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Split Junction Box for Solar Panel

Split Junction Box

Condition: New

Certification: TUV

Application: Home, Industrial, Commercial

Specification: Normal

Transport Package: Carton

Trademark: FRCABLE

Customization Available

Product Description

Basic Information for Spilt Junction Box

Split Junction Box with Description

Application Spilt Junction Box:

Junction boxes are installed by photovoltaic (PV) manufacturers directly onto the back of every PV panel and serve as the interface between the conductor ribbons on the panel and the DC input and output cables.
  They contain bypass diodes to protect the PV panel from reverse current during hours of darkness, if the panels are in shade or if covered by debris such as leaves, for instance.

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Solar Split Junction Box
High Quality Split Junction Box
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Split Junction Box for Solar Panel


  • IP rating: The split junction box has an IP (Ingress Protection) rating, which indicates its level of protection against the ingress of solid objects (such as dust) and water. This is important for outdoor PV systems, as it helps to ensure that the split junction box is able to withstand the elements and continue to operate effectively.

  • Multiple connector options: The Split junction box offers a variety of connector options, allowing you to customize the connection between your PV panels and the inverter to suit your specific system needs.

  • Cable management: The split junction box includes cable management features to help keep electrical wires organized and secure. This helps to prevent damage to the wires and ensures that your PV system is operating safely.

  • Reverse polarity protection: The split junction box includes reverse polarity protection, which prevents damage to the system if the electrical wires are connected in the wrong order. This is important for ensuring the safety and reliability of your PV system.


Q: What is a split junction box and what does it do?

A: A split junction box is an electrical component used in photovoltaic (PV) systems to connect and manage the flow of electricity from PV panels to the inverter. It contains connectors for the PV panel's electrical wires and for the wires that run to the inverter, and it also has fuses or circuit breakers to protect the PV system from electrical overloads and short circuits.


Q: Where is the split junction box installed in a PV system?

A: The split junction box is typically mounted on the back of a PV panel. It is located between the PV panel and the inverter, and it serves as the central hub for managing and distributing the electricity produced by the PV panel.


Q: How does the split junction box protect the PV system?

A: The split junction box includes fuses or circuit breakers that are designed to protect the PV system from electrical overloads and short circuits. If the system experiences an electrical overload or short circuit, the fuses or circuit breakers will trip, disrupting the flow of electricity and protecting the system from damage.

Q: How do I know if my split junction box is functioning properly?

A: An advanced monitoring and diagnostic capabilities allows you to track the performance and health of your PV system in real-time. You can use it to monitor the operation of the split junction box and identify any issues. If you suspect that there may be an issue with the split junction box, it is always best to consult with a qualified solar technician or your PV system manufacturer for assistance.


Q: How do I maintain the split junction box?

A: Split junction boxes are typically low maintenance components of a PV system. However, it is always a good idea to periodically inspect the split junction box for signs of damage or wear, such as loose connections or damaged wiring. If you notice any issues, it is important to address them as soon as possible to ensure the safety and reliability of your PV system.


  • From simple to highly sophisticated.We provide finished custom-assembled assemblies. Design, creation, and sample manufacture are all part of our services.

  • Our items are RoHS Compliant and have been extensively tested. Our wire harnesses and cable assemblies are guaranteed to offer optimum function and cost-efficiency.

  • We offer the highest level of customer service and engineering support assisting in all phases of design to production. 

  • After years of hard work and unremitting efforts, our company has obtained ISO9000, ISO14000, OHSAS-18000, TS16949 and other system certifications. The company's products have passed the CCC product safety certification, Germany TUV and the United States UL, Canada CSA joint certifications.

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