Full-scenario coverage, grounded in technical prowess
Relying on six major R&D platforms, including the nationally recognized Enterprise Technology Center and Postdoctoral Research Station, as well as six core technologies such as air arc regulation, electromechanical thermal magnetic simulation, integrated measurement, control, and protection, intelligent power distribution, digital twin design, and key process manufacturing, Changshu Switch has built a product matrix that meets the needs of all new energy scenarios:
Photovoltaic field:
Centralized solution: With the frame-molded integrated circuit breaker as the core, the CM5Z-1600 AC series and CM5G-1250 DC series, characterized by their small size, high performance, and high reliability, cover inverter AC and DC application scenarios. String solution: The combination of CM6S-400HU (AC1000V/42kA) and CW3-5000SUA (AC1140V/85kA) features compact size, high breaking capacity, and long service life.
Energy storage field: The high and low voltage coordination scheme establishes a safety line of defense, covering DC1000V~1500V platforms.
Centralized solution: On the new generation 2-pole platform, CW3MGDC-1600HU, CW3GDC-2500HU, and CW3GDC-4000HU are launched, featuring small size, high performance, flexible installation, and other excellent characteristics, covering DC application scenarios.
String solution: CM6SDC-630HU/2-pole DC circuit breaker supports DC1500V, with a 40% reduction in size, suitable for household and commercial/industrial energy storage, and highly recognized by leading enterprises such as Huawei.

Wind power sector:
The full-power converter solution utilizes CW3-5000SUA/CW3-6300HUA circuit breakers, achieving breaking capacities of 85kA/90kA and short-time withstand currents of 85kA/1s and 90kA/1s at an AC1140V voltage level. Thanks to its unique arc control technology, its size is reduced by 30% compared to traditional products.
The double-fed solution is compatible with 4.X-10.X MW models. CW3-4000PU maintains a breaking capacity of 55kA at AC2000V. CW6-4000, a high-end model, boasts a mechanical lifespan of up to 50,000 cycles (maintenance-free). It integrates traditional contactor functions, effectively reducing costs.

Hydrogen production field:
For the hydrogen production scenario utilizing renewable energy, our company has launched AC/DC circuit breaker products tailored for wind power/photovoltaic hydrogen production. The CW3ZDC-4000 DC circuit breaker supports DC1500V, with a breaking capacity of 85kA and a short-time withstand current of 85kA/1s, meeting the high reliability requirements of water electrolysis equipment.

Innovative core, defining competitive barriers
The core products exhibited this time are all equipped with Changshu Switch's unique arc regulation technology. By precisely controlling the arc shape, the breaking speed is significantly increased by 40% and the arc energy is reduced by 60%. Combined with the fully self-developed system of core components (such as mechanisms, arc-extinguishing chambers, intelligent release, etc.), the product reliability far exceeds the industry average. The new energy product series covers high voltage levels of AC2000V and DC1500V, and has obtained multiple certifications both domestically and internationally. Its technical strength has won recognition from over 200 industry leaders such as Sungrow Power Supply, Huawei Technologies, Hopewind Electric, and Goldwind Science & Technology.

Breakthrough and upgrade, together towards a green future
As a leading "electrical system solution service provider" in China, Changshu Switchgear has acquired full lifecycle service capabilities spanning from "scheme design to product manufacturing and operation and maintenance services". In alignment with the continuous advancement of the national "dual carbon" goals, the company will persistently increase its R&D investment, with wind power, photovoltaics, energy storage, and hydrogen production as the core driving forces. It is committed to propelling the upgrading and iteration of new energy equipment towards higher voltage levels, greater intelligence, and lower carbon emissions. The company aims to collaborate with global partners to jointly embark on a path towards a green and sustainable future.