Solar Energy Distribution & Protection Solutions

Complete AC & DC Protection for Safe, Reliable, and Efficient Solar Power Systems

TOSUNLUX provides a comprehensive range of solar distribution box and solar protection devices, designed to ensure long-term safety, reliability, and efficiency for both DC and AC sides of photovoltaic systems.

1994 Founded on a Commitment to Progress

200+ Highly Skilled Technical Professionals

30+ Exclusive patents and advancements

1000+ Extensive and Talented Workforce

TOSUNLUX Solar Protection System Overview

TOSUNLUX provides a full range of solar protection and distribution components, covering every stage of energy conversion — from PV arrays to load distribution.

DC Side Protection (PV Array to Inverter)

AC Side Distribution (Inverter to Load)

PV Connection & Installation Components

DC Side Protection (PV Array to Inverter)

AC Side Distribution (Inverter to Load)

PV Connection & Installation Components

Why Choose TOSUNLUX

As a brand manufacturer with over 26 years of experience, TOSUNLUX focuses on building high-quality, certified electrical products, but branded solutions trusted by global partners.

Proprietary Brand Commitment

We only supply TOSUNLUX brand products. This ensures you receive long-term, consistent brand support and protected regional partnership.

Qualidade Certificada

All components meet IEC, CE, and TUV standards for international solar projects.

Comprehensive Product Line

From DC to AC side, offering a full protection chain for complete PV systems including solar distribution box, dc isolator, solar protection devices, e solar circuit breaker.

Reliable Brand Manufacturing

In-house testing ensures every unit meets strict performance standards.

Durable Design

Components are tested for high temperature, humidity, and UV resistance.

Global Trust

Serving distributors, EPCs, and installers in 90+ countries.

Reliable Solar Distribution & Protection for Every PV Application

As a trusted manufacturer of solar protection devices e distribution solutions, TOSUNLUX provides reliable, durable, and efficient products tailored for diverse solar energy applications. Our solutions integrate DC isolator switches, solar circuit breakers, PV combiner boxes, and DC fuses to ensure safe and stable operation under all conditions.

Residential rooftop systems

Commercial PV projects

Industrial solar plants

Off-grid & rural electrification

Residential rooftop systems

Commercial PV projects

Industrial solar plants

Off-grid & rural electrification

TOSUNLUX focuses on safety, reliability, and seamless integration — helping EPC contractors, installers, and distributors deliver high-quality PV systems with confidence.

TOSUNLUX — Powering the Future of Clean Energy

For over two decades, TOSUNLUX has supported renewable energy projects across Southeast Asia, Africa, the Middle East, and South America.

Our goal is simple: deliver safe, efficient, and accessible solar distribution and protection solutions for the global solar energy industry.

Certified for Global Solar Standards

Quality and safety are at the core of every TOSUNLUX product. Our DC MCBs, DC isolating switches, and other solar protection devices are certified by leading international authorities — including Intertek, CB Scheme, and CE.

Attestation EU_Safety---ST ST-D Distribution Box

ST ST-D Waterproof Panel Board ROHS_页面_1

Solar Distribution & DC Protection Insights

Explore our curated blog articles to deepen your knowledge of solar energy distribution, DC protection devices, and PV system components. Learn best practices for selecting solar distribution boxes, DC isolators, solar circuit breakers, and other essential equipment to ensure safe, reliable, and efficient photovoltaic systems.

Enhance your solar systems with certified PV system components, solar distribution box, and solar protection devices from TOSUNLUX.

Contact our team to find the ideal protection setup for your project.

Solar Energy Distribution & Protection Solutions

TOSUNLUX Solar Protection System Overview

PV DC Isolator Switch

DC MCB / DC Circuit Breaker for Solar

Caixa combinadora solar fotovoltaica

Surge Protective Device (SPD)

Solar Breaker / AC MCB / RCCB

AC Contactor & Relay

AC Distribution Box

Solar Connectors & PV Cables

IP65 Waterproof Enclosures