At ZHNYU ELECTRIC, the manufacturing of frame breakers (ACBs) is a testament to precision engineering and decades of accumulated expertise. Since our founding in 1992, we have refined our production processes to deliver frame breakers that not only meet but exceed international standards. Our factory, spanning 10,000+ square meters, is equipped with 100+ state-of-the-art production machines, including CNC winding machines, vacuum impregnation units, and automated testing rigs. Each frame breaker undergoes a multi-stage quality control process, from material inspection to final performance verification, ensuring 100% reliability. We utilize high-grade copper alloys for contacts and advanced thermoplastic housings that resist extreme temperatures, vibrations, and corrosive environments, making our breakers suitable for harsh industrial applications. Our production capacity allows us to deliver large orders with short lead times, supported by a rigorous yield rate of over 99%. We continuously invest in R&D, holding 50+ patents that enhance current-limiting technology, reducing let-through energy to minimize equipment damage. In addition, our commitment to sustainability is reflected in our compliance with RoHS directives, using lead-free components. Our frame breakers are tested to perform at altitudes up to 2,000 meters and in temperatures ranging from -25°C to +60°C, ensuring reliability in diverse climates. For over 34 years, we have supplied frame breakers to more than 60 countries, including major projects in the EU, North America, and Asia-Pacific. One operational highlight includes a two-year collaboration with a utility company in Dubai, where our breakers withstood sandstorm dust ingress and extreme heat, maintaining a 99.99% operational availability.