MCB 14way Plastic Junction PV Combiner Box

Basic Specifications

Certification

ISO9001:2000

Form

All-packaged Type

Operation Voltage

Low Voltage

Size

2p~36p

Application

Power Plants

Shell Material

ABS / PVC

Protection Grade

IP40 / IP65

Mounting

Embedded, Surface, Wall mounting

Transport Package

Carton

Specification

4, 7, 10, 12, 14, 16, 18, 20 way

HS Code

8537209000

Capacity

10000PCS/Month

PV Combiner Box Overview

The combiner box is a wiring device in the photovoltaic power generation system that ensures the orderly connection and confluence function of photovoltaic modules. This device can ensure that the photovoltaic system is easy to cut off the circuit during maintenance and inspection, and reduce the range of power outage in case of photovoltaic system failure. The combiner box means that the user can connect a certain number of photovoltaic cells with the same specification in series to form a photovoltaic tandem, and then connect several photovoltaic tandem to the photovoltaic combiner box in parallel. After converging in the photovoltaic combiner box, through the controller, DC distribution cabinet, Solar inverter, and AC distribution cabinet, a complete photovoltaic power generation system can be formed to achieve grid connection with the mains.

Product Key Features

High Reliability: Equipped with DC FUSE, DC SPD, and DC circuit breaker or DC load isolation switch.
Environmental Protection: IP65 design, waterproof, anti-dust, and anti-ultraviolet. Undergoes strict testing for high and low temperature environments.
User-Friendly Installation: Simple setup with simplified system wiring and convenient connection points.
Durable Construction: Box body made of cold rolled steel and other premium metal materials or high-grade PVC.
Wide Compatibility: Suitable for single crystal silicon, polycrystalline silicon, and thin film solar modules with adjustable current ratings for fuses and breakers.

Technical Parameters

Type	PV1/1	PV2/1	PV3/1	PV4/1(4/2)	PV6/1(6/2)
Electric Parameter
System maximum dc voltage	1000V DC
Maximum input current for each string	15A
Maximum input strings	1	2	3	4	6
Maximum output switch current	32A	32A	32A	63A	125A
Lightning Protection
Max. PV voltage (d.c.) (Ucpv)	1000V DC
Max. discharge current (8/20 µs) (Imax)	40kA
Voltage protection level (Up)	4.0kV
System Configuration
Protection grade	IP65
Output switch	DC MCB(optional) / DC isolation switch(standard)
Waterproof Connectors	PG / MC4
Operating Temperature	-25 °C ... +55 °C

Frequently Asked Questions

What is the purpose of a PV Combiner Box in a solar system?

It serves as a central wiring hub that collects DC power from multiple solar strings and converges it into a single output, providing protection and making the system easier to manage.

Is this combiner box suitable for outdoor installation?

Yes, models designed with an IP65 rating are waterproof, dustproof, and UV resistant, making them ideal for outdoor environments and various weather conditions.

What safety protections are integrated into the device?

The box typically includes DC fuses, Surge Protective Devices (SPD) for lightning protection, and DC circuit breakers or isolation switches for circuit safety.

Can I use this with different types of solar modules?

Absolutely. It is compatible with single crystal silicon, polycrystalline silicon, and thin film solar modules.

How many strings can be connected to the box?

Depending on the specific model selected, it can accommodate from 1 string up to 6 strings (or more for specific configurations like 2p~36p).

What materials are used for the enclosure?

The enclosures are generally constructed from high-quality PVC, ABS, or cold-rolled steel to ensure durability and protection of the internal components.

MCB 14way Plastic Junction PV Combiner Box

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MCB 14way Plastic Junction PV Combiner Box