
GYPV/12-1 DC Combiner Box
GYPV/12-1 PV Combiner Box combines 12 photovoltaic string inputs into 1 DC output, simplifying the connection between PV arrays, DC distribution cabinets and solar inverters. Each input channel is equipped with a DC fuse, while the output side integrates DC isolation switch and surge protection device for over-current, short-circuit and lightning protection.
Designed with IP65 outdoor protection, MC4 waterproof connectors and wall-mounted installation, it ensures reliable operation in harsh environments. Optional monitoring modules enable real-time monitoring of string current, voltage, temperature and protection status. Ideal for commercial and industrial solar PV systems, the GYPV/12-1 provides a safe, efficient and flexible DC collection solution.
•12-String PV Input Collection — Supports up to 12 photovoltaic string inputs with 1 DC output, simplifying PV array wiring and improving system installation efficiency.
•Integrated Protection Design — Equipped with DC fuses, surge protection device and DC isolation switch to provide over-current, short-circuit and lightning protection.
•Reliable Outdoor Performance — Features IP65 protection rating, waterproof MC4 connectors and wall-mounted installation design for stable operation in outdoor environments.
•Safe DC Power Management — Supports up to 1000V DC system voltage and 15A maximum input current per string, suitable for various solar PV applications.
•Optional Intelligent Monitoring — Optional monitoring module enables real-time detection of string current, voltage, internal temperature, SPD status and breaker status.
•Flexible Solar System Integration — Designed for connection between PV arrays and solar inverters, helping simplify DC wiring and improve photovoltaic system reliability.
•Wide Environmental Adaptability — Operates from -25℃ to +55℃ with up to 95% relative humidity tolerance, suitable for harsh installation conditions.
•Commercial & Industrial PV Applications — Ideal for rooftop solar systems, ground-mounted PV plants, commercial buildings and industrial renewable energy projects.
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/12-1 PV combiner box bus synthetic DC input of 12 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 | 12 | |
| Maximum output switch current | 180A | |
| 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) | 640*450*180 | |





