Marstek smart backup box single phase

The Marstek Smart Back-up Box Single Phase (DB63S) is designed to keep your energy system safe and reliable. In the event of a mains outage, the box automatically switches to the backup output, ensuring essential appliances such as lighting, routers, refrigerators, and medical equipment remain operational. Thanks to its single-phase connection, it's the ideal backup solution for homes and small businesses. The Smart Back-up Box integrates seamlessly with Marstek home batteries, preventing outages or interruptions in your energy system.

Key benefits:

• Automatic switchover in case of power failure

• Suitable for single-phase systems

• Reliable backup for critical consumers

• Easy integration with Marstek batteries and inverters

• Compact design and quick installation

Operation in brief:

• During normal (on-grid) operation, the full grid load runs through the pass-through, and the box continuously monitors the grid status.

• In the event of a mains failure, the grid side is disconnected within approximately 1 second and the backup output supplies the selected groups via the inverter and battery.

• After the mains voltage is restored, the box switches back to on-grid operation in a controlled manner.

Technical specifications:

• Model: DB63S

• AC output (on-grid): Single phase, 220/230 V, 50/60 Hz, maximum current 40 A

• AC output (backup): Single phase, 220/230 V, 50/60 Hz, maximum current 40 A

• Switching time: ~1 s

• AC input: 220/230 V, 50/60 Hz, compatible with Marstek Venus Series

• Working modes: Off-grid and on-grid

• Operating temperature: −5°C to +70°C

• Relative humidity: <95% RH

• Protection degree: IP20

• Cooling method: Natural convection

• Dimensions (L×W×H): 480 × 360 × 118 mm

• Weight: 10 kg

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