Disyuntor miniatura de CA de la serie CQB3-63 50Hz/60Hz
El CQB3-63 miniature circuit breaker provides overload and short-circuit protection within the published 6A–63A range. Its verified product data lists 6kA Icn, 1P / 1P+N / 2P / 3P / 3P+N / 4P and B / C / D. Final selection must match the conductor, load, prospective fault current, installation system and applicable local rules.
Descripción del producto
CQB3-63 is a 6kA Icn miniature circuit breaker covering 6A–63A. It is available with 1P / 1P+N / 2P / 3P / 3P+N / 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.
Características clave
Aplicaciones 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.
Guía de Solicitudes y Selección
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.
| Punto de selección | CQB3-63 option | Lo que el proyecto debe confirmar |
|---|---|---|
| Corriente 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 |
| Capacidad de corte | 6kA Icn | Confirm against the prospective short-circuit current at the installation point |
| Pole arrangement | 1P / 1P+N / 2P / 3P / 3P+N / 4P | Match supply system and local switching or isolation rules |
| Installation interface | 45mm mounting rail reference | Check enclosure, rail/base, terminal and conductor compatibility |
Breaking Capacity
6kA 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 / 1P+N / 2P / 3P / 3P+N / 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.
Guía de pedidos
- Specify the exact model: CQB3-63.
- Indique la corriente nominal requerida entre 6A y 63A.
- Confirm pole arrangement: 1P / 1P+N / 2P / 3P / 3P+N / 4P.
- Confirm trip or protection option: B / C / D.
- Provide system voltage, expected fault level, destination market, quantity and any document requirements.
Comprobaciones de Instalación y Coordinación
- 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.
- La instalación, el aislamiento, las pruebas y el mantenimiento deben ser realizados por personal cualificado de conformidad con las normas aplicables.
Designación del tipo
Curvas de disparo
Dimensiones (unidad: mm)
Especificaciones técnicas
| Parámetro | |
| Tensión Nominal de Aislamiento (Ui) | 500V |
| Tensión Nominal de Resistencia al Impulso (Uimp) | 4000 V |
| Corriente Nominal (In) | 6, 10, 16, 20, 25, 32, 40, 50, 63 |
| Frecuencia nominal | 50 Hz / 60 Hz |
| Número de polos | 1P, 1P+N, 2P, 3P, 3P+N, 4P |
| Capacidad de ruptura nominal (Icn) | 6000A |
| Vida útil mecánica y vida útil eléctrica | Mecánica ≥10000, Eléctrica ≥6000 |
| Curvas de disparo | B, C, D |
| Riel de montaje | 45 mm |
| Grado de protección (código IP) | IP20 |
| Normas aplicables | IEC 60898-1, GB/T 10963.1 |
| Certificación | CCC |
Tabla 1. Características de disparo (temperatura de referencia: 30 °C)
| Artículo | Tipo | Corriente de prueba En(A) |
Estado inicial | Plazo para activar el dispositivo de desconexión o antideslizante |
Resultado esperado | Observaciones |
| a | B, C, D | 1,13 ln | Frío | t ≤ 1 h | No desatascador | La corriente aumenta de forma gradual hasta alcanzar el valor especificado en 5 segundos. |
| b | B, C, D | 1.45ln | Siguiendo prueba anterior |
1 h | Tropezando | |
| c | B, C, D | 2,55 ln | Frío | 1s<t<60s(In≤32A) <t1s32A)</t |
Tropezando | |
| d | B | 3ln | Frío | t ≤ 0,1 s | No desatascador | Enciende la fuente de alimentación cerrando el interruptor auxiliar |
| C | 5In | |||||
| D | 10 en | |||||
| e | B | 5In | Frío | t<0,1s | Tropezando | Enciende la fuente de alimentación cerrando el interruptor auxiliar |
| C | 10ln | |||||
| D | 20ln |
Nota: El término “en frío” significa que la prueba se realiza a una temperatura de calibración de referencia sin carga antes de la prueba.
Requisitos del conductor y sección transversal
| Sección transversal de cobre (mm²) | Corriente nominal In(A) |
| 1 | En≤6 |
| 1.5 | 6<En≤13 |
| 2.5 | 13<En≤20 |
| 4 | 20<En≤25 |
| 6 | 25<En≤32 |
| 10 | 32<En≤50 |
| 16 | 50<En≤63 |
¿Por qué elegir CHAC?
Con más de 30 años de experiencia en fabricación, más de 1100 empleados, más de 100 millones de postes
Con una capacidad anual y un proceso de producción automatizado 90%, CHAC ofrece una capacidad de producción estable y un estricto
control de calidad para clientes OEM/ODM globales. Nuestro sistema de fabricación interno respalda a largo plazo
Cooperación para marcas eléctricas, importadores y distribuidores.
30+
AÑOS DE EXPERIENCIA
Especializado en fabricación eléctrica de bajo voltaje
1100+
EMPLEADOS
Equipo profesional garantiza calidad y entrega estables
100M+
CAPACIDAD ANUAL DE LOS POLOS
Capacidad de producción a gran escala para satisfacer la demanda mundial
90%
PRODUCCIÓN AUTOMATIZADA
Automatización avanzada para alta eficiencia y consistencia
Línea de ensamblaje automatizada
Laboratorio de pruebas
Inyección y Estampado
Inspección de calidad
Un estricto sistema de control de calidad garantiza que cada producto cumpla con los estándares mundiales.
¿Qué podemos personalizar?
For CQB3-63 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.
Logotipo y marca
Private-label marking and nameplate options are subject to artwork review and sample approval.
Empaquetado
Personalización
Cartons, labels and manuals can be prepared for the approved order specification and destination market.
Eléctrico
Personalización
Select from the published 6A–63A, 1P / 1P+N / 2P / 3P / 3P+N / 4P and B / C / D options; non-standard requests require technical evaluation.
Producto
Apariencia
Appearance options can be reviewed subject to tooling, MOQ, marking requirements and technical feasibility.
Certificación
Apoyo
Datasheets, drawings and verified certificate information are supplied for the applicable approved configuration.
Ingeniería
Desarrollo
Project support may include drawing review, sample evaluation, testing and production planning, subject to technical approval.
Descargar
Interruptor automático en miniatura serie CQB3
Descripción general completa de componentes eléctricos de bajo voltaje y referencia para la selección de productos.
¿Necesita documentos técnicos?
Contáctenos para obtener hojas de datos, certificados, planos, orientación de selección o soporte para proyectos OEM/ODM.
CQB3-63 Product FAQ
What is the trip curve of an MCB?
The trip curve describes how quickly an MCB responds at different multiples of rated current. CQB3-63 offers B, C and D options, which must be selected from load inrush and required fault-disconnection performance.
Which MCB curve is best for CQB3-63?
There is no universally best curve. B is generally evaluated for lower inrush, C for moderate inrush and D for higher inrush, but the final choice depends on the actual load and available fault current.
When is a C curve appropriate for the CQB3-63?
A C curve is commonly considered for general circuits with moderate starting current. Confirm that normal inrush will not cause nuisance tripping and that the available fault current can still operate the breaker within the required time.
Will a 20A MCB trip exactly at 20A?
Not instantaneously. Thermal operation follows a time-current characteristic, so trip time depends on the magnitude and duration of overcurrent, reference conditions and the applicable product curve.
Does the 80% rule apply to every MCB installation?
No universal 80% rule should be transferred across all markets and applications. Continuous-load treatment, conductor sizing and protective-device selection must follow the applicable installation rules and project design.
What does the 125% rule mean when selecting a breaker?
The phrase commonly refers to market-specific continuous-load or conductor-sizing provisions. It is not a substitute for checking CQB3-63 ratings, derating, cable calculations and the electrical rules that govern the project.
Confirm the Right CQB3-63 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.
