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mccb as main switch
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<blockquote data-quote="sparkytim" data-source="post: 122532" data-attributes="member: 8627"><p>Why is the MCCB fitted?</p><p></p><p>If at the origin then Max Zs value not required as the supply Fuse provides adequate protection for the tails and your outgoing MCBs provide protection for each circuit</p><p></p><p>If it at the end of a Distribution circuit then the supply end protective device protects the circuit.</p><p></p><p>Or perhaps you mean PFC value for the device? this should be marked on it.</p></blockquote><p></p>
[QUOTE="sparkytim, post: 122532, member: 8627"] Why is the MCCB fitted? If at the origin then Max Zs value not required as the supply Fuse provides adequate protection for the tails and your outgoing MCBs provide protection for each circuit If it at the end of a Distribution circuit then the supply end protective device protects the circuit. Or perhaps you mean PFC value for the device? this should be marked on it. [/QUOTE]
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