Disjuntor Miniatura CQB2H-63
O CQB2H-63 miniature circuit breaker provides overload and short-circuit protection within the published 6A–63A range. Its verified product data lists 10kA Icn, 1P / 2P / 3P / 4P and B / C / D. Final selection must match the conductor, load, prospective fault current, installation system and applicable local rules.
Visão Geral do Produto
CQB2H-63 is a 10kA Icn miniature circuit breaker covering 6A–63A. It is available with 1P / 2P / 3P / 4P and B / C / D trip options as stated in the product data.
The model data references IEC 60898-1; GB/T 10963.1. Standards, certification scope and technical documents must be confirmed for the ordered configuration and destination market.
Principais Características
Aplicações Típicas
It is intended for AC distribution circuits where the selected current rating, curve, pole arrangement and breaking capacity match the conductor and system study. Typical project contexts include residential, commercial and light-industrial final distribution; suitability depends on the actual circuit rather than the application label alone.
Guia de Candidaturas e Seleção
Use the product-specific values below as a shortlist, then validate the complete circuit design. Product ratings do not replace a fault-current study, conductor calculation, coordination review or applicable installation rules.
| Ponto de seleção | CQB2H-63 option | O que o projeto deve confirmar |
|---|---|---|
| Corrente nominal | 6A–63A | Coordinate with design current, conductor ampacity, ambient temperature and grouping |
| curva de disparo | B / C / D | Choose for load inrush and required fault-clearing performance, not by current alone |
| Capacidade de corte | 10kA Icn | Confirm against the prospective short-circuit current at the installation point |
| Pole arrangement | 1P / 2P / 3P / 4P | Match supply system and local switching or isolation rules |
| Installation interface | DIN-rail installation | Check enclosure, rail/base, terminal and conductor compatibility |
Breaking Capacity
10kA Icn is the published product value. Confirm the prospective short-circuit current at the installation point.
Trip and Load Behaviour
B / C / D is the available trip/protection option. Match it to load inrush and required disconnection performance.
Pole Configuration
Available arrangement: 1P / 2P / 3P / 4P. Confirm which conductors must be switched and protected under local rules.
MCB or RCBO
An MCB does not replace residual-current protection where an RCD or RCBO is required.
Guia de Encomenda
- Specify the exact model: CQB2H-63.
- Indique a corrente nominal exigida entre 6A e 63A.
- Confirm pole arrangement: 1P / 2P / 3P / 4P.
- Confirm trip or protection option: B / C / D.
- Provide system voltage, expected fault level, destination market, quantity and any document requirements.
Verificações de Instalação e Coordenação
- Verify conductor material and cross-section against the circuit calculation and the published terminal range.
- Confirm the prospective short-circuit current does not exceed the applicable breaking rating.
- Check upstream/downstream coordination, enclosure temperature, grouping, altitude and required clearances.
- A instalação, isolamento, teste e manutenção devem ser efetuados por pessoal qualificado ao abrigo das normas aplicáveis.
Designação do tipo
Curvas de disparo
Dimensions(unit:mm)
Especificações Técnicas
| Parâmetro | |
| Tensão nominal | 230V/400V (1P), 400V~ (2P/3P/4P) |
| Corrente nominal | 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A |
| Número de polos | 1P, 2P, 3P, 4P |
| Rated short circuit breaking capacity Icn | 10000 A |
| Vida mecânica e elétrica | Mechanical ≥ 20000, Electrical ≥ 6000 |
| Tripping characteristics | B, C, D |
| Tightening torque (N·m) | 3.5 |
| Pollution degree | 2 |
| Grau de proteção | IP20 |
| Categoria de sobretensão | Ⅱ, Ⅲ |
| Normas | IEC 60898-1, GB/T 10963.1 |
Table1 Tripping characteristics (Reference temp.30℃)
| Artigo | Curva de disparo | Corrente de teste In(A) | Estado Inicial | Prazo para tropeçar ou não tropeçar | Resultado esperado | Observações |
| a | B, C, D | 1.13In | Frio | t ≤ 1h | Não disparável | Current smoothly rises to specified value within 5s |
| b | B, C, D | 1,45 pol | Following item a test | t < 1h | Viagem | |
| c | B, C, D | 2,55 pol | Frio | 1s < t ≤ 60s (In ≤ 32A) 1s < t ≤ 120s (In > 32A) |
Viagem | |
| d | B | 3In | Frio | t ≤ 0.1s | Não disparável | Ligue a fonte de alimentação fechando o interruptor auxiliar |
| C | 5In | |||||
| D | Entrada de 10 polegadas | |||||
| e | B | 5In | Frio | t < 0.1s | Viagem | Ligue a fonte de alimentação fechando o interruptor auxiliar |
| C | Entrada de 10 polegadas | |||||
| D | 20In |
Nota: The term “cold” means that the test is carried out at a refererce calibration temperature without load before the test
Requisitos e secção transversal do condutor
| Secção transversal de cobre (mm²) | Corrente nominal In(A) |
| 1 | Em ≤ 6 |
| 1.5 | 6<Em≤13 |
| 2.5 | 13<in≤20</in≤20 |
| 4 | 20<Em≤25 |
| 6 | 25<In≤32 |
| 10 | 32<In≤50 |
| 16 | 50<In≤63 |
Porquê escolher a CHAC
Com mais de 30 anos de experiência em fabrico, mais de 1100 funcionários, mais de 100 milhões de postes
Com uma capacidade anual e um processo de produção automatizado 90%, a CHAC garante uma capacidade de produção estável e rigorosos
Controlo de qualidade para clientes OEM/ODM globais. O nosso sistema de fabrico interno suporta a longo prazo
cooperação para marcas elétricas, importadores e distribuidores.
30+
ANOS DE EXPERIÊNCIA
Especializado em fabrico de baixa tensão elétrica
1100+
FUNCIONÁRIOS
Equipa profissional garante qualidade e entrega estáveis
100M+
CAPACIDADE ANUAL DE POSTOS
Capacidade de produção em larga escala para satisfazer a procura global
90%
PRODUÇÃO AUTOMATIZADA
Automação avançada para alta eficiência e consistência
Linha de Montagem Automatizada
Laboratório de Ensaios
Injeção e Estampagem
Inspeção de Qualidade
Um rigoroso sistema de controlo de qualidade garante que cada produto cumpre as normas globais.
O que podemos personalizar?
For CQB2H-63 projects, CHAC can review private-label marking, packaging, appearance, available electrical configurations and technical-document requirements. Requests outside the published range are subject to engineering evaluation, testing, MOQ and project feasibility.
Logótipo e Identidade Visual
Private-label marking and nameplate options are subject to artwork review and sample approval.
Embalagem
Personalização
Cartons, labels and manuals can be prepared for the approved order specification and destination market.
Elétrico
Personalização
Select from the published 6A–63A, 1P / 2P / 3P / 4P and B / C / D options; non-standard requests require technical evaluation.
Produto
Aparência
Appearance options can be reviewed subject to tooling, MOQ, marking requirements and technical feasibility.
Certificação
Apoio
Datasheets, drawings and verified certificate information are supplied for the applicable approved configuration.
Engenharia
Desenvolvimento
Project support may include drawing review, sample evaluation, testing and production planning, subject to technical approval.
Transferir
Disjuntor Miniature Série CQB2
Visão geral completa de componentes elétricos de baixa tensão e referência para seleção de produtos.
Precisa de Documentos Técnicos?
Contacte-nos para folhas de dados, certificados, desenhos, orientação de seleção ou suporte a projetos OEM/ODM.
CQB2H-63 Product FAQ
What does 10kA mean on the CQB2H-63 MCB?
10kA is the published rated short-circuit breaking capacity, not the normal load current. It means the device's interrupting duty is stated as 10,000A under the applicable test conditions.
When is the 10kA CQB2H-63 the right choice?
Use a 10kA MCB only when the prospective short-circuit current and the protection-coordination study are within its published duty. A higher rating should not replace a fault-level calculation.
How should kA be interpreted on the CQB2H-63?
kA expresses short-circuit interrupting capacity in thousands of amperes. It is separate from the 6A–63A rated-current options used to select load and conductor protection.
Is 10kA the same as a 10,000A load rating?
No. The 10kA value relates to fault interruption. CQB2H-63 continuous rated-current choices remain within 6A–63A and must be coordinated with the conductor and design current.
What is the difference between a 10kA and 6kA MCB?
The main difference is the stated short-circuit breaking capacity. Choose between them from the prospective fault current, applicable standard, coordination requirements and verified product data—not from price or current rating alone.
Which CQB2H-63 curve and pole configuration should I choose?
CQB2H-63 is published with B, C and D curves and 1P–4P options. Match the curve to inrush and fault-clearing needs and match the poles to the supply, switching, neutral and isolation design.
Confirm the Right CQB2H-63 Configuration
Send your current rating, pole arrangement, trip option, system voltage, prospective fault level, destination market and quantity. CHAC will review the request against the published product range.
