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Vacuum Load Switch

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FZN25/FZRN25-12D indoor vacuum load switch
  Detailed introduction

1.Product Introduction

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 substation.


a. GB3804-90 <<3-63KV AC H.V load switch>>.
b. GB16926-1997 <>(eqv, IEC62271-2002).
c. GB1995-89 <>.

2.Operating environmental conditions

(1).Altitude: ≤1000m

(2).ambient air temperature: not higher than +40°C,not lower than-25°C

(3).Relative humidity: daily mean is not more than 95%, monthly mean is not more than 90%

(4).Earthquake intensity: not more than 8°

(5).no fire, explosion hazard, chemical etching and intense vibration

(6).Pollution grade: II

(7). Ambient air shouldn't be polluted by corrosive or flammable gas and vapor.

   The previous:FKRN12-12 indoor pneumatic load switch
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