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  1. K

    Help on non-universal contactor naming

    Could someone tell me: 1. What is that contactor symbol? closest I found is a mechanically interlocked relay. 2. What that naming, SHJ, imply? Is it an abbreviation of a certain language? The following rungs also contain ambiguous contact name; Specifically, HBJ, TBJ, TWJ, STJ, and HWJ. 3. What...

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