PXB2-63 Miniature Circuit Breaker (MCB)
O PXB2-63 miniature circuit breaker provides overload and short-circuit protection within the published 6A–63A range. Its verified product data lists 4.5kA Icn = Ics, 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
PXB2-63 is a 4.5kA Icn = Ics 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 and lists CCC certification. 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 | PXB2-63 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 | 4.5kA Icn = Ics | 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
4.5kA Icn = Ics 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: PXB2-63.
- 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
Dimensões (mm)
Technical Specifications
| Parâmetro | |
| Rated Insulation Voltage | 500V |
| Rated Impulse Withstand Voltage | 4000V |
| Rated Current(A) | 6,10,16,20,25,32,40,50,63 |
| Frequência Nominal | 50Hz / 60Hz |
| Número de Polos | 1P, 2P, 3P,4P |
| Rated Short-Circuit Capacity Icn (A) | 4500A |
| Service Short-Circuit Capacity Ics (A) | 4500A |
| Mechanical and Electrical Endurance (cycles) | Mechanical≥10000, Electrical≥10000 |
| Instantaneous Tripping Types | B,C, D |
| Grip Distance | 45mm |
| Protection Degree | IP20 |
| Standards Compliance | IEC60898-1, GB/ T10963.1 |
| Certificação | CCC |
Tripping characteristics(Reference temperature 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 | Switch on the power supply by closing the auxiliary switch |
| C | 5In | |||||
| D | Entrada de 10 polegadas | |||||
| e | B | 5In | Frio | t < 0.1s | Viagem | Switch on the power supply by closing the auxiliary switch |
| C | Entrada de 10 polegadas | |||||
| D | 20In |
Note: The term “cold” means that the test is carried out at a reference calibration temperature without load before the test.
Requisitos e secção transversal do condutor
| Secção transversal de cobre(mm²2) | 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 PXB2-63 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 em Miniatura Série PXB2
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.
PXB2-63 Product FAQ
What does 4.5kA mean on the PXB2-63 MCB?
It is the published short-circuit breaking-capacity value, stated as 4.5kA Icn = Ics. It does not describe normal load current or guarantee suitability at every installation point.
What does the kA rating tell you about PXB2-63?
kA means thousands of amperes of short-circuit current under the applicable test conditions. PXB2-63 rated-current options are separately published as 6A–63A.
Is a higher kA model always better than PXB2-63?
A higher verified rating may be needed where the prospective fault current is higher, but it is not a universal quality score. Select from fault level, coordination, standard, dimensions and project requirements.
Is 10kA the same as a 10,000A continuous current rating?
No. A 10kA value refers to short-circuit interruption, not continuous loading. The conductor and normal load must be matched to the breaker's ampere rating.
What is the difference between 4.5kA, 6kA and 10kA MCBs?
They state different short-circuit breaking capacities. The installation's prospective short-circuit current and coordination study determine the minimum acceptable duty; rated current and curve are separate choices.
How many watts can a 10A MCB supply?
Power cannot be determined from 10A alone; it depends on system voltage, phase arrangement, power factor, load behavior and applicable continuous-loading rules. The circuit and conductor must be designed together.
Confirm the Right PXB2-63 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.
