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When L21-30 just isn't big enough
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<blockquote data-quote="Tim Duffin" data-source="post: 24676" data-attributes="member: 400"><p>Re: When L21-30 just isn't big enough</p><p></p><p></p><p></p><p>You are talking about separating the 120V circuits into 4 cables instead of having the capability of using 240V from one cable. </p><p></p><p>The difference is that if you choose to run anything in your rack on 240V and 120V simultaneously, than you cannot do it with 4 530's. Also, you are using extra neutral wire, increasing weight. </p><p></p><p>Using a 240V/120V system, the triplen currents in the neutral are 120 degrees out of phase, giving you the option of running 2 simultaneous loads on a single neutral cable because they occur at different times. When you use all L530's, every individual neutral must carry all the current supplied by the hot.</p><p></p><p>If it was my system, I would use a california connector wired 208 three phase, not 240/120. That would get you 3 phases of 208 at 50A, but no 120v capability. I believe the number is different than cs6365/4.</p></blockquote><p></p>
[QUOTE="Tim Duffin, post: 24676, member: 400"] Re: When L21-30 just isn't big enough You are talking about separating the 120V circuits into 4 cables instead of having the capability of using 240V from one cable. The difference is that if you choose to run anything in your rack on 240V and 120V simultaneously, than you cannot do it with 4 530's. Also, you are using extra neutral wire, increasing weight. Using a 240V/120V system, the triplen currents in the neutral are 120 degrees out of phase, giving you the option of running 2 simultaneous loads on a single neutral cable because they occur at different times. When you use all L530's, every individual neutral must carry all the current supplied by the hot. If it was my system, I would use a california connector wired 208 three phase, not 240/120. That would get you 3 phases of 208 at 50A, but no 120v capability. I believe the number is different than cs6365/4. [/QUOTE]
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