Mini Circuit Breaker(MCB)
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Mini Circuit Breaker(MCB)
DZ47 Mini Circuit Breaker
The DZ47 Mini Circuit Breaker is a compact, reliable MCB designed for AC 50/60Hz circuits with rated voltages up to...
Product Overview
What This Model Does
The DZ47 Mini Circuit Breaker is a compact, reliable MCB designed for AC 50/60Hz circuits with rated voltages up to 230V/400V and rated currents from 6A to 63A. It provides overload and short-circuit protection in residential, office, and light industrial applications. Built to IEC60898 and GB10963.1 standards, it features a high-breaking capacity of 6000A for rated currents up to 40A and 4500A for 50A and 63A. The breaker is available in 1P, 2P, 3P, and 4P configurations with B, C, or D trip characteristics. It is suitable for use in distribution boards, lighting circuits, socket outlets, and motor starting applications.
Key Benefits
- Compact size with high breaking capacity for space-constrained panels
- Reliable mechanical and thermal-magnetic protection for overloads and short circuits
- Available in B, C, and D trip characteristics to match different load types
- Complies with IEC60898 and GB10963.1 for global compliance and interoperability
- Suitable for frequent switching under normal conditions without degradation
- High fire-resistant and shockproof plastic housing improves safety and durability
Who It Is For
- Electrical wholesalers stocking conventional MCBs for residential and commercial markets
- Panel builders integrating MCBs into distribution boards and control cabinets
- Switchgear assemblers requiring standard-compliant protection devices
- Solar EPC contractors using MCBs in inverter and distribution panels
- OEM/ODM buyers sourcing standard MCBs for branded electrical systems
Problems It Solves
- A circuit trips due to overload or short circuit and requires manual reset without remote access
- A panel lacks protection for a new lighting or power circuit during installation
- A motor starter circuit lacks reliable overload protection under variable load
- A distribution board uses outdated or non-compliant breakers that fail safety checks
- A project needs a standard MCB with consistent performance across multiple units
- A buyer needs a compact, reliable breaker that fits in tight panel spaces
Application Scenarios
- Residential distribution boards for lighting and socket circuits
- Office buildings with multiple lighting and power circuits needing protection
- Light industrial control panels for motor starting and equipment protection
- Socket outlets in commercial kitchens and retail spaces
- Industrial plants with low-voltage distribution circuits requiring reliable protection
- Electrical hand tools and portable equipment connected via protected circuits
Technical Features
How It Is Built
- Rated voltage AC 230V/400V at 50/60Hz for single-phase and three-phase circuits
- Rated current from 6A to 63A with 1P, 2P, 3P, and 4P pole options
- Trip characteristics available in B, C, and D types for different load profiles
- Rated short-circuit breaking capacity of 6000A for In ≤ 40A and 4500A for In = 50A/63A
- High fire-resistant and shockproof plastic housing with IP20 protection
- Suitable for unfrequent switching under normal operating conditions
- Designed for use in buildings, offices, homes, and similar installations
Materials and Construction
- PA66 high fire-resistant and shockproof plastic for housing and internal components
- Silver-alloy contacts for low contact resistance and long life
- Thermal-magnetic trip mechanism for overload and short-circuit protection
Quality Control
- Trip characteristic verified against B, C, and D curve specifications
- Short-circuit breaking capacity tested at rated values for each current rating
- Final visual and functional inspection before packaging
Specifications
Stated Ratings for This Model
| Standards Compliant | IEC60898, GB10963.1 |
|---|---|
| Rated Voltage | AC 230V/400V |
| Rated Frequency | 50/60Hz |
| Number of Poles | 1P, 2P, 3P, 4P |
| Rated Current | 6A, 8A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A |
| Trip Characteristic | B, C, D |
| Rated Short-circuit Breaking Capacity | 6000A (In ≤ 40A), 4500A (In = 50A/63A) |
| Material | PA66 |
| Color | White |
| Rated Voltage | 230V |
Ratings are as published for this model. Where a value is not published we mark it TBC rather than estimating it.
Values that could not be confirmed against the published catalogue text for this model are marked TBC and confirmed by email before order: Mechanical Life, Electrical Life, Supply Capacity.
Manufacturing Process
- Moulding of PA66 housing and internal carriers on injection moulding machines
- Assembly of thermal-magnetic trip unit and contact system
- Installation of terminal blocks and connection of internal wiring
- Calibration of trip characteristic against B, C, or D curves
- Routine dielectric and mechanical operation testing before packing
Customization Options
- ODM branding available on housing and packaging
- Pole count and current rating selected per order
- Packaging and carton marking to buyer’s specification
- Custom colour options available upon request
Comparison
How It Compares
| Conventional MCB from another supplier | Same protection function but built to IEC60898 and GB10963.1 with consistent performance across batches |
|---|---|
| MCB with lower breaking capacity | Higher 6000A breaking capacity for In ≤ 40A improves safety in high fault current environments |
| MCB without B/C/D options | Trip characteristic selection allows better matching to motor or inductive loads |
| Smart MCB with IoT features | Lower cost and simpler operation for applications that do not require remote control |
Use Guide
- Connect the live and neutral conductors to the input and output terminals
- Ensure the rated current matches the circuit load and cable size
- Select the correct trip characteristic (B, C, or D) based on load type
- Switch on manually and confirm the breaker holds under normal load
- Test the trip function using a test button if available, or with a known fault condition
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FAQ
Questions About the DZ47 Mini Circuit Breaker
What trip characteristics are available
B, C, and D types are available to suit different load types such as lighting, motors, and inductive equipment.
What is the rated short-circuit breaking capacity
6000A for rated currents up to 40A, and 4500A for 50A and 63A.
Can it be used in three-phase circuits
Yes, 3P and 4P versions are available for three-phase AC 400V circuits.
Is it suitable for motor starting applications
Yes, the C and D trip characteristics are suitable for motor starting and inductive loads.
Can we have it supplied under our own brand
Yes. We support ODM projects and can print your branding on the housing and packaging. Send your artwork and required ratings.
What is the supply capacity
The factory can supply up to 20,000 pieces per month.
What are the minimum order quantity and lead time
Both depend on the current ratings, pole count, and branding. Email [email protected] with your model list and quantities for a current answer.
Get a Quotation for the DZ47 Mini Circuit Breaker
Tell us the ratings, pole counts and quantities you need and we will price this model directly.