400V PV AC Combiner Box

PV AC combiner box is designed for photovoltaic systems that utilize string inverters. This combiner box is strategically placed between the AC output of the inverter and the grid connection or load. Equipped with both input and output circuit breakers, the PV AC combiner box has a primary purpose of consolidating the output currents from multiple inverters while also shielding them from potential risks originating from the AC grid connection or load. Our PV AC combiner box serves as a crucial point to disconnect the inverter’s output, significantly enhancing the safety of the entire photovoltaic distribution system and ensuring the well-being of installation and maintenance personnel.

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PC/ABS Plastic Enclosures
Technical Data
Model PVJ-4/400V PVJ-6/600V
Number of Input Circuits 4 6
Number of Output Circuits 1
Applicable Circuits Three-Phase Five-Wire or Three-Phase Four-Wire
Rated Operating Voltage 400V (690VAC customizable)
Single Circuit Input Current 0-80A
Dimensions (Width*Height*Depth, mm) 733*733*260 933*733*260
Mounting Dimensions (mm) 590*672 790*672
Mounting Method 50 50
Protection Features
Incoming Line Breaking Capacity MCCB
70KA (400V)
40KA (480V)
20KA (690V)
Outgoing Line Breaking Capacity 70KA (400V)
50KA (480V)
20KA (690V)
Diversion Lightning Discharge Current 40KA
Short Circuit Protection Equipped
Monitoring and Communication Non-equipped
You may choose our smart combiner series if necessary.
Protection Rating IP65
Schematic Diagram
Schematic Diagram
Environment Conditions
Temperature and Humidity Please provide specific details if the device will be used in areas with gases.
Temperature Range: -25°C to +50°C
Storage Temperature Range: -40°C to +70°C
Humidity: 0% to 95%
No condensation, no corrosive elements
Altitude ≤2,000m
We offer customized components for operating at the altitude of 3,000m.
Safety
Busbar Overlapping large-section nickel-coated copper bars
Protection PC insulated enclosure
Electrical Clearance / Creepage Distance ≥14mm/ ≥25mm
Insulation Resistance >20MΩ
AC Withstand Voltage AC3000V, 1MIN
Enclosure Material SMC
Protection Rating IP67
Terminal Block PA66, IP68
Safety
  • IPKIS uses well-known brands of components from both domestic and international sources, all of which have relevant certifications from reputable organizations.
  • Internal live parts are shielded by flame-retardant, anti-static, and high-temperature-resistant PC transparent covers.
  • Our PV AC combiner box achieves an impressive IP67 protection rating.
  • The arrangement of fuses and circuit breakers is methodical, with clear markings corresponding to precisely labeled input and output connectors located at the bottom of the box, thereby minimizing the potential for wiring errors.
  • We offer waterproof connectors with IP68 protection rating.
  • The internal connecting wires strictly adhere to IEC specifications, utilizing specialized photovoltaic cables.
Convenience
  • We prioritize convenience in our design. Input fuses and output circuit breakers are arranged vertically for ease of on-site maintenance and operation.
  • The layout of circuit breakers for input and output is flat, simplifying on-site wiring.
  • Additionally, ample space is allocated beneath the fuses/breakers, facilitating effortless on-site wiring.
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FAQS
We specialize in providing accessories for photovoltaic systems, including PV combiner boxes, fiberglass plastic enclosures, DC fuses, solar connectors, and more.

Our photovoltaic accessories are mainly utilized in the solar energy sector, catering to solar power project contractors, manufacturers of photovoltaic distribution equipment, as well as traders in the field.

We have more than 20 years of experience in manufacturing photovoltaic distribution products.
Standard specifications are available for plastic enclosures, photovoltaic fuses, and solar connectors. On the other hand, AC/DC combiner boxes are customized based on distribution designs.
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