The MDmaxsT series low-voltage switchgear is a high-end drawer-type distribution equipment developed by Zhongtongfu with official authorization from ABB. Since obtaining the brand license in 2015, the company has fully mastered the core technologies, established production lines, and acquired capabilities for independent R&D, large-scale manufacturing, and standalone delivery, establishing it as a benchmark product in the industrial-grade power distribution sector. The entire unit employs a double-folded G-shaped profile self-supporting frame that combines lightweight construction with high strength. The cabinet supports flexible configurations including fixed, partitioned, and drawer-type designs; its modular electrical and mechanical components adhere to industry standards, featuring a compact and flexible layout with significantly higher space utilization compared to traditional cabinets.
This product strictly complies with authoritative domestic and international standards such as IEC 61439-1/2, GB/T 7251.12, and JB/T 9661, and has successfully passed a comprehensive range of rigorous extreme tests including national full-type testing (TTA), earthquake resistance, internal combustion arc, high-altitude performance, salt spray, and EMC (Electromagnetic Compatibility). It has also obtained major global certifications such as China’s CCC, the EU’s CE, the US’s UL, CB, and EAC, enabling seamless entry into international markets. The core functionality integrates four intelligent remote control capabilities: remote operation, remote signaling, remote measurement, and remote adjustment. The electrical protection design is thorough, with functional units independently separated. When drawers switch between three operational positions—connection, testing, and separation—the protection level remains unchanged, ensuring operator safety at the structural level.