33KV SF6 Gas Load Break Switch

These load break switch 33kvare intended for outdoor applications. They can be mounted either horizontally or vertically, and are suitable for electrical operation and power distribution. These 33kv load break switch are tested by our quality controllers on various parameters before delivering them to our valued customer ends. We manufacture these switches with the help of cutting edge technology, which allows us to deliver a flawless product that is sure to be flawless as well. The 33 kV live parts are not directly touchable and hence guarantee protection from hazards.

33kv Load Break Switch Application

The 33kv pole mounted switch is made of a proven rugged, corrosion-resistant material (304L stainless steel plate for warships), ensuring a long service life (30 years) and a range of operations, with the characteristics ideal for on-column equipment.

33kv Load Break SwitchTechnical Parameters

Products Type


Basic Ratings

Maximum System Voltage


Rated Continuous Current


Rated Frequency


Short Time Withstand Current


Making and Breaking Capacity

Mainly Active Load Current


Number of Load-break Operations


Short-circuit Making Current (peak)


Number of Making Operations

5 times

Cable Charging Current


Line Charging Current

Closed Loop Circuit Current


Transformer Magnetizing Current


Power Frequency Withstand Current Test

Wet Condition-10sec Ph- Ph-Eth, Across Interrupters


DryCondition-1min,Ph- Ph, Phase to Earth


Dry Condition - 1 min Across Interrupter


Impulse Withstand Current Test( 1.2 x 50 µs )

Phase to Phase, Phase to Earth


Across Interrupter


Other Ratings & Specifications

Internal Arc Test

20kA /0.1 sec

Arc Extinction Medium

SF6 Gas

Insulation Medium

SF6 Gas

Creepage Distance (Porcelain)


Creepage Distance (Silicon)


Dry arcing distance

IP Level


Operation Performance

Closing/Opening Time


Mechanical Operations (Guaranteed)


Operating Temperature (*Manual Type)


Gas Pressure

Nominal Pressure (MPa, at 20°C)

Bursting Pressure (MPa)

  1. ~0.6

Minimum Gas Pressure (MPa)

Leakage Rate (cc/ sec)


Voltage sensors

CT ABC 10P10 5VA


Incoming side and outgoing side of the voltage sensor

6 Voltage sensor(built-in)

Phase voltage:(24(36)kV/√3)/(3.25V/√3)

Special attention should be paid to the voltage sensor, which must be directly fed by the 33KVload break interrupter switch.

No additional adjustment circuit can be added to the controller. The voltage signal of the 33kv load break switch into the test line needs to be tested separately.

Gopower is a professional electric power equipment company, we provide auto recloser, SF6 load break switchand etc. For more info, please feel free to contact us!

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