20KW 63A IP54 380V White PV Photovoltaic Grid-Connected Distribution Box Outdoor Solar PV Combiner Box for Power Generation

Product Highlights

✔ Tiered architecture: The main circuit and protection modules are installed in separate zones, featuring clear wiring for efficient maintenance and servicing.
✔ Visual design: Features observation window panels for real-time monitoring of the operational status of measurement devices and protection modules.
✔ Compliance and Adaptation: Strictly adheres to grid connection standards, with comprehensive protection against overvoltage, undervoltage, overcurrent, and islanding.
✔ Flexible customization: Supports configurations across various power ratings, meeting diverse inverter grid connection requirements.

Product Categories

20KW 63A IP54 380V White PV Photovoltaic Grid-Connected Distribution Box Outdoor Solar PV Combiner Box for Power Generation

Rated voltage	AC380V, AC400V, three-phase four-wire
Rated frequency	50HZ±0.5HZ
Rated current	10A~400A
Rated power	5KW-200KW
Cabinet material	Cold-rolled steel plates, hot-dip galvanized, stainless steel.
Protection level	IP44, IP54, IP55, IP65; Outdoor type
Working temperature	-25℃~+60℃
Relative humidity	≤ 95% (no condensation)
Altitude	≤2000m
Salt spray grade	≥1000h (coastal area)
Installation method	Wall-mounted installation, floor-mounted installation, bracket installation.
Protection function	Overvoltage and undervoltage protection, overload protection, short circuit protection, lightning protection (SPD), leakage protection, voltage detection, etc.

Specifications

Product Specifications

■ Circuit breaker (main / branch) operates stably under high current, with independent protection for each branch.
■ Electric energy meter provides high-precision measurement, with an error of ≤ 1%, ensuring smooth settlement.
■ Islanding protection device responds in milliseconds, meeting grid connection acceptance standards.
■ Lightning surge protector (SPD) offers strong protection against lightning strikes, with a built-in failure indicator window.
■ Circuit status indicator lights enable quick identification of faults, saving time and effort in maintenance and operation.

How to Choose

Distributed Photovoltaic Ordinary Grid-Connected Box

① Single-phase power range: 5 - 20 kW
② Three-phase power range: 10 - 50 kW
③ Standard configuration components: Grid isolation switch, reclosing circuit breaker, large incoming line circuit breaker, lightning protection device
④ Protection level: IP65
⑤ Materials: Stainless steel, powder coating, engineering plastic*

Customized ordinary grid-connected box type for photovoltaic systems 1: Without metering compartment

*Three-phase power range: 100 - 200 kW;
*Standard components: Grid isolation switch, residual current circuit breaker, micro circuit breaker;
*Incoming line circuit breaker, lightning protection device;
*Protection level: IP65;
*Whether there is a metering terminal: No;
*Materials: Stainless steel, powder coating, engineering plastic;
*Box size: 950*900*250;

Customized ordinary grid-connected box type for photovoltaic systems 2: With metering compartment

*Three-phase power range: 150 - 300 kW;
*Standard components: grid isolation switch, residual current circuit breaker, micro circuit breaker;
*Incoming line circuit breaker, lightning protection device;
*Protection level: IP65;
*Whether there is a metering terminal: Yes;
*Materials: stainless steel, powder coating, engineering plastic;
*Box size: 1050*1350*250;

Customization dimension	Core advantage
Specification dimensions	Wall-mounted / floor-standing full-size customization, suitable for various installation scenarios
Loop configuration	The wiring method and current rating can be customized as needed, and are compatible with multiple inverters.
Protection function	Island protection / lightning protection / leakage protection and other functions are optionally equipped as needed, meeting grid connection standards.
Component brand	Support the customer's selection of specific brands, balancing quality and cost.
Structural Design	Door opening direction / Installation method customization, suitable for special spaces
Delivery of services	Comprehensive drawings + inspection reports. Quick delivery for bulk orders.

Production Workflow

Customization Capabilities

Company Overview

Established in 2022, the manufacturer mainly engages in the research, production and sales of distributed photovoltaic power distribution equipment, and also undertakes the construction, renovation and upgrading of photovoltaic power stations. The factory covers an area of 3,300 square meters. It possesses multiple qualifications such as ISO three systems, CQC, CE, patents, and software copyrights. It is equipped with automated production equipment and strictly controls quality throughout the process in accordance with the ISO9001 system.

Factory Profile

Packaging & Shipping Specifications

Certificate

Frequently Asked Questions

Q1: What is the primary function of a PV grid-connected distribution box?

A1: It serves as the safety interface between the solar inverter output and the utility grid. It integrates isolation, overcurrent protection, surge suppression, and monitoring devices to protect both the user's solar PV system and the power grid.

Q2: Can the distribution boxes be customized for different power ratings?

A2: Yes, configuration supports single-phase power setups (5-20 kW) and three-phase power setups (10-300 kW and above). The cabinet size, loop wiring, and protection modules can be tailored according to specific inverter configurations.

Q3: Are these combiner boxes suitable for outdoor environments?

A3: Yes, these boxes are built with high-quality materials (such as hot-dip galvanized steel, stainless steel, or engineering plastics) and have ingress protection levels ranging from IP44 to IP65, ensuring robust weather resistance for outdoor installation.

Q4: What types of safety protections are integrated into the grid-connected box?

A4: The systems feature comprehensive protection mechanisms including overvoltage and undervoltage protection, overload protection, short circuit protection, lightning surge protection (SPD), leakage protection, and anti-islanding control.

Q5: How does the metering compartment option work?

A5: For configurations that require grid connection acceptance with a physical meter, we offer designs equipped with dedicated metering compartments and terminal blocks. For configurations that do not require independent metering, non-metered standard boxes are available.

Q6: What certifications do these grid-connected boxes carry?

A6: The manufacturing processes conform to rigorous quality control guidelines. The products meet standards such as CE, CQC, and are produced under ISO9001 certified conditions to ensure complete grid connection compliance.

Product Detail

20KW 63A IP54 380V White PV Photovoltaic Grid-Connected Distribution Box Outdoor Solar PV Combiner Box for Power Generation

Product Description

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Product Detail

20KW 63A IP54 380V White PV Photovoltaic Grid-Connected Distribution Box Outdoor Solar PV Combiner Box for Power Generation

Product Description

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