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How to define a qualified Solenoid Switch

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Update time : 2017-01-20 17:11:52
How to define a qualified Solenoid Switch

Solenoid Switch works under the temperature of -40ºC to 105ºC and relative humidity below 96%.  Its rated working time is 30 seconds. And the nut is stationary and all material should not contain asbestos, cadmium, not contain mercury, lead, hexavalent chromium.

A qualified solenoid switch must be passed through 96 hours salt spray test, and the resistance value of two main contacts is not over 1mΩ when the electric current go through the main contact is 200A. And the roughness of iron core surface must be guaranteed that its flexibly works and does not seize up.