indoor vacuum circuit breaker

Indoor vacuum circuit breaker

1, Outline

The SC40306 - 12 vacuum circuits-breaker are 3 ~ 10kV, in the 50Hz three phase ac system indoors power distribution equipment, may supply in the industry and mining enterprise, the power plant, the transformer substation as the electric appliance equipment protection and the control using of, specially is suitable to the request does not have the oiling, the few overhauls and the frequent operation use place, the product may dispose in the center sets at in the cabinet, the double-decked cabinet, the fixed cabinet supposes spare as the control and the protection high pressure electricity. This product main characteristic is:

1. reliability high: Under the nominal current, allows to break the number of times to reach as high as 20,000 time. Under the fixed short-circuit current, experiments breaks number of times 50.
2. functions complete: But ideal Opens together resistance, Rong Xing, perceptual load.
3. few maintenances, usually only needs to hold the drive mechanism to do few sweeps clear or the lubrication.
4. has used the vertical insulation bushing, may defend each kind of environment the influence. Thus, circuit breaker suitable Yu Gezhong special environmental condition.
5. has the integrity the product series parameter: Its nominal current from 630A to 3150A; The rating short-circuits the drop-out current from 20kA to 50kA.
6. fixed short-circuits the pass to gather the electric current fixed (peak value), moves technical parameter standard and so on the steady state current is higher than the present country standing operating procedure. Front
7. products left the plant completely carry on the machinery based on the reliable principle to wear in experienced, guarantee product reliability.
8. products series nature, the versatility are good, user maintenance easy to operate. The product conforms to GB - 1,984, DL403 as well as the IEC standard 56 and the 694th publication and so on the present standing operating procedure.

3, The technical parameter (sees next table:)

4, External dimensions: (Sees attempts:)

Chart SC40306-12 indoors a.c. high voltage vacuum circuit-breaker outlook dimensional drawing

Please contact Ms.Amy YIN --- yinamy9@gmail [dot] com and sikeqd@126 [dot] com