Miniature Circuit Breaker | 1P 230/400V | C-Curve 6A-125A | Overload & Short-Circuit Protection

The CHINT NXB-63 miniature circuit breaker provides reliable overload and short-circuit protection for residential and light commercial electrical systems. This 1P AC 230/400V breaker features a Type ...
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Questions about this product
- What does the Type C curve mean for my circuits?
- The Type C curve trips between 5 and 10 times the rated current, so it tolerates short inrush surges. That suits lighting and household appliances without nuisance tripping. It still cuts power fast on real overloads and short circuits.
- Does this breaker fit single-phase and three-phase systems?
- It's rated 230/400V AC, so it works on standard single-phase and three-phase installations. This is a 1P unit at 18mm wide that clips onto a 35mm DIN rail. It drops into most consumer units and distribution boards.
- Which current rating should I choose?
- Ratings run from 6A up to 125A, so match the amp value to your circuit's load and wire size. Smaller ratings suit individual lighting circuits, while larger ones cover sub-main feeders. The breaking capacity is 6kA.
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