PV Isolator Switch | 1200V DC Rated for Solar Systems

All Categories
EN EN
PV Isolator Switch – Reliable DC Disconnection for Photovoltaic Systems

PV Isolator Switch – Reliable DC Disconnection for Photovoltaic Systems

ZHNYU ELECTRIC's PV isolator switches are engineered for photovoltaic applications, providing safe and reliable DC disconnection. With over 34 years of manufacturing expertise, our PV isolator switches ensure robust performance in solar power systems, from residential rooftops to utility-scale plants. Each unit is designed to handle high DC voltages up to 1200V and currents up to 63A, meeting the rigorous demands of solar installations. Our switches deliver over 10,000 mechanical and electrical operations, ensuring long-term reliability. They incorporate a visible break and positive contact indication, essential for maintenance safety. Tested under extreme conditions, they operate efficiently in temperatures ranging from -25°C to +55°C, suitable for harsh environments.
Get A Quote

Case Study

Utility-Scale Solar Plant in Spain

A 50MW solar plant in Spain required reliable DC isolators to ensure safe maintenance and system isolation. ZHNYU supplied 2,500 PV isolator switches rated at 1000V DC. The installation was completed ahead of schedule, and over two years, the switches performed flawlessly, with zero failures and minimal maintenance. The plant's operational efficiency increased by 15% due to reduced downtime. Our PV isolator switches met all local safety standards and contributed to the project's rapid payback period.

Rooftop System in Australia

An Australian residential complex installed a 200kW rooftop solar system. The installer chose ZHNYU PV isolator switches for their compact design and ease of installation. The switches provided safe disconnection for each string, allowing quick troubleshooting and maintenance. Since installation, the system has operated for over 18 months without any issues, and the client reported a 20% reduction in electrical faults. The comprehensive testing and high-quality materials used in our switches ensured compliance with Australian standards, gaining the trust of the installer.

Commercial Installation in the Netherlands

A commercial building in the Netherlands needed to upgrade its existing PV system to comply with new safety regulations. ZHNYU's PV isolator switches were selected due to their high breaking capacity and clear visual indication. The installation team completed the project with zero accidents, and the switches' robust design required no maintenance in the first year. The building's energy manager noted improved system reliability and peace of mind, leading to a repeat order for another facility.

Related products

ZYQ1 Automatic transfer switch VIEW DETAILS

ZYQ1 Automatic transfer switch

Terminal-Type Intelligent Automatic Transfer Switch VIEW DETAILS

Terminal-Type Intelligent Automatic Transfer Switch

Strip Fuse-Switch Disconnector VIEW DETAILS

Strip Fuse-Switch Disconnector

HH15 Fuse-Switch Disconnector VIEW DETAILS

HH15 Fuse-Switch Disconnector

ZHNYU ELECTRIC, with over three decades of expertise in low-voltage electrical components, has mastered the art of manufacturing PV isolator switches that stand as sentinels for photovoltaic systems across the globe. As the demand for renewable energy surges, so does the need for reliable, safe, and efficient disconnection solutions. Our PV isolator switches are not just components; they are the result of rigorous research, precision engineering, and a deep understanding of the challenges faced by solar installers and operators worldwide. Our manufacturing process begins with the selection of premium raw materials, including UL94-V0 rated flame-retardant plastics and silver alloy contacts, ensuring high conductivity and resistance to arc erosion.

Frequently Asked Questions

What is the purpose of a PV isolator switch?

A PV isolator switch is a safety device that provides a reliable means of isolating DC power from solar panels to prevent electrical shock during maintenance or emergency. It ensures the circuit is completely de-energized, enhancing safety for installers and technicians.
Solar panels generate DC voltage even when disconnected from the grid. An isolator switch guarantees a visible break in the circuit, allowing safe work on the system. Without it, there is a risk of electrocution and fire, making it a mandatory safety component in many regions.
The ratings should match your system's maximum DC voltage and current. For most residential systems, a 600V/32A switch is sufficient, but commercial systems may require 1000V/63A or higher. It's crucial to select a switch with a higher breaking capacity to handle fault conditions safely.
Yes, ZHNYU's PV isolator switches are designed for outdoor use with an IP65 rating, protecting against rain and dust. They operate reliably in temperatures ranging from -25°C to +55°C, ensuring performance in various climates, from tropical to cold environments.

Related Articles

SwitchLine OT: The Universal Power Switch

31

Aug

SwitchLine OT: The Universal Power Switch

View More
What is an Isolating Switch? A Key Component for Electrical Safety and System Stability

31

Aug

What is an Isolating Switch? A Key Component for Electrical Safety and System Stability

View More
The Fuse: The Unsung Hero of Circuit Protection

31

Aug

The Fuse: The Unsung Hero of Circuit Protection

View More
Why is an isolator switch required in every electrical panel installation?

12

Sep

Why is an isolator switch required in every electrical panel installation?

Need to comply with IEC 61439 & NEC safety standards? Discover the critical role of isolator switches in panel safety, maintenance, and regulatory compliance. Learn more now.
View More

Customer Testimonials

Michael Johnson
Reliable and Safe Disconnection

We installed ZHNYU's PV isolator switches on a 2MW solar farm in California. The switches have performed flawlessly for two years, providing safe disconnection during maintenance. The build quality is excellent, and the technical support was responsive. We've seen a 25% reduction in service time due to the easy operation.

Ahmed Al-Zahrani
Excellent Quality and Fast Delivery

Our company in Dubai ordered 1,500 PV isolator switches for a commercial project. The delivery was quick, and the switches exceeded our expectations in terms of durability and performance. They withstand high temperatures without any issues, and we appreciate the RoHS compliance. We definitely will choose ZHNYU for future projects.

Get a Free Quote

Our representative will contact you soon.
Email
Mobile/WhatsApp
Name
Company Name
Message
0/1000
dc isolator solar dc isolator switch solar isolator switch pv array dc isolator pv array dc isolator switch solar isolator solar panel isolator switch dc solar isolator dc isolator pv pv dc isolator dc rotary isolator solar pv isolator switch dc isolators solar pv pv array isolator solar pv isolator dc voltage isolator isolator for solar panels solar panel dc isolator ac isolator in a pv system solar array dc isolator
High-Voltage DC Rated Up to 1200V

High-Voltage DC Rated Up to 1200V

Engineered to process direct current voltages reaching 1200V, ZHNYU ELECTRIC’s PV isolator switches meet the demands of modern string architectures. High-voltage insulation barriers prevent dielectric breakdown and flashover during load isolation. Tested under rigorous IEC 60947-3 procedures, these switches provide wider safety margins, lower thermal losses, and long-term durability for utility-scale solar farms and commercial rooftop systems globally.
Visible Break and Positive Indication

Visible Break and Positive Indication

Featuring an explicit visual window and positive contact position indication, our PV isolator switch allows site technicians to verify circuit de-energization instantly before starting maintenance. Built with anti-weld silver-alloy bridge contacts, the mechanism prevents contact sticking under high fault currents. This fail-safe architecture streamlines Lockout/Tagout (LOTO) protocols and significantly lowers electrical accident risks across solar generation assets.
image

ZHNYU ELECTRIC provides certified low-voltage electrical components—including isolating switches, MCCBs, ACBs, ATS, and DC fuses—for power, industrial, and photovoltaic applications. ISO9001, CE, CCC, RoHS compliant. Serving 60+ countries. Partner with us today.ZHNYU ELECTRIC, founded in 1992, is a professional manufacturer integrating R&D, production and sales of low-voltage electrical components and accessories.

USEFUL LINKS

East Qinghe Road, Shahu Industrial Zone, Liushi Town, Yueqing, Wenzhou, Zhejiang

+86-13587761982

[email protected]

Newsletter

ZHNYU Electric: Explore our products, contact us for business cooperation and subscribe newsletters for latest industry updates.

Copyright © 2026 by ZHNYU ELECTRIC - Privacy Policy