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Generic class AC vacuum contactor

帝皇彩票开奖The generic class AC vacuum contactor is generally used in starting & breaking during operation(AC-3)of cage induction motors and(or) starting, reverse braking or reverse motion and inching (AC-4) of cage induction motors。 According to specific circumstances, it can also be used downstream in starting & breaking (AC-2) of wound rotor type induction motors, it can also be used in non-inductive or micro-inductive load and electric resistance furnace (AC - 1)。However, it is generally not recommended to use it in make-and-break of the transformers(AC-6a)and capacitor sets(AC-6b)。Our company has otherwise the dedicated vacuum contactors used in the two kinds of loads, please refer to the contactors with special purposes。 Business negotiations are welcome。

The vacuum contactor is generally designated to be used indoors, the general environmental conditions are as follows:

● Ambient temperature: The ambient air temperature should be no more than 40 ℃, in addition, the average temperature within 24 hours should be no more than 35 ℃, the ambient air temperature should be no less than-15 ℃.

● Height above sea level: As for altitude of the installation place。 For low voltage type of switching elements and low-voltage in components among the high voltage switch components, it does not exceed 2000m, For high-voltage switch element it does not exceed 1000 m。

● Relative humidity: Relative humidity of the atmosphere does not exceed 50% at + 40℃ of the ambient air temperature。 Under lower temperatures, a higher relative humidity is permitted, The daily average is no more than 95%。 When in the wettest month, an average temperature is + 20 ℃。 The mean monthly maximum relative humidity is 90%。 Condensation due to temperature change occurred on the surface of products has been considered。

● Work environment: Free of rain and snow invasion, fire & explosion hazard, chemical corrosion and strong vibration.

● Level of contamination: level III, with conductive pollution, Or the dry non-conductive pollution becomes conductive pollution due to condensation.

If you need a special usage environment, please contact us!

 

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Address:No. 23, A District, Qiancun Industrial Park Area, Wuxi District
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