Fkn12-12/630/Fzn25-12 Load Switch Disconnector 3 Phase Isolation Switch Load Break Switch /Load Break Switch/ (LBS) Breaker

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  • Overview
  • Product Description
  • Detailed Photos
  • Product Parameters
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Overview

Basic Info.

Model NO.
FKN12-12/630
Earthing Method
Direct Earthing Method
Material
Galvanized Copper
Symbol
Fkn12 3 Poles
Certification
CCC, ISO9001, ROHS
Size
Meidum
Brand
Mingzhe
Operation
Manual /Mortor Operating
Rated Voltage
12kv 24kv 40.5kv
Rated Current
630A
Switch Type
Earthing Switch with Fuse Tubes
Switch Name
Load Break
Transport Package
Carton
Specification
600x900x2000
Trademark
MINGZHE
Origin
China
HS Code
8535210000
Production Capacity
2000PCS/Week

Product Description

Product Description

Application
FKN12 load break switch 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.
Standard
a. GB3804-90 <<3-63KV AC H.V load switch>>.
b. GB16926-1997 <>(eqv, IEC62271-2002).
c. GB1995-89 <>.

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.

(Note:Spring operating mechanism has electric and manual types)

Fkn12-12/630/Fzn25-12 Load Switch Disconnector 3 Phase Isolation Switch Load Break Switch /Load Break Switch/ (LBS) Breaker

Detailed Photos

Fkn12-12/630/Fzn25-12 Load Switch Disconnector 3 Phase Isolation Switch Load Break Switch /Load Break Switch/ (LBS) Breaker

 

Fkn12-12/630/Fzn25-12 Load Switch Disconnector 3 Phase Isolation Switch Load Break Switch /Load Break Switch/ (LBS) Breaker
Fkn12-12/630/Fzn25-12 Load Switch Disconnector 3 Phase Isolation Switch Load Break Switch /Load Break Switch/ (LBS) Breaker


 

Product Parameters
NO. Items Unit Data
FKN12-12D/630 FKN12-12(R)D/630
1 Rated voltage KV 12
2 Rated frequency Hz 50
3 Rated Current A 630 1250
4 Lightning impulse withstand voltage KV To earth and phase to phase 75, isolation fracture 85
5 1 min power frequency withstand voltage KA To earth and phase to phase 42, isolation fracture 48
6 Rated thermal stability current KA 20(4s)
7 Rated dynamic current KA 50
8 Rated dosing current (peak) KA 50 50
9 Rated short circuit breaking current (Expected value) KA   31.5
10 Maximum at critical breaking current A2S According to the fuse characteristic curve
11 Minimum breaking current KA According to the fuse characteristic curve
12 Rated transfer current KA   1.5
13 Maximum breaking current (reference value) KA 1.8
14 Breaking the capacity of the no-load transformer KVA 1250
15 Rated cable charging current A 10
16 Rated active load current breaking times Times >100
17 The impactor touches the load switch opening time S   >0.06
18 Earthing switch thermal stability current KA 20(2S)
19 Earthing switch thermal stability current (peak) KA 50
20 Motor operating power supply voltage V AC DC 110, 220

Mechanism parameters:
No. Name Unit Data
1 Fracture from mm >175
 
2 Phase center distance mm 210±2
 
3 Interphase air gap mm > 125
 
4 Trip mm 210
5 Over Trip mm >40
 
6 Three-phase closing is not the same period ms <10
 
7 Three-phase opening is not the same period ms <5
 
8 The inherent opening time of divider exciter ms 40-65
 
9 Main circuit resistance <300

The Fuse Rated current depend on the Transformer capacity for FKRN12A-12D Load break-Fuse combination
Transformer capacity(kva) 100 125 160 200 250 300/315 400 500 630 750/800 1000 1250
Fuse Rated current(A) 16 16 16 20 25 31.5 40 50 63 80 80/100 100/125


Optional accessories
Optional accessories
 
Main parameters
Electrically operated mechanism
Switch can be operated remotely with electric operation mechanism to control opening and closing.
Rated Voltage:AC220V,DC220V,DC48V,DC24V
Rated current:0.8A,  3.6A, 7.2A
Rated Watts:120w
Storage time:2-4s
Working time:2s/1min
Shunt  Trip Rated current:AC220V
Internal resistance:32Ω
Over current trip 5A
Auxiliary contact
Both for load break and earthing switch
Maximum voltage withstand value :Ac500V
Maximum permissible current value :5A
Auxiliary contact:
two open and one closed,
two open and two closed,
Three open three closed,
four open four closed
 
Interlocking between switchgear
This series of load switches can be interlocked between cabinets with special interlocking
 
Load switches with interlocking if one of the
switches breaks, The other switch closes automatically, and the interlocking cannot be removed after closing.
 


Install drawing
Fkn12-12/630/Fzn25-12 Load Switch Disconnector 3 Phase Isolation Switch Load Break Switch /Load Break Switch/ (LBS) Breaker Fkn12-12/630/Fzn25-12 Load Switch Disconnector 3 Phase Isolation Switch Load Break Switch /Load Break Switch/ (LBS) Breaker Fkn12-12/630/Fzn25-12 Load Switch Disconnector 3 Phase Isolation Switch Load Break Switch /Load Break Switch/ (LBS) Breaker Fkn12-12/630/Fzn25-12 Load Switch Disconnector 3 Phase Isolation Switch Load Break Switch /Load Break Switch/ (LBS) Breaker Fkn12-12/630/Fzn25-12 Load Switch Disconnector 3 Phase Isolation Switch Load Break Switch /Load Break Switch/ (LBS) Breaker Fkn12-12/630/Fzn25-12 Load Switch Disconnector 3 Phase Isolation Switch Load Break Switch /Load Break Switch/ (LBS) Breaker
Our Advantages

 

Fkn12-12/630/Fzn25-12 Load Switch Disconnector 3 Phase Isolation Switch Load Break Switch /Load Break Switch/ (LBS) Breaker

 
Company Profile

 

 

 

 

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