IP40 Junction Plastic Switch Box PV Combiner Box

Still deciding? Get samples of $ !
Request Sample

Product Description

Basic Info
Certification ISO9001:2000
Form All- packaged Type
Operation Voltage Low Voltage
Size 2p~36p
Application Range Power Plants
Shell Material ABS
Shell Protection Grade IP40
Mounting Embedded,Surface
Transport Package Carton
Specification 4, 7, 10, 12, 14, 16, 18, 20way
HS Code 8537209000
Production Capacity 10000PCS/Month
Product Description
The combiner box is a wiring device in the photovoltaic power generation system that ensures the orderly connection and confluence function of photovoltaic modules. This device can ensure that the photovoltaic system is easy to cut off the circuit during maintenance and inspection, and reduce the range of power outage in case of photovoltaic system failure. The combiner box means that the user can connect a certain number of photovoltaic cells with the same specification in series to form a photovoltaic tandem, and then connect several photovoltaic tandem to the photovoltaic combiner box in parallel. After converging in the photovoltaic combiner box, through the controller, DC distribution cabinet, Solar inverter, and AC distribution cabinet, a complete photovoltaic power generation system can be formed to achieve grid connection with the mains.
Product Features
High reliability: With DC FUSE/With DC SPD/With DC circuit breaker or DC load isolation switch.
  • IP65 design, waterproof, anti dust and anti ultraviolet. Strict test for high And low temperature, used widely.
  • The simple installation, the simplified system wiring, the convenient wiring.
  • The box body is made of cold rolled steel and other metal materials.
  • Used for single crystal silicon solar modules, polycrystalline silicon solar modules, thin film solar modules. Current rating of the photovoltaic fuse, circuit breaker, load isolation switch is modified.
Technical Parameters
Type PV1/1 PV2/1 PV3/1 PV4/1(4/2) PV6/1(6/2)
Electric parameter
System maximum dc voltage 1000V DC
Maximum input current for each string 15A
Maximum input strings 1 2 3 4 6
Maximum output switch current 32A 32A 32A 63A 125A
Maximum output switch quantity 1 1 1 1/2 1/2
Lightning protection
Max. PV voltage (d.c.) (Ucpv ) 1000V DC
Max. discharge current (8/20 µs) (Imax) 40kA
Voltage protection level (Up) 4.0kV
System
Protection grade IP65
Output switch DC MCB(optional)/DC isolation switch(standard)
Waterproof Connectors PG/MC4
Monitoring module Optional
Box material PVC
Installation method Wall mounting type
Operating Temperature -25 °C ... +55 °C
Permissible relative humidity 0-95%, no condensation
Frequently Asked Questions
What is the function of a PV combiner box in a solar system?
The combiner box is a wiring device that ensures the orderly connection and confluence of photovoltaic modules. It allows users to connect multiple serial cell strings in parallel, facilitating system cut-off during maintenance and minimizing power outage scopes during faults.
What is the difference between the IP40 and IP65 protection grades mentioned?
The basic configuration shell material is rated IP40, suitable for basic setups. However, the system design features an optional IP65 grade shell that is waterproof, dustproof, and anti-ultraviolet, enabling safe outdoor applications.
What safety components are included inside the PV combiner box?
For high reliability, the box is equipped with a DC fuse, a DC SPD (Surge Protective Device), and a DC circuit breaker or a DC load isolation switch.
What kinds of solar modules are compatible with this combiner box?
It is designed for single crystal silicon solar modules, polycrystalline silicon solar modules, and thin-film solar modules. Current ratings of internal components can be modified accordingly.
What are the environmental limits for operating this system?
The system supports an operating temperature range of -25 °C up to +55 °C, and can withstand a relative humidity of 0-95% without condensation.
What materials are used for the outer box body?
Depending on the configuration and installation method (such as wall mounting), the box body is constructed from durable materials like PVC, ABS, cold-rolled steel, or other metal alloys.

Related Products