Back to products
chintNB1-63
CHINT NB1-63 Miniature Circuit Breaker
IEC 60898-1 / 60947-2 MCB — 1 A to 63 A, 6 kA breaking capacity, B/C/D curves, for residential, commercial and industrial distribution.
- Rated current (In): 1, 2, 3, 4, 6, 10, 16, 20, 25, 32, 40, 50, 63 A
- Pole configurations: 1P, 1P+N, 2P, 3P, 3P+N, 4P
- Tripping curves: B (3–5 In), C (5–10 In), D (10–14 In)
- Rated breaking capacity (Icn): 6 kA at 230/400 V AC
- Rated insulation voltage (Ui): 500 V; impulse withstand (Uimp): 4 kV
mcbcircuit-breakeriecnb1nb1-63residentialcommercialindustrial
CHINT certified
Local support
In stock or short lead time
Overview
The CHINT NB1-63 is a current-generation miniature circuit breaker built for short-circuit and overload protection in domestic, commercial, and industrial electrical distribution boards. Available across 1P, 1P+N, 2P, 3P, 3P+N, and 4P configurations from 1 A to 63 A, with B, C, and D tripping curves to suit resistive, inductive, and high-inrush loads. Rated breaking capacity is 6 kA per IEC/EN 60898-1, with a 4 kV impulse withstand and 500 V insulation voltage. Energy-limiting Class 3, IP20 housing, DIN-rail mount (EN 60715, 35 mm), tested to IEC/EN 60898-1, IEC/EN 60947-2, and UL 1077.
