Our company independently researched and developed the self-lock knife-switch disconnector. It is installed on the panel inside the cabinet, and its operation handle is a hook rod. The witch bases can be produced by mould pressing for high product consistency, integration and compactness. The switch is spring compressed. In the conductive contact area, the spring is compressed to exert contact force. After the contact point is slightly worn for long-time use, the spring can still maintain the initial contact pressure. The spring’s clamping force is accurate and even, thus ensure the products’ conductivity and the reliability. The knife-switch disconnector can be self-locked when being closed to prevent the train from the risk and harm that may cause by disconnection due to vibration. The knife-switch disconnector can be assembled either independently or as part of an integrated unit. The disconnector can be flexibly adjusted in numbers of switch circuits and the carrying capacity of each circuit as customer requested. The product has been serving as a sample for Chongqing Rail Transit Jiangtiao line.

Optional Parameters

Voltage range:  0~3000VDC

Current range:  0~3000A(multiple knives in parallel)