MANUFACTURER PRODUCT FILE · 2026-10-24

CHINT NXB-63 miniature circuit breaker

Australian regional specification record; NXB-63H and other suffix models are separate. Confirm the destination-market configuration.

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PRODUCT REFERENCE

CHINT NXB-63 miniature circuit breaker

Rated current envelope: 1–63 A
Frequency / trip curves: 50/60 Hz / B, C, D
Pole options: 1P, 1P+N, 2P, 3P, 3P+N, 4P

Specification summary from the company publication linked below.

NXB-63 · regional rating reference · Atlas original diagram · source-specific catalogue ratings. Series or schematic reference; not an exact dimensional product photograph. Original source ↗

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Source: company publication

Checked on 2026-10-24. Published ranges describe the catalogue, not live stock or a confirmed quotation.

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PUBLISHED SPECIFICATIONS

What the source actually states.

Parameter	Company-published information	Source
Rated current envelope	1–63 A	Company page ↗
Frequency / trip curves	50/60 Hz / B, C, D	Company page ↗
Pole options	1P, 1P+N, 2P, 3P, 3P+N, 4P	Company page ↗
Voltage options	220/230/240 V: 1P, 1P+N, 2P; 380/400/415 V: 2P–4P, 3P+N	Company page ↗
Rated breaking capacity Icn	6 kA; 10 kA only for 2P at 220/230/240 V	Company page ↗
Service breaking capacity Ics	6 kA; 7.5 kA only for 2P at 220/230/240 V	Company page ↗

Standards are listed as published by the company; no equivalence between standards, certification or suitability for your application is implied.

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Exact pole/voltage/current/curve combination and order code
Prospective fault current and protection coordination by responsible engineer
Current regional model documents, producing site, dimensions and terminal/accessory requirements
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Commercial details to request

MOQ: Not confirmed in this source
Unit price / currency: Not confirmed in this source
Lead time: Not confirmed in this source
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Packing & Incoterms: Not confirmed in this source
Current certificates / test reports: Not confirmed in this source

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