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GW4-12/40.5D(W) Outdoor HV Disconnect Switch
GW4-12/40.5D(W) Outdoor HV Disconnect Switch

GW4-12/40.5 outdoor high voltage disconnect switch is used to open and close high voltage circuit in rated voltage 12/40.5kV, AC 50/60Hz system, the anti-pollution type is especial suitable for serious pollution area.

Ambient conditions
1. Altitude:≤3000m;
2. Ambient temperature:-25~+40℃ ;
3. Wind speed:≤35m/s;
4. Earthquake intensity:≤8 grade;
5. Ice thickness:≤10mm;
6. Anti-pollution type is special suitable for serious pollution area;
7.Applicable occasions should free from inflammable, explosives and severe vibration.


Technical specification
Item Unit Data Note
Rated voltage kV 12/40.5
Rated current A 630 1250
Rated peak withstand current kA 50 80
4s short-time withstand current 20 31.5
Rated static pull on connection terminal N 735
Rated power frequency Hz 50/60
1min power frequency withstand voltage kV Phase to phase, phase to earth: 185/275 Suitable for three
pole linkage
across open contacts: 210/315
Lightning impulse withstand voltage(peak) kV Phase to phase, phase to earth: 450/650
across open contacts: 520/750
Suitable for three
pole linkage
Weight of switchbody kg ≈240
Operating mechanism CS14 manual
Earth method Without earth, single earth, double earth
Post insulate creepage distance mm Normal type: 1870 anti-pollution: 3050
With earth switch Short-time withstand current kA 12.5(2s) 20(2s)
Peakwithstand current 31.5 50

Disconnect switch is contain of frame, post insulator, conductive part, with earth and operating mechanism etc, earth blade is mounted with rotating shaft, static contactor is mounted on the bar, there is a mechanism linkage to ensure operating ordinally, one set Cs14 handle operating mechanical for no earth switch, two sets for singte earth switch, three sets for double earth switch.

Outline and installation dimension

1  Vacuum Circuit Breaker Series
2  Outdoor Load Break Switch Series
3  Intelligent Automation Equipment For Power Grid
4  Outdoor AC High Voltage Disconnect Switdh Series
5  Indoor Load Break Switch Series
6  Indoor AC High Voltage Disconnect Switch Series
7  Insulator Series
8  Drop-out Type Fuse Series
9  Arresters
10  hot stick/insulated rod/operating rod
11  Ground set/earth rod equipment
12  ground wire,grounding clamp
13  copper rod /brass rod
14  electroscope/ detector
15  lineman safety belt
16  pole climber
17  safety shoes boots ,hand gloves,carpet, mask
18  safety helmet
19  cable wire grip
20  fiber ledder , meter seal
21  hydraulic and electric crimping tool
22  Guy guard
23  snatch block
24  discharge rod lighten rod
25  cable cutter
26  puller and hand winch
27  crimping pliers and press pliers
28  Ungrouped
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Tel: 0086-577-62890982  Fax: 0086-577-62890992  E-mail:hongxiu4@gmail.com  Add: Fangdouyan zone, Liushi, Yueqing City, Zhejiang, China. 325600