The CD17 series is primarily suitable for the ZN28-12 series of handcart-type indoor high-voltage vacuum circuit breakers and can also be used for other frequently operated circuit breakers.
The CD17A series is mainly applicable for various fixed switchgear cabinets and is used in conjunction with the ZN28A-12 split-type indoor high-voltage vacuum circuit breakers.
Both of the above series use DC power sources. When paired with indoor vacuum circuit breakers, they enable electric closing and opening,
manual tripping, remote tripping, and automatic reclosing operations, and feature free-release functionality.