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3 phase mains disconnector
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<blockquote data-quote="Mell" data-source="post: 508143" data-attributes="member: 33286"><p>Hi everyone just a general question I came across a 3 phase board at a university and it was running 12 stage lighting dimmer packs 3 phase all on 32a 3 pole mcbs and 2 circuits on 64a mcbs, my question is if the dimmer packs was to pull 30a each the mcbs would be fine but would the 100a main switch start glowing due to the excessive amperage pulled through it, I've noticed this on single phase boards and often thought the amount of amps that could potentially be pulled without exceeding their individual breakers is more than the isolation switch.</p></blockquote><p></p>
[QUOTE="Mell, post: 508143, member: 33286"] Hi everyone just a general question I came across a 3 phase board at a university and it was running 12 stage lighting dimmer packs 3 phase all on 32a 3 pole mcbs and 2 circuits on 64a mcbs, my question is if the dimmer packs was to pull 30a each the mcbs would be fine but would the 100a main switch start glowing due to the excessive amperage pulled through it, I've noticed this on single phase boards and often thought the amount of amps that could potentially be pulled without exceeding their individual breakers is more than the isolation switch. [/QUOTE]
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