Disjuntor Miniature PXB6-125
O PXB6-125 miniature circuit breaker provides overload and short-circuit protection within the published 10A–125A range. Its verified product data lists 12.5kA Icn; 7.5kA Ics, 1P / 2P / 3P / 4P and C / D. Final selection must match the conductor, load, prospective fault current, installation system and applicable local rules.
Visão Geral do Produto
PXB6-125 is a 12.5kA Icn; 7.5kA Ics miniature circuit breaker covering 10A–125A. It is available with 1P / 2P / 3P / 4P and 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 | PXB6-125 option | O que o projeto deve confirmar |
|---|---|---|
| Corrente nominal | 10A–125A | Coordinate with design current, conductor ampacity, ambient temperature and grouping |
| curva de disparo | C / D | Choose for load inrush and required fault-clearing performance, not by current alone |
| Capacidade de corte | 12.5kA Icn; 7.5kA 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
12.5kA Icn; 7.5kA Ics is the published product value. Confirm the prospective short-circuit current at the installation point.
Trip and Load Behaviour
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: PXB6-125.
- State the required current rating within 10A–125A.
- Confirm pole arrangement: 1P / 2P / 3P / 4P.
- Confirm trip or protection option: 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)
Especificações Técnicas
| Parâmetro | |
| Rated Voltage (V) | 230V (1P), 400V (2P, 3P, 4P) |
| Rated Impulse Withstand Voltage, Uimp (V) | 6000V |
| Rated Current (A) | 10, 16, 20, 25, 32, 40, 50, 63, 80, 100, 125A |
| Frequência Nominal | 50Hz |
| Número de Polos | 1P, 2P, 3P, 4P |
| Rated Ultimate Short-Circuit Breaking Capacity, Icn (A) | 12500A |
| Rated Service Short-Circuit Breaking Capacity, Ics (A) | 7500A |
| Mechanical Life (operations) | ≥10000 |
| Electrical Life (operations) | ≥4000 |
| Curvas de Disparo | C, D |
| Protection Class | IP20 |
| Installation Category | Ⅱ & Ⅲ |
| Padrão | IEC60898-1, GB/T10963.1 |
Tripping Characteristics (Reference Temperature: 30°C)
| Artigo | Curva de disparo | Test Current (A) | Estado Inicial | Prazo para tropeçar ou não tropeçar | Resultado esperado | Observações |
| a | C, D | 1.05In | Frio | 1h(In≤63A) 2h(In>63A) |
Não disparável | Current smoothly rises to specified value within 5s |
| b | C, D | 1.3In | Following item a test | 1h(In≤63A) 2h(In>63A) |
Viagem | |
| c | C, D | 2In | Frio | 1s<t<300s | Viagem | |
| d | C | 8In×80% | Frio | t ≤ 0.2s | Não disparável | Ligue a fonte de alimentação fechando o interruptor auxiliar |
| D | 12In×80% | Não disparável | ||||
| e | C | 8In×80% | Frio | t < 0.2s | Viagem | Ligue a fonte de alimentação fechando o interruptor auxiliar |
| D | 12In×80% | Viagem |
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 (mm²) | Corrente nominal In(A) |
| 1 | Em ≤ 6 |
| 1.5 | 6 < In≤13 |
| 2.5 | 13 < In≤20 |
| 4 | 20 < In≤25 |
| 6 | 25 < In≤32 |
| 10 | 32 < In≤50 |
| 16 | 50 < In≤63 |
| 25 | 65 < In≤80 |
| 35 | 80 < In≤100 |
| 50 | 100 < In≤125 |
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 PXB6-125 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 10A–125A, 1P / 2P / 3P / 4P and 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 PXB6
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.
PXB6-125 Product FAQ
Is 2 AWG wire suitable for a 125A breaker?
No universal answer is safe because AWG ampacity depends on conductor material, insulation, temperature, termination rating, installation method and local code. PXB6-125 uses metric product references; the project designer must perform the final cable calculation.
What conductor size will fit the PXB6-125?
The published product reference associates 125A with up to 50mm² copper, with smaller references for lower ratings. Terminal fit does not prove ampacity; verify conductor calculation, termination data and installation conditions.
Can #4 copper be used on a 100A breaker?
That is jurisdiction- and installation-specific and cannot be confirmed from the breaker rating alone. For PXB6-125, use the published metric terminal reference and the applicable conductor-sizing rules rather than converting by assumption.
What does kA mean on the PXB6-125?
kA describes short-circuit interrupting duty, not rated load current. PXB6-125 publishes 12.5kA Icn and 7.5kA Ics, which must be checked against the prospective fault current and coordination requirements.
When is a higher-breaking-capacity MCB required?
It is required when the calculated prospective short-circuit current and coordination study demand that duty. The published Icn and Ics values must both be considered for the intended system.
How do I choose the correct PXB6-125 breaker?
Confirm 10A–125A rated current, C or D curve, 1P–4P arrangement, operating voltage, fault level, conductor calculation, enclosure conditions, standard and destination-market documents.
Confirm the Right PXB6-125 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.
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