ATMOCE – MI-425 Microinverter

Le micro-onduleur ATMOCE MI-425 est un équipement photovoltaïque professionnel conçu pour optimiser la production énergétique au niveau du module. Avec une puissance nominale de 425 W et une efficacité maximale de 97,4 %, ce micro-onduleur représente une solution technique adaptée aux installations résidentielles haut de gamme, commerciales et tertiaires.

Its isolated technology guarantees stable conversion of solar energy into alternating current , while ensuring optimal protection against voltage and frequency fluctuations in the grid. The MPPT voltage range of 30 to 55 V allows for broad compatibility with Solar panels modern, including 54 to 144 half-cell technologies.

The PPO housing offers IP67 protection , allowing outdoor installation in a variety of climatic conditions, with an operating temperature range of -40 to 65 °C. Its compact dimensions (248 × 164 × 38.5 mm) and light weight (1.3 kg) facilitate installation and reduce mechanical stress on mounting structures.

The device incorporates a power line communication (PLC) system , eliminating the need for additional cabling for monitoring. The MC4-compatible DC connector and the proprietary MT-02502-A AC connector ensure quick and reliable installation. Module-level management enables precise production monitoring and early anomaly detection.

Certified according to EN IEC 62109-1/-2 standards for safety and EN IEC 61000-6 for electromagnetic compatibility, the MI-425 meets the requirements of European regulations (VDE 0124, VDE 4105, UTE 0126, EN 50549, EN 50530).

KEY POINTS FOR PROFESSIONALS

• Rated power of 425 VA with a rated output current of 1.85 A for optimized production.

• Maximum efficiency of 97.4% and European efficiency of 97.0% guaranteeing stable energy performance.

• MPPT efficiency of 99.9% allowing maximum extraction of available energy.

• MPPT voltage range of 30 to 55 V compatible with PV modules of 54 to 144 half-cells.

• Maximum input voltage of 60V and maximum continuous current of 16A for installation versatility.

• IP67 protection with PPO housing resistant to harsh outdoor environments.

• Double insulation protection class (Class II) exempting from Grounding .

• Adjustable power factor (0.8 inductive to 0.8 capacitive) for adaptation to network requirements.

• Total harmonic distortion less than 3% for a quality network injection.

• Integrated PLC communication without additional cabling for centralized monitoring.

• Extended operating temperature range (-40 to 65 °C) for demanding climates.

• Configuration up to 8 units per 20 A branch circuit or 10 units per 25 A circuit.

• 25-year manufacturer's warranty covering material and functional failures.

• Certification compliant with European safety and EMC standards.

RECOMMENDED APPLICATIONS

• Premium residential installations seeking energy optimization at the module level.

• Commercial and service sector projects requiring granular production supervision.

• Small and medium power photovoltaic power plants with partial shading constraints.

• PV systems being renovated allowing for the gradual addition of production capacity.

• Installations subject to PPE2 regulations relating to carbon footprint.

• Sites requiring simplified maintenance thanks to unit replacement.

• Multi-orientation configurations where each module operates at its optimal power point.

• Environments with increased risk (corrosion, humidity, significant temperature variations).

• Projects benefiting from self-consumption bonuses and valuing production module by module.

ADDED VALUE POWR CONNECT
POwR Connect We offer the ATMOCE MI-425 microinverter with fast delivery throughout France and technical support for sizing photovoltaic systems . Our expertise with installers and developers guarantees technical integration that complies with current standards.