Eastron SDM630-MODBUS-MID V3, Modbus electricity meter, three-phase, 100A

Eastron SDM630-MODBUS-MID V2

Smart electricity meter for 1-phase and 3-phase measurement . The measured parameters include voltage (V), frequency (Hz), current (A), power (kW/kVA/kVAr), import, export and total energy (kWh/kVArh). The device can also measure maximum current and power consumption.

This device measures and displays the characteristics of single-phase two-wire (1p2w), three-phase three-wire (3p3w) and three-phase four-wire (3p4w) current in the network.

It supports Modbus RTU communication protocol over RS-485 , which allows remote monitoring and integration into energy management systems. The meter is designed for easy DIN rail mounting and offers high measurement accuracy.

The voltage is measured directly in the range of 100 to 289 V (not applicable for 3p3w) or 173 to 500 V (only for 3p). There is no need to connect external current transformers (CTs).

Key features:

• 
  
• Support for single-phase and three-phase installations (1p2w, 3p3w, 3p4w)
  
• Bidirectional measurement of electricity consumption (export/import)
  
• Communication via RS-485 (Modbus RTU)
  
• Compact design with DIN rail mounting
  
• Backlit LCD display for easy reading of values
  
• High measurement accuracy according to IEC 62053-21 and EN50470-1/3 standards
  

Accuracy:

• 
  
• Voltage: 0.5% of maximum range
  
• Current: 0.5% of rated range
  
• Frequency: 0.2% of average frequency
  
• Active power (W), reactive power (VAr), apparent power (VA): ±1%
  
• Active energy (Wh): Class 1 IEC 62053-21, Class B EN50470-1/3
  
• Reactive energy (VArh): 1% of maximum range
  

BASIC SPECIFICATIONS

Rated voltage: 3× 230/400 V AC

Operating voltage range: 80–120% of rated voltage (U _n )

Max. current (I _max ): 100 A

Interface: RS-485 (Modbus RTU)

Mounting: DIN rail 43880 (72 × 100 mm)

Dimensions: 100 × 72 × 66 mm

Protection: IP51

Detailed parameters and specifications can be found in the attached manual (en).