Fronius Smart Meter CT V 250/333mV 41,0010,0105

Optimising self-consumption and implementing feed-in limitation in PV systems requires precise energy measurement. The Fronius Smart Meter CT V 250/333mV is a bidirectional energy meter that provides accurate data to Fronius inverters, enabling dynamic control of energy flows and ensuring compliance with grid feed-in limits.

Who is it for

This meter is intended for installers and system integrators setting up Fronius PV systems with Datamanager 2.0 or higher. It is suitable for three-phase installations where direct measurement up to 65 A per phase is required, and where DIN rail mounting is preferred.

Main features

• Bidirectional energy measurement for monitoring both consumption and feed-in
• Direct measurement up to 3 x 65 A, no external current transformers needed
• Modbus RTU (RS485) interface for reliable communication with Fronius inverters
• Three-phase operation with nominal voltage 3 x 230/400 V, 50/60 Hz
• Accuracy class 1 for active energy, ensuring precise data for control decisions
• Compact DIN rail mounting (4 modules) for easy integration into distribution boards
• LCD display for local reading of energy values
• Low self-consumption (< 1 W) to minimise impact on system efficiency

Specifications

• Meter type: Bidirectional energy meter
• Measurement type: Direct measurement
• Max current: 3 x 65 A
• Nominal voltage: 3 x 230/400 V
• Phases: Three-phase
• Frequency: 50/60 Hz
• Communication: Modbus RTU (RS485)
• Accuracy class: Class 1 (active energy)
• Mounting: DIN rail (4 modules)
• Operating temperature: -25°C to +60°C
• Protection class front: IP51
• Protection class terminals: IP20
• Self-consumption: < 1 W
• Display: LCD
• Compatibility: Fronius inverters with Datamanager 2.0 or higher

Tips

For optimal performance, install the meter close to the inverter and use shielded twisted-pair cable for the Modbus connection. Ensure the firmware of the Datamanager is up to date to support all features.