KYN61-40.5 Switch Cabinet

The KYN61-40.5 Switch Cabinet serves as a vital outgoing unit in 35kV high-voltage distribution networks. It safely channels power from upstream sources to high-voltage loads, motors, substations, and renewable energy connections. Combining switching, protection, monitoring, and communication features in one armored, withdrawable AC metal-enclosed unit, it ensures accurate and reliable power distribution in critical industrial and utility applications.

The cabinet employs a proven withdrawable truck design, enabling circuit breaker and instrument modules to be removed individually for maintenance without interrupting the entire system. Integrated protection functions cover short-circuit, overload, ground fault, and over/under-voltage scenarios, allowing rapid and precise fault isolation. Advanced insulation and a sealed enclosure support stable operation across a wide range of temperatures and humidity levels, while preventing dust ingress and condensation.

Standards: IEC 62271-200, GB 3906-2006, DL/T 404-2017
Rated Voltage: 40.5 kV
Rated Current: 1250A, 1600A, 2000A
Short-Time Withstand Current: 25kA/4s, 31.5kA/4s
Peak Withstand Current: 63kA, 80kA
Insulation Level: 95kV (power frequency), 185kV (impulse)
Protection Level: IP40

Constructed from 2.0 mm cold-rolled steel with a reinforced welded frame, the cabinet offers strong mechanical stability and vibration resistance. Compartments are clearly separated for safe and organized wiring, while high-density sealing ensures protection against dust and moisture. The standard "five-prevention" interlocking system adds an extra layer of operational safety. Its modular truck units are fully interchangeable, reducing downtime and maintenance costs. Each KYN61-40.5 Switch Cabinet is delivered with comprehensive support, including factory testing, installation guidance, commissioning, and ongoing technical assistance.