brass contacts?

[dave11282]

Hi all,

we use a design where we have open face brass contacts for level switching control in a shaft, we now want to make our product suitable for external use,

my concern is the possible reaction of this material and rain water, the brass switch plates/plunger carry 24v dc,

are there any possible electrolysis effects too?

thanks

Dave

 

[SMF1964]

24V DC - what is the amperage? You will get some tarnishing of the brass in atmospheric conditions and if the current flow is right (actually, if it is wrong) you can get some corrosion induced by the flow of electricity.

By 'electrolysis' are you talking about the breakdown of water into hydrogen and oxygen or are you referring to the damage mechanism where an electric arc or spark discharge produces surface damage to the metal, effectively wearing away the contact surface.