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FN16A Series Indoor Vacuum Load break Switch

FN16A indoor AC M.V Vacuum load break switch are developed by our company The products follow GB3804-90《3-62kV AC H.V load switch》and IEC62271《 AC H.V. indoor load break switch-fuse combinations》 (2002 edition). These switches are small volume, beautiful appearances, flexible installation, and easy operation. This switch applied for the 50/60Hz, 6-24kV Power distribution system. It can break on load current, and fuse combination can break the over load current and short circuit current. Load break switch with-fuse combinations are also used for protecting over load of transformer and avoiding short-circuit current.

parameters

Technical Information

Technical Specification
Rated voltage	kV	12	24
Rated current	A	630	630
Rated power frequency	Hz	50/60	50/60
Short circuit making capacity	kA Peak.	50	31.5
Peak withstand current	kA Peak.	50	50
Short time current	kA eff.
1Sec.		25
3Sec.		20	20
Max. breaking capacity in co-operation with fuses IEC 62271-105(IEC 420 1990-11)	A	2000	2000
Max. fuse current(XRNT Fuse)	A	200	200
Power frequency withstand voltage 50Hz 1 min,:
- To earth and between poles	kV	42	65
- Across isolating distance	kV	48	79
Impulse withstand voltage 1.2/50μ s:
- To earth and between poles	kV	75	125
- Across isolating distance	kV	85	145
Mechanism Endurance
-Vauum interrupter	cycles	10000	10000
-Main switch and Earth Switch	cycles	2000	2000

Overall and installation dimensions

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FN16A Series Indoor Vacuum Load break Switch