It is a three phase H.V switch equipment of 12KV 50Hz for breaking or closing load current. No-load transformer cable charging current and closing short-circuit current.The load switch with earth switch can bear short-circuit current.
It is made up of FN12-12D load switch and S□LAJ-12(XRNT□-10)H.V current.Jointly breaking any current between short-circuit current.Meantime.Fuse box make the switch off of with the striker.
It is used in the ring network city distribution and industrial equipment of 12KV and three-phase AC 50Hz to cortrol load and short-circuit.Because the switch with fuse protecting transformer etc more reliably than circuit breaker .It is especialy suitable for ring network clouble radial distribution and package substtion.
A、The ambient air temperatrue : Max:+40oC. Min:-25oC. B、The altitude ≤1000m. C、The relatire humidity of air Daily average ≤95% . Monthly average ≤90% D、The ambient air should not be obviously polluted by corrosivity or the flammability gas and geam.Etc. E、Without frequent shake. F、Enviroment degree : gradeⅡ. If requirements are not mentioed above, users can fix them with the manufacturer .
Mechanism mode : S by hand. D by motor. Rated dynamic staility current Rated current Earth switch Rated voltage Designed number Indoor AC H.V load switch