When the fuse is blown, the bottom grounding can effectively eliminate the residual charge on the transformer side, and ensure the personal safety when replacing the fuse。

The combination electric mechanism with quick breaking (tripping) function adopts single-spring double operating shaft design, built-in reliable closing, opening, ground limit interlock device to ensure that there is no obvious overshoot phenomenon。The mechanical life of the product is more than 10,000 times, the electrical components are pre-designed, and can be installed and maintained at any time。

Single spring double operation shaft design, built-in reliable closing, opening, grounding limit interlock device, to ensure that the closing and opening of the gate without obvious overshoot phenomenon。The mechanical life of the product is more than 10,000 times, the electrical components are pre-designed, and can be installed and maintained at any time。

The closing, opening and grounding of the load switch adopt three-station design, which is safe and reliable。Rotary blade + arc interrupter has good insulation performance and breaking performance。

Single spring double operation shaft design, built-in reliable closing, opening, grounding limit interlock device, to ensure that the closing and opening of the gate without obvious overshoot phenomenon。The mechanical life of the product is more than 10,000 times, the electrical components are pre-designed, and can be installed and maintained at any time。

Using CAM structure closing device, over stroke and full stroke size accurate, strong production compatibility。The insulated side panels are moulded by SMC for precise size and high insulation strength。The closing, opening and grounding of the isolation switch adopt three-station design, which is safe and reliable。

The precision transmission mechanism with reclossing function is connected by V-type key, and the shafting support of the transmission system adopts a large number of rolling bearing design schemes, with flexible rotation and high transmission efficiency, so as to ensure the mechanical life of the product more than 10,000 times, and the electrical components are pre-designed and can be installed and maintained at any time。

This mechanism is used for DW450 intelligent low-voltage universal air circuit breaker in China

This mechanism is used for domestic DW45 intelligent low pressure universal air Circuit breaker。On the basis of the original J45 mechanism, the operating mechanism has made a number of improvements and a large number of fine punching parts, which makes the product performance better and higher stability。The surface treatment is phosphating。