

GYPV/16-1 DC Combiner Box
GYPV/16-1 DC Combiner Box is designed for photovoltaic solar power systems, combining up to 16 PV string inputs into 1 DC output channel. Supporting up to 1000V DC system voltage, each input string is equipped with independent PV fuses for overcurrent protection. Integrated with DC surge protection device (SPD) and DC isolation switch, it provides reliable lightning protection, short-circuit protection, and safe DC power distribution between solar arrays and inverters.
With IP65 outdoor protection, wall-mounted installation design, and optional intelligent monitoring functions, the GYPV/16-1 PV combiner box is suitable for commercial and industrial solar PV systems, large-scale photovoltaic power plants, and customized solar energy projects.
•16-String PV Input Combining — Supports up to 16 PV string inputs with 1 DC output, simplifying solar system wiring between PV arrays and inverters.
•1000V DC High Voltage Support — Designed for photovoltaic systems with up to 1000V DC voltage rating, suitable for commercial and industrial solar applications.
•Independent String Protection — Each PV input channel is equipped with a DC fuse to provide reliable overcurrent and short-circuit protection.
•Integrated Lightning Protection — Built-in Type II SPD provides effective surge protection with 20kA nominal and 40kA maximum discharge current capability.
•IP65 Outdoor Protection — Features a weather-resistant enclosure for stable operation in outdoor photovoltaic environments.
•Safe DC Isolation Design — Equipped with DC isolation switch and optional circuit breaker for safe maintenance and reliable system operation.
•Optional Intelligent Monitoring — Supports monitoring functions for string current, temperature, SPD status, breaker status and output voltage.
•Flexible Wall-Mounted Installation — Compact design enables easy installation, maintenance and space-saving deployment in PV systems.
Features
Overview
- High reliability
With DC FUSE
With DC Surge Protection Device
With DC Circuit breaker or DC load isolation switch. - Strong adaptability
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. - Flexible configuration
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 modifed.
Description
GYPV/16-1 PV combiner box bus synthetic DC input of 16 PV components to 1 output. Each channel is with a fuse. Output side is equipped with lightning protection and circuit breaker. It greatly simplify input wiring of DC power distribution cabinet and inverter.
Realize lightning protection, short circuit protection and grounding protection. PV combiner box divided into two types: intelligent box and non-intelligent box. Intelligent PV combiner box is equipped with monitoring unit, then detect input current of each string, detect inside temperature, detect lightning protection status, detect circuit breaker status and summarize output voltage and so on.
Design and configuration strictly accordance with the “Technical specification for photovoltaic junction equipment” CGC/GF 037:2014.
Provide users with a safe, brief, beautiful and applicable photovoltaic system products.
The product adopts outdoor wall mounted type, which adapt to the harsh environment. In addition to the core components, the other can be customized by user requirements.
Schematic Diagram

Technical Parameter
| Data | ||
| Electric parameter | ||
| System maximum dc voltage | 1000 | |
| Maximum input current for each string | 15A | |
| Maximum input strings | 16 | |
| Maximum output switch current | 240A | |
| Number of inverter MPPT | 1 | |
| Number of output strings | 1 | |
| Lightning protection | ||
| Category of test | II Grade protection | |
| Nominal discharge current | 20kA | |
| Maximum discharge current | 40kA | |
| Voltage protection level | 3.8kV | |
| Maximum continuous operating voltage Uc | 1050V | |
| Poles | 3P | |
| Structure characteristic | Plug-push module | |
| System | ||
| Protection grade | IP65 | |
| Output switch | DC isolation switch (standard)/DC circuit breaker(optional) | |
| MC4R waterproof connectors | Standard | |
| PV DC fuse | Standard | |
| PV surge protector | Standard | |
| Monitoring module | Optional | |
| Preventing diode | Optional | |
| Box material | PVC | |
| Installation method | Wall mounting type | |
| Operating Temperature | -25℃~+55℃ | |
| Elevation of temperature | 2km | |
| Permissible relative humidity | 0-95%, no condensation | |
| Mechanical parameter | ||
| Width x High x Depth(mm) | 800*500*180 | |





