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China PVB Series Photovoltaic Combiner Box with SPD - Suppliers & Factory for Enhanced Safety and Efficiency
PVB series PV Array Combiner Box is used for the connected of PV inverter and PV array to lessen the cable for the connecting,easy to maintain and improve the reliability.We always fix the DC convergence device between the PV inverter and PV array.With many years of experience in the PV power system,it is specially designed for the high efficiency and reliability ;it is the supporting components of our PV inverter for the PV power generating.You could connect a certain number of PV components in series to be the PV array according to the voltage range of DC input;then,connect the PV array to PV lighting protection combiner box for the converge, through the output of lightning protection device and breaker,it is easy for switching-in of PV inverter and improve the system safety and lessen the installing time.
As a key component of a solar power generation system, the PVB series photovoltaic combiner box significantly simplifies the connection architecture between the photovoltaic array and the inverter by combining multiple photovoltaic module inputs into a single output. The product adopts an industrial-grade wall-mounted installation solution, which saves space and facilitates daily maintenance by operation and maintenance personnel. Parameters such as the number of input channels and rated current can be customized according to project requirements to adapt to various photovoltaic power station scenarios. The built-in intelligent protection system includes: diode isolation to prevent reverse current, fuse overcurrent protection, MOV overvoltage absorption device and Type II surge protector, which fully guarantees the stable operation of the system in harsh environments. Its protection level reaches IP65 and the operating temperature range is -25℃ to +60℃, meeting the technical specifications of the mainstream global photovoltaic market.
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IP65 protection class, suitable for outdoor installation use.
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High voltage lightning protection (SPD) special for PV.
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Each PV input with DC fuse protection and anti-reverse protection (optional).
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PG Cable Gland/MC4 terminal connector (optional), each terminal with waterproof function, convenient and safe system wiring.
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Output standard copper core cable 70mm² (max output 95mm²).
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Wide DC input voltage range, max open-circuit voltage up to 1000V.
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Wall mounting type easy to installation, easy and convenient maintenance.
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Can be custom made to user's specification.
| Type Designation | PVB-2 | PVB-4 | PVB-5 | PVB-6 |
| Max. PV Array Input String | 2 | 4 | 5 | 6 |
| Max. PV Array Voltage | 400Vdc or 1000Vdc | |||
| Rated Current for Each String (Replaceable) | 10A/15A | 10A/15A | 10A/15A | 10A/15A |
| Output Terminal Type | PG21 | |||
| Rated Output Current | 20A/30A | 40A/60A | 50A/75A | 60A/90A |
| Input cable waterproof connector | PG7 (4mm PV cable) | |||
| Output cable waterproof connector | PG21 | |||
| Output DC Circuit Breaker | Yes | |||
| PV special lightning protection module | Yes | |||
| Anti-reverse module protection | Optional | |||
| Protection Degree | IP45 | |||
| Environment Temperature | －25～+60℃ | |||
| Environment Humidity | ＜90% No condensation | |||
| Altitude | ≤3000m | |||
| Installation: indoors | Indoor/outdoor | |||
ABS engineering plastic type
Outdoor coating process and stainless steel type
What is the main purpose of the PVB series PV Array Combiner Box?
The PVB series combiner box is designed to connect the PV array and the PV inverter. It converges multiple inputs from PV strings into a single output to reduce cable connections, simplify maintenance, and enhance system safety and reliability.
What built-in protection features does the combiner box offer?
It features an intelligent protection system, including diode isolation to prevent reverse currents, DC fuse overcurrent protection, an MOV overvoltage absorption device, and a Type II surge protector (SPD) for high-voltage lightning protection.
Can this combiner box be installed outdoors?
Yes. The PVB series combiner box is designed with an IP65 protection rating, making it suitable for outdoor installation. It operates reliably within a wide temperature range of -25°C to +60°C.
What is the maximum DC input voltage supported?
The combiner box supports a wide DC input voltage range, accommodating a maximum open-circuit voltage of up to 1000Vdc (with options for 400Vdc depending on system requirements).
Are custom configurations available for different projects?
Yes, parameters such as the number of input channels (available in models like PVB-2, PVB-4, PVB-5, and PVB-6), rated current, and options like anti-reverse module protection can be customized according to specific user requirements.