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  • GN27-405 Indoor AC Three-pole Load-break disconnecting switches
  • GN27-405 Indoor AC Three-pole Load-break disconnecting switches

GN27-405 Indoor AC Three-pole Load-break disconnecting switches

Description:

GN27-40.5 indoor AC high voltage disconnect switch is an indoor electric apparatus used in rated voltage 40.5kV, three-phase AC 50/60Hz system.

  • Product Description

GN27-40.5 Indoor AC High Voltage Disconnect Switch

Model

GN27-40.5

Summary
GN27-40.5 indoor AC high voltage disconnect switch is an indoor electric apparatus used in rated voltage 40.5kV, three-phase AC 50/60Hz system.

Ambient condition
1. Altitude: ≤1000m;
2. Ambient temperature: -25℃~+40℃;
3. Relative humidity: daily average ≤95%, monthly average ≤90%;
4. Earthquake intensity: ≤8 degree;
5. Applicable occasions should free from inflammables, explosives, corrosives and severe vibration.

Product feature
1. Scientific design and innovative structure.
2. Multi contacts, rotary contacting, auto-cleaning capacity and effective cooling.
3. Contacting points distribute on two planes, small operating moment and good pressure withstand capability, as well as easy
of adjustment.
4. Applicable when creepage distance, insulating capacity and withstand voltage are all on the highest level.

Technical specification

Model Rated voltage(kV) Rated current(A) Rated short-time withstand current(4s) Rated peak withstand current(kA) Lightning impulse withstand voltage 1min. PF withstand voltage
          Phase to phase phase to earth Across open contacts Phase to phase
phase to earth
Across open
contacts
          (kV) (kV)
GN27-40.5/630-20 40.5 630 20/4s 50 185 215 95 115
GN27-40.5/1250-31.5 40.5 1250 31.5/4s 80 185 215 95 115

 

Diagram 1 GN27 40.5 Indoor high voltage disconnect switch

Diagram 1 GN27 40.5 Indoor high voltage disconnect switch

 

Diagram 2 Connecting terminal

Diagram 2 Connecting terminal

Product model A B C
GN27-40.5/630-20 543 781 940
GN27-40.5/1250-31.5 544 788 950
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