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Ensure the continuity and safety of your electrical installations with this 400V 16A three-phase transfer switch box with 3 surface-mounted sockets. It includes a Resi9 4P 63A 300 mA sensitivity residual current switch, two Resi9 4P 25A 400V Curve C modular circuit breakers, a ONCCY EATS2 4P 63A automatic transfer switch and three IP44 secure sockets, offering complete protection against overloads, short circuits and power outages.
The transfer switch automatically switches between a main source (grid) and a backup source (battery, inverter, generator or solar) in less than 50 milliseconds, ensuring continuous power supply for your sensitive equipment: servers, photovoltaic systems with storage, professional freezers or medical devices.
The 3 surface-mounted sockets allow you to safely connect multiple devices thanks to their waterproof cover, child protection and screw terminals. Compact and modular, the box is easily installed on a DIN rail, ideal for domestic, commercial and semi-industrial installations.
Reliable and durable, this box supports more than 8,000 switching cycles and operates in a range from -5°C to +40°C. Combined with suitable protections, it forms a complete and secure system for all your critical installations.
The 400V three-phase automatic transfer box is the all-in-one solution for ensuring the safety and availability of your power supply. Designed to switch instantly between the public grid and a backup source (generator, solar inverter or batteries), it protects your critical equipment from unexpected power cuts.
This pre-equipped box combines components from leading brands for maximum reliability:
The inverter ensuresalmost instantaneous continuity of service. In the event of a power failure, it switches to your backup source in less than 50 milliseconds.
By incorporating the Resi9 range, this box focuses on professional quality.
Practical and secure, these three sockets feature a protective cover, an earth pin, screw terminals and child protection. Splash-proof (IP44), they allow you to connect several devices safely and are ideal for damp or demanding environments.
💡 Wattuneed tip: Always combine the automatic inverter with suitable residual current devices and circuit breakers to ensure a safe and optimal installation, especially in hybrid photovoltaic systems or those with a generator.
Connecting your inverter box is a key step. To ensure a smooth transition between your energy sources, carefully follow the installation plan provided.
| Three-phase Source Switch Specifications | |
|---|---|
| Nominal Voltage | 400V AC (Three-phase + Neutral) |
| Maximum Current | 16A (expandable depending on internal wiring) |
| Switching Speed | < 50 ms |
| Protection rating of sockets | IP44 (protective cover) |
| Mechanical service life | > 8,000 cycles |
| Compliance | CE standards, standard DIN rail mounting |
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