•Wide voltage adaptability
•High protection level
•Multiple protection functions
•Intelligent monitoring and communication
•Lightweight and easy to install
The AC combiner box is an important component of the photovoltaic string power generation system, installed between the AC output side of the inverter and the grid connection point or load. It is mainly used to converge the output currents of multiple inverters, while protecting the inverters from harm on the AC grid side or load side.
Widely used in rooftop photovoltaic projects in industrial parks, commercial buildings, and residential areas to reduce cable usage and line losses.
Used to concentrate the output current of multiple inverters for subsequent boosting and grid connection.
Ensure the safe operation of the energy storage system in the AC output convergence of the energy storage inverter.
In small-scale wind power projects, it is used to converge the AC output of multiple generators.
Suitable for inverters with different voltage levels from AC400V to AC690V.
The protection level is IP65, which meets the requirements for indoor and outdoor installation, and has characteristics such as waterproof, dustproof, UV resistant, and salt spray corrosion resistant.
Equipped with second or fourth level lightning protection modules, providing full mode protection. Both input and output use circuit breakers, which can quickly cut off fault currents and protect the inverter.
Optional intelligent monitoring instruments can be used to monitor signals such as system voltage, current, power, and electrical energy. Equipped with RS485 communication interface, supporting ModBus RTU protocol for remote monitoring.
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Product Model |
PowerSA-SUNac4 |
PowerSA-SUNac6 |
PowerSA-SUNac8 |
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Input strings |
4 |
6 |
8 |
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Highest Voltage |
AC690V |
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Single Input Current |
0~100A |
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Highest Output Current |
250A |
400A |
630A |
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Rated Working Voltage Un |
480VAC |
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Voltage Protection Level Up |
≤3.2kV |
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Nominal Flow Capacity In (8/20μs) |
20kA(selectable) |
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Max Flow Capacity Imax (8/20μs) |
40kA(selectable) |
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Response Time |
≤25ns |
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Temperature & Humidity |
Working Tem：-40~+85℃ ; Humidity 95% (No frost, no corrosive gas) |
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Altitude |
≤4000m |
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I/O Switch |
Circuit Breaker | ||
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Surge Protection |
Standard |
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Cabinet Material |
Hot-dip galvanized steel / stainless steel / cold rolled steel / engineering plastic |
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Cabinet IP Grade |
IP65 |
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Cable Connector IP Grade |
IP66 |
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Volume |
750mm×600mm×220mm |
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