Transcription of Cascading and Selectivity - NHP
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Version NHP Electrical Engineering Products AU 1300 NHP NHP NZ 0800 NHP NHP Cascading and Selectivity Moulded Case circuit Breakers Tables TECH DATA 2 TemBreak PRO TBP-TD-002-EN Summary of Changes This section highlights the details of changes made since the previous issue of this document. The versioning convention used to track changes in this document follows the structure where: x: Major revision, where extensive changes are made which is generally incompatible with the previous version. Such changes may include new products and/or features, or removal of information which is no longer relevant or applicable to the previous version y: Minor revision, where changes made do not change the overall scope of the previous version, but may include additional information which complements or corrects the previous version, or provides additional clarity on an existing topic.
Cascading refers to a design verified combination of circuit breakers where, both breakers have been verified to work safely in short circuit level higher than the downstream I cu ratings. Whenever there is a dash "-" this means the combination can be safely used ONLY up to the lower I cu rating of both devices. MCCB to MCB Upstream MCCBs ZS125M TF
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