CQB3GQ-80 Series Self-Resetting Over-Under Voltage Protector
Le CQB3GQ-80 is specified for over/under-voltage disconnection with automatic reconnection. Select it using the published voltage, current, pole and protection data, then confirm conductor coordination, fault conditions, enclosure requirements and local installation rules.
Product Overview
CQB3GQ-80 is a self resetting voltage protector for 230V or 230/400V AC applications. It is intended for single-phase or terminal-equipment circuits exposed to supply-voltage abnormalities; this describes an evaluation context, not a universal approval. Confirm the complete circuit design before specifying the product.
over/under-voltage disconnection with automatic reconnection is distinct from adjacent protection functions. Do not infer AC/DC suitability, residual-current protection, automatic control or isolation performance from the product family name alone.
Key Features
Typical Applications
single-phase or terminal-equipment circuits exposed to supply-voltage abnormalities. Verify system voltage, expected fault current or leakage, wiring arrangement, environment, coordination and applicable rules for the ordered configuration.
Applications and Selection Guide
Use the verified CQB3GQ-80 records below to create a shortlist. Product labels do not replace the project calculation, coordination review or exact installation instructions.
| Selection point | CQB3GQ-80 reference | What the project must confirm |
|---|---|---|
| Rated current | Use the exact model table | Design current, conductor capacity, ambient and grouping |
| Voltage and frequency | 230V or 230/400V AC | Supply system and equipment rating |
| Pôles | 1P+N, 2P or 4P as listed | Conductors to be switched, protected or isolated |
| Protection / control | over/under-voltage disconnection with automatic reconnection | Required function and adjacent-device coordination |
| Fault / residual data | Thresholds and delay are model-specific; see the technical table | Prospective short-circuit or leakage conditions |
Voltage Protection and Reconnection
Over/under-voltage devices disconnect when thresholds are reached and may reconnect after a delay. Confirm thresholds, delay, neutral arrangement and downstream load behaviour.
Voltage Quality
Confirm Settings →
Model-Specific Ratings
Use the exact technical table for rated voltage, current, poles, terminals, life and environmental limits.
Verified Data
View Technical Support →
Installation and Coordination
Check the complete circuit, conductor sizing, fault or leakage conditions, enclosure and local rules before energising.
Engineering Check
Discuss a Configuration →
Ordering Information
State model, rating, poles, system, quantity, destination market and document requirements so the configuration can be reviewed.
Project Inputs
Send Project Details →
Ordering Guide
- State the exact model: CQB3GQ-80.
- Provide rated current and voltage from the published technical table.
- Confirm poles and the required protection, isolation or control function.
- Provide application, expected fault/leakage conditions, destination market and quantity.
- List accessory, terminal, documentation and approved marking or packaging requirements.
Installation and Coordination Checks
- Use the exact model drawing and instructions; do not infer wiring or accessory compatibility from another product.
- Verify conductor size, terminal torque, enclosure conditions, temperature, grouping and clearances.
- Coordinate upstream and downstream devices and confirm the required fault, leakage or voltage response.
- Installation, testing and maintenance must be completed by qualified personnel under applicable rules.
Type designation
Dimensions(mm)
Technical Specifications
| Parameter | |
| Rated Voltage | AC 230V |
| Rated Frequency | 50 Hz |
| Rated Current | 40A,63A,80A |
| Pôles | 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?
For CQB3GQ-80 projects, CHAC can review private-label marking, packaging, approved appearance options and the published electrical configurations. Requests outside the published range require engineering evaluation, testing and feasibility review.
Logo & Branding
Custom logo printing, laser marking and nameplate solutions.
Packaging
Personnalisation
Customized color boxes, cartons, labels and manuals.
Electrical
Personnalisation
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.
Télécharger
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Need Technical Documents?
Contact us for datasheets, certificates, drawings, selection guidance or OEM/ODM project support.
CQB3GQ-80 Product FAQ
What is the CQB3GQ-80 used for?
The CQB3GQ-80 is specified for over/under-voltage disconnection with automatic reconnection in 230V or 230/400V AC applications, within the ratings and configurations listed in its technical table. Final suitability depends on the complete circuit design.
When does the CQB3GQ-80 reconnect after a voltage fault?
The reconnect delay is model-specific and is listed in the technical table. Confirm the documented threshold and delay, neutral arrangement and whether automatic reconnection is acceptable for the connected load.
How do I choose the CQB3GQ-80 rating and poles?
Start with the design current and system arrangement, then choose only a published option. The page lists pole options as 1P+N, 2P or 4P as listed; confirm neutral, polarity, conductors and isolation requirements.
What safety limitation applies to the CQB3GQ-80?
Do not treat the CQB3GQ-80 as a universal substitute for another device. Confirm Thresholds and delay are model-specific; see the technical table, the system voltage, fault or leakage conditions and any separate upstream protection before selection.
Can the CQB3GQ-80 be used in another circuit type?
Only when the exact ordered configuration is rated for that circuit. AC and DC duties, residual-current devices, isolators, smart controls and voltage protectors are not interchangeable by appearance or current rating.
How should the CQB3GQ-80 be installed and tested?
Use the exact product drawing, terminal identification and instructions. A qualified person should verify isolation, conductors, torque, settings, coordination and functional tests before energising the circuit.
Confirm the Right CQB3GQ-80 Configuration
Send the model, rating, poles, system voltage, application, quantity and document requirements. CHAC will review the request against the published data.
