Zhejiang Zhongkai Technology Co., Ltd. is the creator and pioneer of control and protection switchgear (CPS) in China. It is a professional provider of research and development, production, manufacturing, sales, and solutions for low-voltage control and protection systems and low-voltage distribution systems (motor control and protection systems, intelligent distribution systems). Zhongkai has pioneered and developed domestic control and protection switchgear (CPS) technology and products, and through persistent and long-term efforts, has cultivated and developed the CPS product market. After more than 20 years of unremitting efforts, Zhongkai's products have been widely used in industries such as petroleum, chemical, steel, metallurgy, mining, electricity, machinery, shipbuilding, national defense, light industry, and municipal construction, as well as in commercial and civil construction fields such as airports, rail transit, sports venues, exhibition centers, computer centers, and public health. Zhongkai integrates the latest development of electronics, intelligent control, intelligent power distribution, information, Internet, big data, industrial cloud and other technologies to provide users with more high-quality value-added services such as higher performance, higher reliability, more diversified, multi series, and large current capacity serialized CPS products and system solutions. “KB0”、 The brands "Zhongkai", "Zhongkai KB0", and "KB0 Zhongkai" have been highly recognized by the market and have a high level of visibility and influence in the domestic market. Zhongkai's core products include the KB0, KB02, and ZKB series of control and protection switchgear (CPS), XBKF series of fire electrical control devices, low-voltage distribution systems (motor control and protection systems, intelligent distribution systems), low-voltage intelligent monitoring systems, intelligent fire protection systems, energy consumption management systems, and other system solutions, as well as ZKSP and ZKCB dual power automatic transfer switches ZKW1 universal circuit breaker, ZKM1, ZKM3 plastic shell circuit breaker, ZB3 small circuit breaker, ZB3LE, ZB3CLE small residual current circuit breaker, ZB3G small isolation switch, ZKSD-G first level surge protector, ZKSD-S second level surge protector, ZKSD-D third level surge protector, ZKSD-WE wind power special surge protector, ZKSD-PV DC photovoltaic surge protector and other series of products have formed a complete and diverse product system of components and system solutions with Zhongkai characteristics. Since its establishment, Zhongkai has always adhered to the concept of focusing on professionalism and innovative development, and upheld the value of "customer-centric". Since the early 1990s, Zhongkai has been collaborating with relevant domestic research institutes and universities, pursuing a path of independent intellectual property innovation and development. Zhongkai and Shanghai Electric Science Research Institute have jointly completed the research and development of KB0 control and protection switchgear, a national key enterprise technology development project during the Eighth Five Year Plan period. Zhongkai has long adhered to technological innovation, developed new technologies, new products, enriched product lines, and expanded product varieties. Its products have been widely used and verified in the market for more than 20 years, highlighting high reliability and cost-effectiveness, and have gained a good reputation and widespread praise. In 2005, Zhongkai collaborated with Tongji University to establish the "Zhongkai Low Voltage Control and Protection Switch Provincial High tech Enterprise Research and Development Center" recognized by the Zhejiang Provincial Department of Science and Technology; In 2008, domestic higher education institutions began using the new technology of Zhongkai KB0 product in teaching. In 2016, Zhongkai KB0 product technology was included in the national "Twelfth Five Year Plan" and "Thirteenth Five Year Plan" textbooks for general higher education and the planning textbooks for intelligent buildings in general higher education. Zhongkai also participated in the compilation and publication of higher education textbooks such as "Building Electrical Control Technology" and "Electrical Control and PLC Application"; In 2016, Zhongkai undertook the research and development task of the Ministry of Housing and Urban Rural Development's "Research on Intelligent Control System for Building Fire Equipment Based on Energy saving CPS" project, which passed the ministerial level acceptance. Zhongkai is the main drafting unit of the national standard GB/T 14048.9 "Control and Protection Switchgear", and also participated in the preparation of the industry standard JB/T 10980 "Transfer Switchgear". Zhongkai has also promoted and participated in the compilation of the national building standard design drawings 16D303-2 "Common Fan Control Circuit Diagram", 16D303-3 "Common Pump Control Circuit Diagram", and the new fourth edition of the "Industrial and Civil Power Supply and Distribution Design Manual". In 2008, Zhongkai KB0 control and protection switchgear was included in the industry standard JGJ16-2008 "Code for Electrical Design of Civil Buildings" of the People's Republic of China. In December 2019, the "Common Motor CPS Control Circuit Diagram" Southwest 19D301 standard drawing set, edited by China Southwest Architectural Design and Research Institute, jointly compiled by Southwest Architectural Electrical Engineering Design Information Network and Zhejiang Zhongkai Technology Co., Ltd., was published and distributed. In 2019, control and protection switchgear represented by Zhongkai KB0, was published and distributed. CPS has been included in the national standard GB51348-2019《 The publication and distribution of the "Electrical Design Standards for Civil Buildings" and the aforementioned national standards and atlases have provided convenience for design and research units to select and apply KB0 products, and provided solutions for customers to use the products. It is a value-added service provided to customers, which has taken the application of Zhongkai KB0 products to a new height. In 1999, the Ministry of Science and Technology and four other ministries listed the research and development project of Zhongkai KB0 series products as a national key new product and a national torch plan project. In 2000, 2005, and 2012, the research and development project of Zhongkai KB0 series products was listed as a free funding project of the Ministry of Science and Technology's "Technology Innovation Fund for Small and Medium sized Enterprises". The company has been recognized with titles such as "National High tech Enterprise", "Software Enterprise", "Zhejiang Technology R&D Center", "Zhejiang Science and Technology Small and Medium sized Enterprise", "Zhejiang Innovation Pilot Enterprise", "Zhejiang Patent Demonstration Enterprise", and "Zhejiang Province AA Enterprise for Contract Compliance and Creditworthiness". In 2008, Zhongkai, as a manufacturer of control and protection switchgear selected for the Beijing Olympics, applied its products to equipment in multiple sports venues and was awarded the "Beijing 2008 Olympic Engineering · Excellent Product Award" and "Beijing 2008 Olympic Engineering · Special Contribution Award" by the Beijing Organizing Committee for the Olympic Games. The product is also widely used in large-scale venues and national key engineering projects such as the 2009 National Games, 2010 Shanghai World Expo, Guangzhou Asian Games, 2011 Universiade, Wuhan Guangzhou High speed Railway, Beijing Shanghai High speed Railway, Guangzhou Shenzhen Hong Kong High speed Railway, Jinwen High speed Railway, Xi'an Metro, Guangzhou Metro, Lanzhou Metro, Shanghai Metro, Beijing West Railway Station, Southwest Hospital, Chengdu Shuangliu Airport, Chengdu Tianfu International Airport, Capital Airport, Beijing Daxing Airport, Kunming Airport, Chongqing Jiangbei Airport, Changsha Huanghua Airport, and Aircraft Carrier Base; As well as a large number of newly built and renovated industrial projects such as Yunnan Mengzi Iron Mine, Shenhua Ning Coal, Beijing Yanshan Petrochemical Plant, Shaanxi Sponge Titanium, Bayi Steel Plant, and AVIC Commercial Aviation Engine Base, equipment has been widely used and has won wide praise and good recognition from customers. With the rapid development of market applications, Zhongkai has established good cooperative relationships with customers and achieved win-win cooperation. Zhongkai's marketing network covers the whole country, with more than ten branches in seven major regions including East China, South China, Central China, North China, Southwest, Northwest, and Northeast China, as well as marketing outlets spread across 31 provinces, municipalities, and autonomous regions. The professional marketing service team is composed of more than 100 professional marketing personnel and sales engineers, relying on various marketing outlets across the country to provide customers with high-quality and efficient value-added services in a timely and efficient manner. Zhongkai will continue to promote technological innovation and marketing model innovation, and is willing to engage in more extensive technical and business cooperation with customers. We will provide customers with high-quality products and value-added services in the long run, create greater value for customers, and achieve win-win cooperation.