Photovoltaic Combiner Box

The combiner box in a photovoltaic power generation system is a wiring device that ensures the orderly connection and current collection function of photovoltaic components. This device can guarantee that the photovoltaic system is easy to disconnect during maintenance and inspection. In the event of a fault in the photovoltaic system, it reduces the scope of power outage.

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Overview


AC\DC BOX photovoltaic combiner box is suitable for the maximum input voltage of the inverter DC550V/DC1000V. The box is made of PVC engineering materials, with fire retardant, temperature rise, impact resistance, UV resistance and other tests, and the protection level reaches IP65. The product is designed and configured in strict ac-cordance with the requirements of “Photovoltaic Convergence Equipment Technical.

 

Technical Specification


ItemAC\DC BOX 6\1AC\DC BOX 8\1AC\DC BOX 12\1AC\DC BOX 16\1
Electrical Parameters
System Maximum DC Voltage1000
Maximum Input Current per Channel20A
Maximum Number of Input Channels681216
Maximum Output Switch Current20A/32A125A160A200A
Inverter MPPT QuantityN
Output Channels1
Lightning Protection
Test TypeII pole protection
Nominal Discharge Current20kA
Maximum Discharge Current40kA
Voltage Protection Level3.8kV
Maximum Continuous Operating Voltage1050V
Number of Poles3P
Structural Features
Output SwitchDC circuit breaker (standard) / DC rotary disconnect switch
SMC4 Waterproof ConnectorStandard
Photovoltaic DC FuseStandard
Photovoltaic DC Surge ProtectorStandard
Monitoring ModuleOptional
Anti-reverse DiodeOptional
Box MaterialMetal
InstallationWall-mounted
Operating Temperature‒25℃~+55℃
Altitude2000m
Allowable Relative Humidity0~95%, no condensation

 

AC/DCBOX DC combiner box circuit diagram and layout diagram


photovoltaic-combiner-box-diagram

 

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