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	Zhejiang Xikai Electric Co. , Ltd.

      





      
    
      
        
        
        
		
        
        
        
		
		
		
		
      
			
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      Zhejiang Xikai Electric Co. , Ltd.
      
				Mailbox：wzxikai@wzxikai.com
      
				Tel：+86 577 61666 016
      
				address：No.271, Weishiqi Road, Yueqing Economic Development Insuatrial Zone, Yueqing, Zhejiang.			
      
		
      
        
	
      
	
	

	
      
		
      
			product list
			
		
      
				
       
      Indoor high voltage load switch
      
				
       
      14/5000  Indoor vacuum circuit breaker
      
				
       
      Outdoor vacuum circuit breaker
      
				
       
        Outdoor high voltage load switch
      
				
       
      Outdoor high voltage disconnector
      
				
       
        Outdoor drop fuse
      
				
       
        High voltage current limiting fuse series
      
				
       
      High voltage complete set
      
			
      
	
	
	
	
	
      
        
      
            
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        • FZN21 Series Indoor Vacuum Load Break Switch
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        FZN21 Series Indoor Vacuum Load Break Switch
        
				
        
			
        
			
			
        
				
        FZN21 series indoor M.V. Vacuum load break switch and its fuse combination are applied for 12kV, 24kV and 40.5kV, 50/60Hz power systems. It widely use for industrial and mining area, to cooperate for Ring Main Units and Terminals. It can distribute, control and protect the electric power. This product fulfill with the requirements of following standards:IEC 60265-1/FDIS,IEC 60420 , GB16926 , GB3804 .

This model of switch was combined with frame, isolator, Vacuum interrupter, earth switch, spring mechanism. It has good breaking capacity, safety, and long electrical endurance. This model can break on load current, over load current, and after cooperate with XRNT fuse, that can break short circuit current and protect the equipment work under loss phase. There are visible fracture. There is interlock between isolator, V-LBS and ES, which can forbidden mis-operation.
        
			
        
			
			
			
        
				
        Technical Information 
        Technical Specification
         
         
         
         
        Rated voltage
        kV
        12
        24
        40.5
        Rated current
        A
        630
        630
        630
        Rated power frequency
        Hz
        50/60
        50/60
        50/60
        Short circuit making capacity
        kA Peak.
        50
        31.5
        31.5
        Peak withstand current
        kA Peak.
        50
        50
        50
        Short time current
        kA eff.
         
         
         
        1Sec.
         
        25
         
         
        3Sec.
         
        20
        20
        20
        Max. breaking capacity in co-operation with fuses IEC 62271-105(IEC 420 1990-11)
        A
        2000
        2000
        1700
        Max. fuse current(XRNT Fuse)
        A
        200
        200
        100
        Power frequency withstand voltage 50Hz 1 min,:
         
         
         
         
        - To earth and between poles
        kV
        42
        65
        95
        - Across isolating distance
        kV
        48
        79
        110
        Impulse withstand voltage 1.2/50μ s:
         
         
         
         
        - To earth and between poles
        kV
        75
        125
        185
        - Across isolating distance
        kV
        85
        145
        215
        Mechanism Endurance
         
         
         
         
        -Vauum interrupter
        cycles
        10000
        10000
        10000
        -Main switch and Earth Switch
        cycles
        2000
        2000
        2000

                  
        Overall and installation dimensions
         
        
			
        
		
        
		
	
        
	

        




















        
	

        













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