CQB3GQ-80 Series Self-Resetting Over-Under Voltage Protector
The CQB3GQ-80 series self-resetting over/under voltage protector is designed by CHAC Electric to provide reliable voltage protection for single-phase electrical systems. It features a high-speed, low-power microprocessor at its core, coupled with a magnetic latching relay for execution, and adheres to a modular standard design.
Product Features
■ Wide Application Range
Suitable for single-phase AC 230V, 50Hz systems with rated current up to 80A,protecting against neutral line faults.
■ Automatic Recovery Function
Automatically reconnects circuit within specified time (30s±10s) when voltage returns to normal, ensuring continuous operation without manual intervention.
■ Intelligent Voltage Protection
Utilizes high-speed micro low-power processor and magic holding relay to quickly cut off power during over/undervoltage conditions, preventing damage to terminal equipment.
Ordering Specification
1.Product Model: CQB3GQ-80
20Number of Poles: 1P+N
3.Rated Current:40A,63A,80A
4.Quantity: [e.g.: 100 pcs]
Ordering Example:
CQB3GQ-80 1P+N 63A 100 pcs
Type designation
Dimensions(mm)
Technical Specifications
| Parameter | |
| Rated Voltage | AC 230V |
| Rated Frequency | 50 Hz |
| Rated Current | 40A,63A,80A |
| Poles | 1P+N |
| Overvoltage Tripping Value | AC 270V±5V |
| Undervoltage Tripping Value | AC 170V±5V |
| Delay Time | 30s±10s |
| Mechanical & Electrical Life | ≥100,000 operations |
| Terminal Torque | 2-3 Nm |
| Pollution Degree | Level 2 |
| Degree of Protection | IP20 |
| Standard | JB/T12762 |
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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CQB3 Series Miniature Circuit Breaker
Complete product overview for low-voltage electrical components and product selection reference.
Need Technical Documents?
Contact us for datasheets, certificates, drawings, selection guidance or OEM/ODM project support.
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.
