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CNC Electric Group Co., Ltd.

Load Switch, Switch, High Voltage Load Switch manufacturer / supplier in China, offering Gn30-12 Porcelain Isolating Switch, Drop out Fuse (PRW1-24), Double-Winding Non-Excitation Tap-Changing Oil Immersed Distribution Transformer of 6~10V and so on.

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Gn30-12 Porcelain Isolating Switch

FOB Price: US $11-100 / SET
Min. Order: 500 SET
Min. Order FOB Price
500 SET US $11-100/ SET
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Port: Ningbo, China
Production Capacity: 2000PCS/Day
Payment Terms: L/C, T/T, D/P

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Basic Info
  • Model NO.: GN30-12
  • Pole: 3
  • Trademark: CNC
  • Origin: China
  • Function: Protect Package Substation and Transformer
  • Rated Continuous Current: 630
  • Transport Package: Standard Export Packing
Product Description
Gn30-12 Porcelain Isolating Switch
1. Rated voltage: 10KV
2. Frequency: 50Hz
3. Function: Compact, small footprint, strong insulating ability, easy to install
GN30-12 type rotary indoor high voltage isolating switch is a new type of touch rotating knife type isolating switch,
The main structure in three-phase chassis of the upper and lower two plane, fixed two set of insulator and contact,
By rotating contactor, so as to realize the switch of switching.
GN30-12D type switch is on the basis of GN30-12 switch increases with the form of earthing knife, can meet the
Needs of different power systems. This product design is compact, small footprint, insulating ability is strong, easy
To install, the performance meet GB198589 "ac high voltage isolating switch and earth switch" requirements,
Applicable to rated voltage 10 KV AC 50 HZ and the following indoor systems, as in the cases with voltage without
Load, for opening and closing current. Can be used with high voltage switch cabinet, and also can be used alone.
The use of environmental conditions
1. No more than altitude of 1000 meters.
2. Ambient air temperature: From -25° C to +40° C.
3. Air relative humidity: Daily average no greater than 95%; Monthly average no greater than 90%.
4. Amplitude: Seismic intensity not exceed degree 8.
5. Installation place: No fire, explosion, chemical corrosion and sharp shakes.
Type and meaning

Main technical parameter

Outline and mounting size
1Rated voltageKV12
2Rated frequencyHz50
3Rated currentA630
4Rated closed switch-off currentA630
5Rated power load switch-off currentA630
65% rated power load switch-off currentA31.5
7Rated cable charging switch-off currentA10
8Rated no-load transformer switch-off current 1250KVA Transformer no-load current
9Rated short-circuit controlly currentKA50
10Rated short-circuit peak withstand currentKA50
114S rated heat-circuit peak withstand currentKA20
12Rated transfer currentA3150
131min power frequency withstand voltageKA42
14Lighting impulse resisting voltage(peak)KA75
15Mechanical lifestime1000
Technical parameter
1Contact distancemm8+1
2Contact ultra travelmm3±1
3Three-phase on-an-off not the same periodms≤2
4Switch-on contact jump timems≤2
5Switch-on speedm/s0.6±0.2
6Switch-off speedm/s1±0.2
7Main circuit resistanceμΩ<150
8Switch-off times>0.06
9Interphase distancemm210±0.2
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Mr. Mark Ma
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