CQL14 Series Electromagnetic Protection Residual Current Device

The CQL14 series residual current device is designed by CHAC Electric to meet the IEC61008-1 standards and is suitable for 230V single-phase or 400V three-phase AC circuits (50/60Hz). It is used in industrial and mining facilities, commercial buildings, and residential settings to prevent electrical fires and electric shock accidents. As a purely electromagnetic leakage protection device, it adopts an auxiliary power-free design and utilizes high-precision current transformers to monitor the vector differential current in real-time. When the leakage current reaches the preset threshold, the electromagnetic tripping mechanism instantly disconnects the faulty circuit within milliseconds. With a compact structure, high reliability, and strong anti-interference capability, its performance remains unaffected by ambient temperature fluctuations or lightning interference, ensuring effective protection against leakage-related hazards.

Categories: Aparatos Eléctricos Terminales, Interruptor diferencial

Product Features

■ Fully Electromagnetic & Highly Reliable

■ Fast Tripping for Safety

■ High Short-Circuit Withstand Capability

■ Broad Compatibility & Flexible Options

■ Standards Compliant & Durable Construction

Type designation

Dimensions(mm)

Technical Specifications

Parameter	Specification
Rated Voltage	230V AC (1P+N); 400V AC (3P+N)
Rated Current (A)	25A, 40A, 63A, 80A, 100A
Rated Residual Operating Current	0.03A, 0.1A, 0.3A
Rated Residual Non-Operating Current	0.5I△n
Type of Residual Current (with DC component)	AC type, A type (In=25, 40, 63A)
Number of Poles	1P+N, 3P+N
Rated Conditional Short-Circuit Current	6000A
Rated Conditional Residual Short-Circuit Current	6000A
Rated Making and Breaking Capacity	500A (In=25, 40A); 10In (63, 80, 100A)
Rated Residual Making and Breaking Capacity	500A (In=25, 40A); 10In (63, 80, 100A)
Tightening Torque	(2.5 ~ 3.0) N·m
Protection Class	IP20
Pollution Degree	2
Installation Category	Ⅱ
Standards	GB 16916.1, IEC61008-1

Operating time (for residual current devices)

In (A)	IΔn (A)	Breaking time when the residual current equals the following values(s)
In (A)	IΔn (A)	IΔn	2IΔn	5IΔn	5A、10A、20A、50A、100A、200A	IΔt
25~100A	0.03、0.1、0.3	0.1	0.05	0.04	0.04	0.04

Mechanical and electrical endurance

In (A)	Number of operating cycles		Operating frequency (cycles per hour)
In (A)	Number of on-load operating cycles	Number of no-load operating cycles	Operating frequency (cycles per hour)
25A	2000	4000	240
40A, 63A, 80A, 100A	2000	4000	120

Why Choose CHAC

With 30+ years of manufacturing experience, 1100+ employees, 100M+ poles
annual capacity and 90% automated production, CHAC provides stable production capacity and strict
quality control for global OEM/ODM customers. Our in-house manufacturing system supports long-term
cooperation for electrical brands, importers and distributors.

30+

YEARS EXPERIENCE

Specialized in low-voltage electrical manufacturing

1100+

EMPLOYEES

Professional team ensures stable quality and delivery

100M+

POLES ANNUAL CAPACITY

Large-scale production capacity to meet global demand

90%

AUTOMATED PRODUCTION

Advanced automation for high efficiency and consistency

Automated Assembly Line

Testing Laboratory

Injection & Stamping

Quality Inspection

Strict quality control system ensures every product meets global standards.

What Can We Customize?

We support customization across branding, packaging, product appearance,
electrical specifications, certification requirements and engineering development. Whether customers
need private label products, market-specific parameters or new product development, CHAC can provide
flexible solutions based on project requirements.

Logo & Branding

Custom logo printing, laser marking and nameplate solutions.

Packaging
Personalización

Customized color boxes, cartons, labels and manuals.

Electrical
Personalización

Current, voltage, breaking capacity, trip curve and other
special functions.

Product
Appearance

Housing color, handle color and appearance customization.

Certification
Support

Products comply with international standards and market
requirements.

Engineering
Development

Drawing evaluation, prototype testing and mass production.

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Frequently Asked Questions

¿Admite la personalización de productos según nuestros requisitos de diseño?

A1:Absolutely. We specialize in OEM and ODM cooperation in the low-voltage electrical field and have provided customized services for many internationally renowned companies. We offer full-process support, including R&D design, parameter adjustments, and special material selection, ensuring the product fully meets your requirements.

P2: ¿Cuál es tu capacidad de producción y Cantidad Mínima de Pedido (MOQ)?

A2: We operate a highly automated production base with an annual output of over 100 million poles for miniature circuit breakers. Our MOQ policy is flexible. We can provide competitive trial orders for small batches and dedicated production capacity guarantee plans.

P3: ¿Qué garantías hay sobre la calidad del producto y las certificaciones?

A3: Our main products are certified with CCC, CE, CB, and more, and are sold in over 30 countries and regions worldwide. The company has established a dedicated Quality Operations Center that works with the business and production departments to implement full-process quality control, ensuring products meet international standards.

Q4: Do you have the capability for product R&D and turning concepts into reality?

A4: We have a complete R&D team and digital workshops, backed by extensive customization experience serving numerous international clients. From concept proposal and sample development to mass production, we provide end-to-end technical support to help bring your ideas to life.