



GYPV/2-1 DC Combiner Box
GYPV/2-1 DC Combiner Box is designed for small-scale photovoltaic systems, supporting 2 PV input channels and 1 DC output for single MPPT solar inverters. It supports 550VDC and 1000VDC system voltage options, integrating PV fuses, surge protection device and DC isolation switch to ensure safe and reliable DC power distribution. Made with flame-retardant PVC engineering material and IP65 protection, it provides excellent resistance to dust, water, UV and harsh outdoor environments. Ideal for residential solar PV systems, rooftop installations and small photovoltaic projects.
•Compact PV Protection Solution — Supports 2 PV string inputs and 1 DC output, providing a simple and efficient DC combining solution for small photovoltaic systems.
•Flexible Voltage Compatibility — Available in 550VDC and 1000VDC versions, suitable for different single MPPT solar inverter applications.
•Integrated Safety Protection — Equipped with PV DC fuse, surge protection device and DC isolation switch to provide overcurrent, lightning and maintenance protection.
•Durable PVC Enclosure Design — Uses flame-retardant PVC engineering material with excellent resistance to impact, UV radiation and outdoor environmental conditions.
•Reliable Lightning Protection — Features Class II surge protection with 20kA nominal discharge current and 40kA maximum discharge current for improved system safety.
•IP65 Outdoor Protection — Provides dustproof and waterproof protection, ensuring stable operation in outdoor photovoltaic installations.
•Easy Wall-Mounted Installation — Compact wall-mounted design simplifies installation and saves space in residential and small solar projects.
•Optional Smart Monitoring — Supports optional monitoring module for PV current, temperature, surge protection status and system operation data.
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/2-1 combiner box is suitable for inverter (MAX input voltage DC550V /DC1000V, 2 PV input channel, 1 output channel, single MPPT inverter). Box body is made of PVC engineering materials, with test for fire retardant, temperature rise, anti impact, anti ultraviolet, and other testing. IP65 protection grade.
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.
Schematic Diagram

Technical Parameter
| Data | ||
| Electric parameter | ||
| System maximum dc voltage | 550 | 1000 |
| Maximum input current for each string | 15A | |
| Maximum input strings | 1 | |
| Maximum output switch current | 20A/32A | |
| 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 | 2.5kV | 3.8kV |
| Maximum continuous operating voltage Uc | 630V | 1050V |
| Poles | 2P | 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) | 300*260*140 | |





