CQMG03 Series Distribution Junction Box Connection Solutions
The CQMG03 Series Distribution Junction Box Connection Solutions is a CHAC distribution junction box for bus and terminal connection. The page keeps the model-specific technical table and original product images so buyers can verify voltage, current, configuration, mounting and applicable standards before ordering. Final suitability depends on the complete circuit, installation method and destination-market rules.
Product Overview
CQMG03 Series Distribution Junction Box Connection Solutions is a distribution junction box intended for bus and terminal connection. The current product record identifies it for distribution panels and industrial control equipment. Use the exact model variant and preserved technical source as the basis for procurement rather than assuming that every family member has the same rating.
Verified source summary: Dimensions(unit:mm) ltem b(mm) CQMG03-207 65 CQMG03 -215 132 ltem b(mm) CQMG03-407 65 CQMG03-411 100 CQMG03-415 132 ltem b(mm) CQMG03 -411(160A) 167 Technical data Specifications Rated insulation voltage Ui(V) 500 Rated current le(A) 125/160 Frequency(Hz) 50 Rated short-time withstand current lcw(kA) 4.5 Rated peak withstand current lpk(kA) 20 Model Conductive row number Terminal Number of Single Conductive Row CQMG0
Key Features
Typical Applications
Typical use can include distribution panels and industrial control equipment when the project confirms system voltage, current, fault or surge exposure, conductor and enclosure requirements, and the selected variant’s installation instructions. This page does not replace the project design or the authority having jurisdiction.
Applications and Selection Guide
Use the following decision points with the preserved model data. Product-family descriptions explain intent, but the exact technical table controls the ordered variant.
| Selection point | CQMG03 Series Distribution Junction Box Connection Solutions | What the project must confirm |
|---|---|---|
| Application | Junction Box projects | Confirm the actual system and environment |
| Selection basis | bus and terminal connection | Use the exact model and technical table |
| Installation | Follow the model instructions | Check mounting, clearances and termination |
| Compliance | Use the listed standard where applicable | Verify edition, scope and destination rules |
| Adjacent product | Evaluate the related CHAC family where function differs | Do not substitute without engineering review |
Function
bus and terminal connection
Match the protection or switching function to the system.
Configuration
Model-specific options
Confirm current, voltage, poles, terminals or accessories from the table.
Installation
Mechanical and electrical fit
Check enclosure, mounting, wiring space and maintenance access.
Project evidence
Documents and test records
Retain the approved drawing, technical sheet and commissioning record.
Ordering Guide
- State the exact model and variant.
- Provide the system voltage, current, frequency and load or protection function.
- Confirm mounting, terminals, accessories, enclosure and environmental conditions.
- Share quantity, destination market and required technical documents.
Installation and Coordination Checks
- Verify the model’s ratings and connection arrangement against the project drawings.
- Check conductor, busbar, enclosure, clearances and tightening requirements using the product documentation.
- Coordinate upstream and downstream protection or control devices where applicable.
- Use qualified personnel for installation, testing, isolation and maintenance.
Dimensions(unit:mm)

| ltem | b(mm) |
| CQMG03-207 | 65 |
| CQMG03 -215 | 132 |

| ltem | b(mm) |
| CQMG03-407 | 65 |
| CQMG03-411 | 100 |
| CQMG03-415 | 132 |

| ltem | b(mm) |
| CQMG03 -411(160A) | 167 |
Technical data
| Specifications | |
| Rated insulation voltage Ui(V) | 500 |
| Rated current le(A) | 125/160 |
| Frequency(Hz) | 50 |
| Rated short-time withstand current lcw(kA) | 4.5 |
| Rated peak withstand current lpk(kA) | 20 |
| Model | Conductive row number | Terminal Number of Single Conductive Row |
| CQMG03-207 | 2 | 7 |
| CQMG03-215 | 2 | 15 |
| CQMG03-407 | 4 | 7 |
| CQMG03-411 | 4 | 11 |
| CQMG03-415 | 4 | 15 |
| CQMG03-411(160A) | 4 | 11 |
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?
Flexible customization services are available for enclosure dimensions, component configuration,
branding and project requirements.
Enclosure
Design
Customized enclosure sizes, structures and installation details.
Internal
Configuration
Flexible internal layout and component arrangement options.
Branding &
Logo
Private label logos, nameplates and brand identification.
Packaging
Design
Custom cartons, labels, manuals and packaging solutions.
Electrical
Configuration
Tailored electrical setup based on application requirements.
Certification
Support
Support for target-market standards and compliance requirements.
Download
Other Products
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.
CQMG03 Product FAQ
What does the CQMG03 junction box do?
It provides bus and terminal connection for the distribution circuit described by the product record. Confirm current, voltage and terminal arrangement.
How do I select the terminal layout?
Use the number of conductors, busbars, outgoing circuits, cable sizes and maintenance space, then match the published model table.
What current range is published?
The record identifies 125A/160A variants. Confirm the exact model, conductor arrangement and installation conditions rather than applying one value to every version.
Can it be used in industrial control equipment?
The page identifies distribution and electrical-equipment applications. Verify enclosure, ambient, short-time withstand and wiring requirements for the actual panel.
What should be checked during installation?
Confirm insulation, clearances, terminal torque, conductor support, labeling and access for inspection.
Which documents should be requested?
Ask for the applicable dimensional drawing, technical table, wiring guidance and verified compliance information for the ordered variant.
Confirm the Right CQMG03 Configuration
Send the exact model, operating conditions, quantity, destination market and required documents. CHAC will review the request against the published product data.














