James West, technical support engineer for Interface technology and switching devices discusses one of the technical problems he regularly gets asked about.
As a technical support engineer, I get a lot of support enquiries requesting replacement relays. Most of these application problems could be avoided by using the correct type of relay.
Solenoids are a common method of controlling valves in an automated machine. They do not have a particularly high holding current, however they are often used in high frequency switching applications and it’s this factor which will cause any associated mechanical relay to eventually fail.
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