MCCB Cascading and Back-up Protection Explained
How current-limiting upstream MCCBs let downstream breakers use a lower breaking capacity via IEC 60947-2 cascading, and where it trades off against discrimination.
9 min read
Technical
Cascading guides
Guides and notes on industrial electrical and automation parts: selection, wiring, settings and ordering.
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MCB Cascading and Back-up Protection
Cascading lets an upstream current-limiting device reduce let-through energy so a downstream MCB can be applied above its own rated breaking capacity, provided the pairing is a manufacturer-verified combination.
10 min read
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