The PV combiner box is suitable for grid-connected and off-grid power generation. The main function is to sink the input of PV cell array at one level, and to provide fast cut-off short-circuit fault protection and lightning protection to avoid damage to PV panels and inverters in case of failure. It is also used to reduce the connection of photovoltaic arrays to the inverter, optimize the system structure, improve reliability and maintainability, and optimize power generation efficiency. The parallel mode has anti-backflow and anti-reverse access functions.
We offer a plug & play solution that accommodates overcurrent protection devices, disconnectors and surge protective devices (SPDs) in one solar combiner box. Depending on the application, combiners are equipped with monitoring devices to measure current, voltage and temperature to ensure the availability of the strings and to maximize generation. The string combiner boxes form subsystems that can be standardized according to the number of strings, voltage and rated current.
| Type |
SWHX-8 |
SWHX-12 |
SWHX-16 |
SWHX-24 |
| Input Channels |
Below 8 |
8-12 |
13-16 |
17-24 |
| Max Input Voltage |
DC 1000V |
| Max Output Current |
Below 100A |
100/125/160A |
160/200A |
250A |
| Protection Grade |
IP65 |
| Size (W*H*D mm) |
630*500*180 |
720*500*180 |
800*500*180 |
850*500*200 |
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Frequently Asked Questions
What is the main purpose of a PV combiner box?
The primary function is to consolidate multiple PV string inputs into a single output, providing overcurrent, short-circuit, and lightning protection to safeguard panels and inverters.
Does this combiner box support high-voltage systems?
Yes, it is designed for high-voltage operations with a maximum input voltage rating of DC 1000V.
Is the enclosure suitable for outdoor installation?
Absolutely. The box features a stainless steel shell with an IP65 protection grade, making it waterproof and dustproof for harsh environments.
What safety features are included in the SWHX series?
The series includes surge protective devices (SPDs), disconnectors, and anti-backflow/anti-reverse access functions for comprehensive system safety.
Can I monitor the performance of each string?
Yes, these combiners can be equipped with monitoring devices to measure real-time current, voltage, and temperature for maximum efficiency.
How many input channels are available?
We offer multiple configurations ranging from below 8 circuits up to 24 circuits to match different solar array sizes.
RayBoost Solar
