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Changeover Breaker
Key features include broad compatibility (replacing various national switch standards), reliable load handling under normal conditions, and multi-scenario adaptability across industrial, commercial, and infrastructure applications.
Why Choose
CNC Changeover Breaker
The YCB3Z-40 Changeover Switch can switch on, load and break the circuit under normal conditions,using as Switch Disconnectors.
| Rated Voltage | 240/415V |
| Rated Current | 16,25,32,40A |
| Rated Frequency | 50/60Hz |
| Number of Poles | 1,2,3,4P |
| Contact form | 1-0-2 |
| Electrical Life | 1500 Cycles |
| Mechanical Life | 8500 Cycles |
About CNC Electric
CNC Electric was founded in 1988 with the launch of our inaugural molded case circuit breakers — marking the beginning of our journey in power solutions. With a focus on product development and manufacturing, we reorganized into a corporate group by 1995 and introduced our first full low-voltage series, earning a reputation for rugged reliability.
Many of our products are CE, TUV, and RoHS certified, ensuring reliability and compliance. We focus on both efficient production and environmental responsibility, integrating sustainable practices into our processes.
Solution
We provide our customer with profitable growth by offering integrated comprehensive electrical solution.
Bulk Wholesale
Global supply chain support with competitive pricing for large quantity orders. Dedicated account managers and flexible delivery terms.
WhatsApp: +8618958711903 E-mail: [email protected]OEM Partnership
Custom manufacturing solutions tailored to your brand requirements with strict quality control and confidential production.
Dealer Network
Join our global dealer program with exclusive territories, marketing support, and technical training resources.
Relevant Case
Angola's Natural Gas Processing Plant Project
Donglin Cement Plant Electrical Distribution System Upgrade
Nigeria Water Pump Control Solution Project
Nikopol Ferroalloy Plant Electrical Upgrade
Nikopol Ferroalloy Plant Upgrade
Project Introduction for Bulgarian Factory Electrical Project
FAQ
What is the difference between a transfer switch and changeover?
They are often used interchangeably. A changeover switch is a general term for switching between power sources, while a transfer switch typically refers to automatic models.
Can I install a changeover switch myself?
Simple manual switches: Yes, if you follow electrical codes and have wiring experience. Automatic/heavy-duty switches: Hire a professional to ensure safety.
What does a changeover switch do?
Switches power between two sources (e.g., grid to generator) to maintain continuous supply, critical for backup systems in homes or industries.
What are the common problems with changeover switches?
Contact wear, loose connections, and incorrect wiring. Symptoms include arcing, overheating, or failure to switch, requiring regular inspection.
What certifications do your contactors have?
Our contactors comply with international safety standards and mainstream certifications for global markets.
Do you support OEM/ODM services?
Yes, we offer OEM/ODM customization for contactors, including branding, specifications, and design tailored to client needs.
What is the lead time for contactor orders?
Lead time varies by region and order volume; contact our team for a detailed quote based on your location.
How to find local contactor distributors?
Please reach out to our sales team via [contact email/phone] for authorized distributor information in your region.
CNC=CREATE+NEW+CENTURY
Hi, I run a business in Portugal and I’m interested in bringing CNC Electric to my market. Do you already have a distributor here? If not, I’d love to explore the possibility of working together as a distributor.
Could you share some details on pricing, logistics support, and any certification requirements? Also, do you offer exclusive distribution agreements?
——Gonçalo Batalha
Olá, tenho uma empresa em Portugal e estou interessado em trazer a CNC Electric para o meu mercado. Vocês já têm um distribuidor aqui? Caso contrário, gostaria de explorar a possibilidade de trabalhar como distribuidor.
Poderiam compartilhar detalhes sobre a política de preços, suporte logístico e requisitos de certificação? Além disso, oferecem acordos de distribuição exclusiva?
——Gonçalo Batalha
Dear CNC Electric Team, This is Abdulrahman Al-Faisal,Business Development Manager in ABC company based in Riyadh Saudi Arabia, and We are looking for an OEM partner for LV components and as I know CNC Electric is a reputed and high-quality products manufacturer.
I would like to have an online meeting with you to introduce our company and business models so if you are interested we will visit your factory to complete a mutual assessment and move forward with cooperation as per the agreed business model——Abdulrahman Al-Faisal
Dear CNC Electric Team,We are a panel builder integrator and are looking for reliable low-voltage electrical components. Have you supplied solutions for projects in data center before?If so, could you share some case studies or references of similar projects? We would like to evaluate how CNC Electric products perform in real-world applications before making a purchasing decision.——Ivan Petrov
Здравствуйте, наша компания занимается производством плат для ЦОД в России. Мы ищем надежного поставщика низковольтного оборудования. Есть ли у вас реализованные проекты в сфере центров обработки данных? Если да, можете ли вы привести примеры или ссылки? Мы хотели увидеть, как продукция CNC Electric работает в реальных условиях. —— Иван Петров
Dear CNC Electric Team, We’re bidding for the Kenya National Grid Expansion Project, and your products align with the technical requirements in the tender.
Could you share the necessary certifications, technical datasheets, and details on after-sales support? Also, do you offer any special commercial support for large-scale government projects in Africa?
——Joseph Otieno
Dear CNC Electric Team, We are a renewable energy company based in Brazil, specializing in solar power projects for industrial and commercial applications. We’re looking for reliable electrical solutions for our photovoltaic installations.
Does CNC Electric offer DC MCB, MCCB, RCCB, or fuses designed for solar applications? Additionally, do you provide technical support, local certifications, or customized solutions for large-scale solar projects? If you have any successful case studies in this sector, we’d love to review them.
——Lucas Oliveira
Olá, Somos uma empresa de energia renovável com sede no Brasil, especializada em projetos solares para aplicações industriais e comerciais. Estamos em busca de soluções elétricas confiáveis para nossas instalações fotovoltaicas.
A CNC Electric oferece disjuntores DC MCB, MCCB, RCCB ou fusíveis projetados para aplicações solares? Além disso, vocês fornecem suporte técnico, certificações locais ou soluções personalizadas para projetos solares de grande escala? Se tiverem estudos de caso bem-sucedidos nesse setor, gostaríamos de analisá-los.
——Lucas Oliveira
I'm interested in using CNC Electric products for our electrical installation projects. I’m especially keen to learn more about the wifi breaker—how it works, its technical specs, and pricing details. Could you share your product catalog, price list, and any information on current stock availability? Also, do you offer any technical support or training for installation?
——Miguel Sánchez
Hola,Soy instalador eléctrico en España y estoy interesado en utilizar los productos de CNC Electric en mis proyectos. Me gustaría obtener más información sobre el Wifi Breaker, sus aplicaciones, especificaciones técnicas y precio.¿Podrían enviarme un catálogo de productos, lista de precios y disponibilidad de stock? Además, ¿ofrecen formación técnica para la instalación?
—Miguel Sánchez
