PV Power Control Device for OSD via SunSpec Protocol

The PV Power Control Device for OSD via SunSpec Protocol is a bi-directional energy meter designed for dynamic power control of photovoltaic installations. It enables grid operators (OSD) to manage feed-in power using the SunSpec protocol, ensuring compliance with grid regulations. This 3-phase meter measures energy import/export, power, voltage, current, frequency, and power factor with Class 1 accuracy. It communicates via Modbus RTU (RS485) and is compatible with Fronius Symo, Primo, and Gen24 Plus inverters. The device mounts on a DIN rail (4 modules) and features an LCD display. Its self-extinguishing thermoplastic housing and IP51 protection make it suitable for indoor use.

Advantages

Enables dynamic power control for grid compliance. Direct measurement with high accuracy. Easy DIN rail installation. Supports SunSpec and Modbus protocols. Low self-consumption (<1 W). Wide operating temperature range (-25°C to +60°C).

Suitable for

• Photovoltaic installations requiring feed-in limitation
• Integration with Fronius inverters (Symo, Primo, Gen24 Plus)
• Grid operator (OSD) power control applications
• Energy monitoring and consumption management

Key specifications

• Type: Bi-directional Energy Meter
• Phases: 3-Phase
• Max Direct Current: 65 A
• Nominal Voltage: 230/400 V AC
• Frequency: 50/60 Hz
• Communication Interface: Modbus RTU (RS485)
• Supported Protocols: SunSpec, Modbus
• Accuracy Class: Class 1 (Active Energy)
• Mounting Type: DIN Rail (4 Modules)
• Display: LCD
• Operating Temperature Range: -25°C to +60°C
• Protection Class: IP51
• Self-Consumption: < 1 W
• Overvoltage Category: CAT III
• Terminal Cross-Section (Current): 1.5 - 16 mm²
• Terminal Cross-Section (Voltage/Communication): 0.05 - 2.5 mm²
• Housing Material: Self-extinguishing thermoplastic

Recommendations

For optimal performance, ensure compatibility with your inverter model. Professional installation by a qualified electrician is recommended. Use appropriate cable cross-sections as specified.