Risentric - Model MDmax ST -Low-Voltage Switchgear

The system adopts a standardized and modular architecture and integrates ABB high-performance circuit breakers, intelligent monitoring functions, and communication interfaces into a compact low-voltage power distribution and control assembly. This design enables flexible configuration, simplified installation, and efficient system expansion to suit different project requirements.

Manufactured and assembled by Risentric in accordance with applicable standards, MDmax ST combines proven ABB technology with Risentric’s engineering integration, customization capability, and quality control, ensuring reliable electrical performance and robust mechanical construction.

The switchgear supports remote monitoring, programmable operation, and intelligent operation and maintenance, and is suitable for a wide range of applications, including industrial plants, commercial buildings, and data centers, providing safe, efficient, and scalable low-voltage power distribution solutions.

Standards Compliance

MDmax ST low-voltage switchgear, integrated and assembled by Risentric, complies with GB/T 7251.2-2023, which is harmonized with IEC 61439-2 for low-voltage switchgear and controlgear assemblies, ensuring reliable performance, safety, and applicability in industrial and commercial power distribution systems.

• Standardized modular architecture
  Adopts a standardized modular design with a compact internal layout, enabling flexible installation, convenient system expansion, and efficient maintenance to accommodate different project requirements.
• High short-circuit withstand capability
  The main busbar system is designed to withstand short-time currents up to 80 kA, while the distribution busbar in the control cabinet supports up to 50 kA, making the system suitable for applications with high short-circuit levels.
• Intelligent monitoring and digital power distribution
  Supports intelligent monitoring, remote communication, and control functions, enabling digital management, real-time status monitoring, and improved operation and maintenance efficiency of the power distribution system.
• Reliable enclosure protection
  Features an enclosure with IP40 degree of protection, providing effective protection against dust ingress and accidental contact with live parts, ensuring operational safety.
• Certified compliance with applicable standards
  Tested and certified in accordance with national CQC certification requirements and complies with GB/T 7251.2-2023, ensuring stable electrical performance, mechanical reliability, and long-term operational safety.
• Wide current rating range
  Supports a main busbar rated current range of 1600 A to 4000 A, and a control cabinet distribution busbar rated current range of 400 A to 1500 A, allowing adaptation to a wide variety of load capacities and application scenarios.

• Applicable standard: IEC 61439-1 / IEC 61439-2 (equivalent to GB/T 7251.2-2023)
• Rated operational voltage (Ue): AC 400 V
• Rated current (In): 630/ 1600/ 4000/ 6300 A
• Short-circuit withstand: Icw: 20/ 30/ 80/ 100 kA , 1 s
• Ipk: 40/ 63/ 176/ 220 kA
• Degree of protection: IP40 (IP54 optional)