MAIN PRODUCTS

We provide DC Isolation Switch, Miniature Circuit Breaker, DC Surge Protector, Rapid Shutdown, Micro Inverter, Smart Electricity Meter and other components for Solar and Energy Storage System use.

INDUSTRY SOLUTIONS

We offer all needed DC and AC power distribution components for PV and energy storage systems use, which can be applied to various scenarios, such as residential rooftops, commercial buildings and industrial rooftops.

Residential Solar and Energy Storage System

Residential photovoltaic + energy storage power stations can be divided into various working modes such as backup power supply, self-use, peak shaving and valley filling, etc. By combining hybrid inverter and EPS switching box, the system can miximize the usage of mains power, photovoltaic power, and EPS energy storage power, greatly improving the utilization rate of electric energy.

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PROJECTS

PPOJOY Circuit Breaker

PPOJOY Circuit Breaker

Location: Brazil

PPOJOY Circuit Breaker

PPOJOY Circuit Breaker

Location: USA

PPOJOY Isolating Switch

PPOJOY Isolating Switch

Location: Saudi Arabia

PPOJOY Array-Level Rapid Shutdown

PPOJOY Array-Level Rapid Shutdown

Location: Germany

PPOJOY Array-Level Rapid Shutdown

PPOJOY Array-Level Rapid Shutdown

Location: Ireland

ABOUT PROJOY


Projoy Electric Co., Ltd (PROJOY ELECTRIC) was founded in 2011 and headquartered in Suzhou, China. It is a pioneer manufacturer in China that focusing on providing protection, safety and metering products, such as DC Isolation Switch, Miniature Circuit Breaker, DC Surge Protector, Rapid Shutdown, Micro Inverter, Smart Electricity Meter and other accessory products for PV and Energy Storage System use.

Our Vision

Focusing on the concept of “Switch to Safety”, we will never stop innovating for a safer and smarter new energy world.


Our Mission

To continue our dedication to providing a wide range of well-designed safety products, exceptional customer service, and great experiences.

PROJOY
14 +

Years experience in PV & energy storage industry

100 +

R&D talents globally

16 +

Production Lines

60 +

Exported to more than 60 countries

85 %

Of China's mainstream energy storage inverter / PAck manufacturer are using Projoy's DC MCB.

80 %

Of China's mainstream inverter manufacturers are using Projoy's PV isolators.

GLOBAL PARTNERS

Empower innovation in industries and continuously contribute towards a better future.

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NEWS & EVENTS

PROJOY2026-02-22

Essential Features to Look for in a DC Isolation Switch: A Comprehensive Guide

Essential Features to Look for in a DC Isolation Switch When it comes to electrical installations, the DC isolation switch plays a pivotal role in ensuring safety and efficiency. This guide will cover the **essential features** to consider when selecting a DC isolation switch, helping you make an informed decision for your applications. Understanding DC Isolation Switches DC isolation switches are

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PROJOY2026-02-21

Essential Components of Energy Storage Systems: A Comprehensive Overview

Energy Storage Systems (ESS) are becoming increasingly vital in today's energy landscape, enabling the efficient management of energy supply and demand. Understanding the components of these systems is crucial for professionals in the electrical industry, especially those involved with batteries, storage solutions, and charging technologies. At the heart of an energy storage system is the energy

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PROJOY2026-02-20

Understanding AC Connector Ratings: A Comprehensive Guide to Electrical Connectors

Understanding AC Connector Ratings: A Comprehensive Guide Table of Contents 1. Introduction to AC Connectors 2. Importance of AC Connector Ratings 3. Key Terminologies in AC Connector Ratings 4. Voltage Ratings Explained 5. Current Ratings and Their Significance 6. Environmental Considerations and Ratings 7. Safety Standards for AC Connectors 8. Choosing the Right

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