Fabricante OEM/ODM de MCCB con fuga integrada CQM6L
El CQM6L MCCB provides overload, short circuit and adjustable earth-leakage protection within its published 10–1250A frame range; verify ordered In range. Specification should follow the system voltage, load, conductor coordination, prospective fault current and applicable rules—not the ampere value alone.
Descripción del producto
CQM6L is a earth leakage circuit breaker for AC 400/415V distribution and protection applications. Its published range covers 10–1250A frame range; verify ordered In with 3P / 4P options. Selection depends on the complete power-system design, including fault level, coordination, conductor ampacity, enclosure conditions and local rules.
The saved model record lists IEC/EN 60947 and GB/T 14048 references listed on the page as the applicable standard reference. No certification claim is added beyond the model record.
Características clave
Aplicaciones típicas
Typical applications include distribution and motor circuits where an MCCB and residual-current function are specified together. These are evaluation contexts rather than universal approvals. Confirm the exact frame, voltage, breaking duty, trip unit, accessories and installation method before specification.
Guía de Solicitudes y Selección
Use the verified CQM6L values below to create a shortlist, then validate the complete circuit. An MCCB rating does not replace conductor calculations, fault-current analysis, coordination review or local installation requirements.
| Punto de selección | CQM6L reference | Lo que el proyecto debe confirmar |
|---|---|---|
| Corriente nominal | 10–1250A frame range; verify ordered In | Design current, conductor ampacity, installation method, temperature and grouping |
| Voltaje | AC 400/415V | Sistema de suministro y capacidad nominal de los equipos |
| Polacos | 3P / 4P | Live conductors and neutral treatment |
| Trip / protection | thermal-magnetic trip | Load profile, fault response and coordination |
| Capacidad de corte | C/S/M/H classes up to 75kA, according to frame and ordered configuration | Prospective short-circuit current at the installation point |
Overcurrent vs Earth-Leakage Protection
An MCCB's overcurrent function does not replace residual-current protection. Select leakage sensitivity, delay and waveform type from the verified model data and project rules.
Leakage Protection
Confirm Leakage Selection →
MCCB vs MCB
An MCCB is normally evaluated for higher current, fault duty or accessory flexibility; an MCB may be more suitable for compact final circuits.
Current & Fault Duty
Compare MCCB and MCB →
Icu vs Ics
The saved data for CQM6L lists C/S/M/H classes up to 75kA, according to frame and ordered configuration. Match the declared duty to the prospective short-circuit current and continuity objective.
Short-Circuit Study
Review Technical Support →
Pole and Neutral Arrangement
Published pole options are 3P / 4P. Confirm which conductors must be switched, protected and isolated together.
System Arrangement
View MCCB Range →
Guía de pedidos
- State the exact model: CQM6L.
- Provide frame and rated current within the published range: 10–1250A frame range; verify ordered In.
- Confirm poles: 3P / 4P.
- Specify the trip unit or protection function: thermal-magnetic trip.
- Provide system voltage, frequency, application, expected fault level, destination market and quantity.
- List required accessories, terminals, documents and any approved OEM/ODM marking or packaging requirements.
Comprobaciones de Instalación y Coordinación
- Use the exact model drawing and instructions; do not infer terminal positions, supply direction or accessory compatibility from another MCCB.
- Verify conductor material and cross-section against the circuit calculation, terminal data, temperature and grouping.
- Confirm Icu/Ics or DC fault duty, upstream/downstream coordination, enclosure conditions, altitude and clearances.
- Installation, isolation, testing and maintenance must be performed by qualified personnel under applicable rules.
Lista de accesorios

Guía de selección

| Código de producto ① | Grado de marco de carcasa ② | Capacidad de corte ③ | Método de operación ④ | El número de polos ⑤ | ||||
| CQM6L | 160 | C | P | 4 | ||||
| Moldeado circuito impreso disyuntor |
C | S | M | H | Funcionamiento motorizado Girando el mango Operación W.Direct |
tripolar tetrapolar |
||
| 160 | 160 | 25/18 | 35/25 | / | / | |||
| 250 | 250 | 25/18 | 35/25 | / | / | |||
| 630 | 630 | / | 35/25 | 50/35 | 75/75 | |||
| 800 | 800 | / | 35/25 | 50/35 | 75/75 | |||
| 1250 | 1250 | / | 35/25 | 50/35 | 75/75 | |||
| Método de desacoplador y accesorios internos ⑥ | Corriente nominal A ⑦ | Función ⑧ | Código opcional para productos de cuatro polos ⑨ | Código especial ⑩ | |
| 300 | 160A | 2 | A | I | |
| El primer dígito indica el tipo de retén 2: Retén instantáneo solamente 3: Retén duplicado Nota: Los últimos dos dígitos son el designador del accesorio (consulte la tabla de accesorios). |
160 | 10,16,20,32,40,50,63,80,100,125,140,160 | 1: Para la distribución de energía Para la protección del motor |
El polo N está desprotegido y no se puede combinar El polo B:N está desprotegido y se puede combinar El polo C:N está protegido y se puede combinar El polo D:N está protegido y no se puede combinar |
Función de anulación de la alarma de sobrecarga |
| 250 | 100,125,140,160,180,200,225,250 | ||||
| 630 | 250,315,350,400,500,630 | ||||
| 800 | 500,630,700,800 | ||||
| Product code ⑪ | Breaking capacity ⑫ | ||||||
| L1 | Y1 | ||||||
| Fixed delay type | Quick three-step adjustable | Fixed delay type | Quick three-step adjustable | ||||
| L1:30 | L6:200 | L11:30,50,100 | Y1:0.1S | Y4:0.4S | Y7:0.7S | Y10:1.0S | Y13:0.45,1,2 |
| L2:50 | L7:300 | L12:30,100,200 | |||||
| L3:75 | L8:500 | L13:30,100,500 | Y2:0.2S | Y5:0.5S | Y8:0.8S | Y11:1.1S | Y14:1,2,3 |
| L4:100 | L9:500 | L14:100,300,500 | |||||
| L5:150 | L10:1000 | L15:100,300,500 | Y3:0.3S | Y6:0.6S | Y9:0.9S | Y12:1.2S | |
| L16:100,300,1000 | |||||||
| Accessory Voltage ⑬ | Motorized operating voltage ⑭ | Installation ⑮ | Whether to install a terminal block ⑯ | |||
| Q1 | D1 | Q | 2 | |||
| Undervoltage detent Q1:AC220V Q2:AC240V Q3:AC380V Q4:AC415V |
Shunt release F1:AC220V F2:AC380V F3:DC110V F4:DC24V |
Auxiliary alarm J1:AC125V J2:AC250V J3:DC125V J4:DC24V |
DC1 Electrical Operation D1:AC220V D2:AC230V D3:AC380V D4:AC400V |
DC3 Electrical Operation D5:AC230V D6:AC110V D7:DC220 D8:DC110 D9:AC110~240V D10:DC100~220V |
Q:Front of plate H:Rear of plate C:Inserted |
1:No installation 2:Installation |
| Note:When motorized operation is selected,please refer to the external accessories for the two voltages applicable for motorized operation. | ||||||
Main Technical Parameters
| Número de modelo | CQM6L-160 | CQM6L-250 | ||||
| Rated current of frame level Inm(A) | 160 | 250 | ||||
| Número de polos | 4 | 4 | ||||
| Rated current In(A),at 40℃,50℃,55℃ | 10, 16, 20, 32, 40, 50, 63, 80,100, 125, 160 | 125,140,160,180,200,225,250 | ||||
| Rated operating voltage Ue(V),AC 50/60Hz | 400/415 | 400/415 | ||||
| Rated insulation voltage Ui (V) | 800 | 800 | ||||
| Rated impulse withstand voltage Uimp(KV) | 8 | 8 | ||||
| Breaking capacity designation | C | S | C | S | ||
| Short-circuit breaking capacity Icu/Ics(kA) | AC400/415V | 25/18 | 35/25 | 25/18 | 35/25 | |
| Selectivity category | A | A | A | A | ||
| Number of operating cycles(cycle) | ON | 6000 | 6000 | |||
| OFF | 10000 | 10000 | ||||
| Trip mechanisms and protection types | Magnetic trip | Power distribution protection | ● | ● | ● | ● |
| Motor protection | ● | ● | ● | ● | ||
| Thermal-magnetic trip | Power distribution protection | ● | ● | ● | ● | |
| Motor protection | ● | ● | ● | ● | ||
| Accessory | Auxiliary contacts | ● | ● | ● | ● | |
| Alarm contacts | ● | ● | ● | ● | ||
| Shunt disconnect | ● | ● | ● | ● | ||
| Undervoltage detent | ● | ● | ● | ● | ||
| Manual operating mechanism | ● | ● | ● | ● | ||
| Motorized operating mechanism | ● | ● | ● | ● | ||
| Backplane wiring | ● | ● | ● | ● | ||
| Inserted | ● | ● | ● | ● | ||
| Coupling plate | ● | ● | ● | ● | ||
| Partition between phases | ● | ● | ● | ● | ||
| Derivative products | Dedicated for prepayment electric meters | ● | ● | ● | ● | |
| Overload alarm without trip | ● | ● | ● | ● | ||
| Overall dimensions (mm) (a-b-c-ca) | ![]() |
4 P | 120-155-70-94 | 140-165-70-96 | ||
Note:● for optional accessories;”-“for no optional accessories.
| Número de modelo | CQM6L-630 | CQM6L-800 | ||||||
| Rated current of frame level Inm(A) | 630 | 800 | ||||||
| Número de polos | 3, 4 | 4 | ||||||
| Rated current In(A),at 40℃,50℃,55℃ | 250, 315, 350, 400, 500, 630 | 500,630,700,800 | ||||||
| Rated operating voltage Ue(V),AC 50/60Hz | 400/415 | 400/415 | ||||||
| Rated insulation voltage Ui (V) | 800 | 800 | ||||||
| Rated impulse withstand voltage Uimp(KV) | 8 | 8 | ||||||
| Breaking capacity designation | S | M | H | S | M | H | ||
| Short-circuit breaking capacity Icu/Ics(kA) | AC400/415V | 35/25 | 50/35 | 75/75 | 35/25 | 50/35 | 75/75 | |
| Selectivity category | A | A | A | A | A | A | ||
| Number of operating cycles(cycle) | ON | 3000 | 3000 | |||||
| OFF | 8000 | 8000 | ||||||
| Trip mechanisms and protection types |
Magnetic trip | Power distribution protection | ● | ● | ● | ● | ● | ● |
| Motor protection | ● | ● | ● | ● | ● | ● | ||
| Thermal-magnetic trip | Power distribution protection | ● | ● | ● | ● | ● | ● | |
| Motor protection | ● | ● | ● | ● | ● | ● | ||
| Accessory | Auxiliary contacts | ● | ● | ● | ● | ● | ● | |
| Alarm contacts | ● | ● | ● | ● | ● | ● | ||
| Shunt disconnect | ● | ● | ● | ● | ● | ● | ||
| Undervoltage detent | ● | ● | ● | ● | ● | ● | ||
| Manual operating mechanism | ● | ● | ● | ● | ● | ● | ||
| Motorized operating mechanism | ● | ● | ● | ● | ● | ● | ||
| Backplane wiring | ● | ● | ● | ● | ● | ● | ||
| Inserted | ● | ● | ● | ● | ● | ● | ||
| Coupling plate | ● | ● | ● | ● | ● | ● | ||
| Partition between phases | ● | ● | ● | ● | ● | ● | ||
| Derivative products | Dedicated for prepayment electric meters | ● | ● | ● | ● | ● | ● | |
| Overload alarm without trip | ● | ● | ● | ● | ● | ● | ||
| Overall dimensions (mm) (a-b-c-ca) |
![]() |
4 P | 185-257-105-155 | 280-275-105-155 | ||||
Note:● for optional accessories;”-“for no optional accessories.
Características de Operación
1.The inverse time operating characteristics of power distribution circuit breakers when all poles are energized simultaneously at anambient airtemperature of +40℃(with no humidity compensation)are shown in the following table:
| Test current designation | Setting current multiple | Conventional time | Initial state |
| In≤63 In>63 | |||
| Conventional non-tripping current | 1.05 | ≥1h ≥2h | Cool state |
| Conventional tripping current | 1.3 | <1h<2h | Hot state |
2.The inverse time action characteristics of circuit breakers for motor protection without humidity compensation when all poles areenergizedsimultaneously at an ambient air temperature of +40℃ are shown in the following table:
| Test current designation | Setting current multiple | Conventional time | Initial state |
| In≤800 | |||
| Conventional non-tripping current | 1.0 | ≥2h | Cool state |
| Conventional tripping current | 1.2 | <2h | Hot state |
3.Action characteristics under short-circuit condition:The short-circuit curent setting value of the instantaneous tripper of the circuit breaker forpower distribution is 10In
The short-circuit current setting value of the instaneous tripper of the circuit breaker for motorprotection is 12ln
The accuracy of the short-circuit curent setting value of the instantaneous tripper is 20% of the short-circuit currentsetting value.
CQM6L-125 Operating Characteristic Curve

CQM6L-250 Operating Characteristic Curve

CQM6L-630 Operating Characteristic Curve
CQM6L-800 Operating Characteristic Curve

CQM6L-1250 Operating Characteristic Curve

Outline and Installation Dimensions(mm)

| Molded case circuit breaker |
Overall dimension | Instalación dimensions |
Bolt | |||||||||||||||||||||
| A | A1 | A2 | A3 | B | B1 | B2 | B3 | B5 | B6 | H | H1 | H2 | H3 | H4 | H5 | H6 | A4 | B4 | ||||||
| 3P | 4P | 3P | 4P | 3P | 4P | 3P | 4P | |||||||||||||||||
| CQM6L-160 | – | 120 | – | 90 | – | – | – | – | 155 | 134 | 103 | 50 | 50 | – | 94 | 72 | 4 | 70 | 61 | 41 | 24 | 30 | 132 | M8 |
| CQM6L-250 | – | 140 | – | 105 | – | – | – | – | 165 | 144 | 103 | 50 | 100 | – | 96 | 72 | 4 | 70 | 61 | 46 | 24 | 35 | 126 | M8 |
| CQM6L-630 | – | 185 | – | 132 | – | 196 | – | 168 | 257 | 230 | 179 | 90 | 110 | 42 | 155 | 107 | 5 | 105 | 97 | 64 | 35 | 44 | 194 | M10 |
| CQM6L-800 | – | 280 | – | 210 | – | 250 | – | 210 | 275 | 243 | 192 | 90 | 110 | 87 | 155 | 107 | 5 | 104 | 97 | 65 | 24 | 70 | 242.5 | M12 |
¿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 CQM6L projects, CHAC can review private-label marking, packaging, approved appearance options, published 10–1250A frame range; verify ordered In electrical configurations and technical-document requirements. Requests outside the published range are subject to engineering evaluation, testing, minimum order quantity and project feasibility.
Recinto
Diseño
Tamaños, estructuras y detalles de instalación de recintos personalizados.
Interno
Configuración
Opciones flexibles de diseño interno y disposición de componentes.
Marca e
Logo
Logotipos de marca propia, placas de identificación e identificación de marca.
Empaquetado
Diseño
Soluciones de embalaje, cajas personalizadas, etiquetas y manuales.
Eléctrico
Configuración
Instalación eléctrica adaptada a los requisitos de la aplicación.
Certificación
Apoyo
Soporte para estándares del mercado objetivo y requisitos de cumplimiento.
Descargar
Interruptor automático de caja moldeada serie CQM6
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.
CQM6L Product FAQ
What is the CQM6L MCCB used for?
The CQM6L is specified for overload, short circuit and adjustable earth-leakage protection in AC 400/415V systems within the published 10–1250A frame range; verify ordered In range. Suitability depends on the fault study, conductor coordination, enclosure and local rules.
How does residual-current protection work in the CQM6L?
The residual-current function monitors imbalance associated with earth leakage and trips at the selected sensitivity or delay. The waveform type, threshold, time delay, earthing arrangement and local rules must be confirmed for the exact configuration.
How do I choose the CQM6L rated current and poles?
Start with the design current and conductor calculation, then choose a published current within 10–1250A frame range; verify ordered In and poles from 3P / 4P. Neutral treatment, fault level, ambient conditions and coordination also need review.
What breaking capacity should I check on the CQM6L?
Use the declared C/S/M/H classes up to 75kA, according to frame and ordered configuration for the exact frame, voltage and configuration. The prospective short-circuit current at the installation point must be within the applicable duty; a larger ampere value alone is not a selection rule.
Can the CQM6L replace an MCB or an earth-leakage device?
An MCCB is not automatically a like-for-like replacement. The CQM6L provides overload, short circuit and adjustable earth-leakage protection; residual-current protection, DC interruption, adjustable settings and other functions must be confirmed separately from the project requirement.
How should the CQM6L be installed and tested?
Use only the exact model drawing, terminal identification and accessory instructions. A qualified person should verify isolation, conductor size, torque, clearances, settings, fault duty and functional tests before energising the circuit.
Confirm the Right CQM6L Configuration
Send the frame, rated current, poles, protection function, system voltage, expected fault level, destination market and quantity. CHAC will review the request against the published model range.














