, 35–200 ms pulse width
- Functions: Dual-tariff support, resettable partial energy
- Mounting: DIN rail 35 mm (DIN 43880), dimensions 72×100×66 mm
- Power Supply: Self-powered from measured voltage
- Protection: IP51, CAT III, up to 2000 m altitude
- Operating Temperature: -25 °C to +55 °C (optionally up to -40 °C to +70 °C)
Applications:
- Residential and rental buildings
- Industrial panels and distribution boards
- EV charging stations (billing or monitoring)
- Solar PV systems (production/consumption tracking)
- Sub-metering and legal billing use (MID compliant)
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