DFWK-12 Cable Branch Box
Overview
The DFWK-12 cable branch box adopts prefabricated touchable live silicone rubber cable terminals. It is fully sealed, fully insulated, maintenance-free, and ensures personal safety. The compact structure and aesthetically pleasing appearance, along with a double-layer stainless steel enclosure, provide a service life of over 20 years. The device enables localized power outages for maintenance without affecting the main grid operation, thereby minimizing outage areas. It can be equipped with one or multiple SF₆ load break switches, supporting flexible wiring schemes with up to eight outgoing branch circuits. Optional configurations include surge arresters, fault indicators, current-limiting fuses, and more, to meet various user requirements.
Model Designation
Cable branch box with switch
Number of incoming circuits
Number of outgoing circuits
Number of branch circuits
Branch circuits with switches
Number of branch circuit switches (can be omitted for single switch)
Main Technical Parameters
Rated voltage: 12kV
Rated current: 630A
Power frequency withstand voltage (phase to ground): 42kV/1min
Lightning impulse withstand voltage: 75kV
Rated breaking current: 630A
Rated short-circuit making current (peak): 50kA
Rated short-time withstand current: 25kA/4s
Rated peak withstand current: 50kA
Rated capacitive breaking current: 45A
Rated inductive breaking current: 16A
Full load breaking operations: >100 times
Mechanical operating life (open/close operations): 2000 times
