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Electrical Inspection & Testing Forum
What size is this breaker
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<blockquote data-quote="Marvo" data-source="post: 479041" data-attributes="member: 20838"><p>Unless the manufacturer specifically states you can do this then no, you can't I'm afraid.</p><p></p><p>Most s/pole MCB's don't have a sufficiently strong mechanical mechanism to cause all three that are linked across the toggles to trip. You just get the phase with the fault tripping even though its lever stays in the up position and the other two phases remain connected which can cause a variety of problems... often expensive ones.</p></blockquote><p></p>
[QUOTE="Marvo, post: 479041, member: 20838"] Unless the manufacturer specifically states you can do this then no, you can't I'm afraid. Most s/pole MCB's don't have a sufficiently strong mechanical mechanism to cause all three that are linked across the toggles to trip. You just get the phase with the fault tripping even though its lever stays in the up position and the other two phases remain connected which can cause a variety of problems... often expensive ones. [/QUOTE]
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What size is this breaker
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