When purchasing a new resistance welding controller, most of us would rather check out the various features and schedules the new controllers offer rather than the silicon controlled rectifier or SCR contactor. The SCR is hardly the most interesting part, but it's undoubtedly the most important. Although those who service and keep SCR contactors operating have found them to be a bit of a nuisance because of the need for water to cool them and the resultant leaks that sometimes occur, still, SCR contactors are crucial, and it is necessary to fully understand their intricacies and peculiarities.
Click here to view IB 1158 SCR Contactors Vital to Resistance Welding Controllers
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