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

Advanced, multifunctional energy meter for direct measurement up to 100 A in 1-phase and 3-phase networks. The device is MID certified (EN50470, B+D), allowing its use for billing purposes. Thanks to the direct connection up to 100 A, there is no need to use external current transformers (CT).

It measures and displays the characteristics of single-phase two-wire (1p2w), three-phase three-wire (3p3w), and three-phase four-wire (3p4w) connections. Thanks to bi-directional measurement, it is an ideal choice for monitoring photovoltaic systems. It is self-powered directly from the measured inputs and does not require an external auxiliary supply.

The device is equipped with an RS-485 communication interface with the Modbus RTU protocol for remote monitoring and integration into superior systems. It also features two pulse outputs, one of which is fully configurable (for import, export, or net consumption).

Key Features:

• MID (B+D) certification - suitable for billing purposes
• Support for single-phase (1p2w) and three-phase (3p3w, 3p4w) installations
• Direct measurement up to 100 A
• Bi-directional measurement (Import/Export kWh and kVArh)
• Net kWh calculation (Export - Import)
• Network quality measurement incl. Total Harmonic Distortion (THD) for voltage and current
• Communication via RS-485 (Modbus RTU) with selectable baud rate (up to 38400 bps)
• Two pulse outputs (1x fixed, 1x configurable)
• Clear and highly visible backlit LCD display
• Easy DIN rail mounting (4 modules)

Measured Parameters:

• Voltage (phase-neutral and phase-phase) (V)
• Current (A)
• Frequency (Hz)
• Power Factor (PF)
• Active Power (kW)
• Reactive Power (kVAr)
• Apparent Power (kVA)
• Current Max Demand (MD A)
• Power Max Demand (MD kW)
• Voltage Total Harmonic Distortion (U %THD)
• Current Total Harmonic Distortion (I %THD)
• Import Active Energy (kWh)
• Export Active Energy (kWh)
• Total Active Energy (kWh)
• Import Reactive Energy (kVArh)
• Export Reactive Energy (kVArh)
• Total Reactive Energy (kVArh)

BASIC SPECIFICATIONS

Nominal Voltage (Un): 3× 230/400 V AC
Operational Voltage Range: 80–120% of nominal voltage (Un)
Basic Current (Ib): 10 A
Max. Current (Imax): 100 A
Interface: RS-485 (Modbus RTU)
Accuracy Class: Class 1 (IEC 62053-21) / Class B (EN50470-3)
Mounting: DIN rail (4 modules)
Dimensions: 100 × 72 × 66 mm
Protection: IP51 (for indoor use)
Certifications: MID (EN50470-1, EN50470-3), EMC (EN61326), LVD (EN61010)