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Mini Circuit Breaker(MCB)
HTB3-80 MCB (mini circuit breaker)
It is built in the same factory as Hantu Electric’s smart breakers, enabling buyers to source conventional and smart...
Product Overview
What This Model Does
It is built in the same factory as Hantu Electric’s smart breakers, enabling buyers to source conventional and smart versions from one supplier.
Key Benefits
- Provides reliable overload and short-circuit protection for single-phase and three-phase circuits
- Type C trip characteristic suitable for inductive loads like motors and transformers
- Mechanical operation is independent of power or network, ensuring protection always functions
Who It Is For
- Electrical wholesalers stocking conventional MCBs alongside smart versions
- Panel builders integrating breakers into switchgear and control cabinets
- Switchgear assemblers building distribution boards for commercial or industrial use
- Solar EPC contractors installing breakers in solar inverters and combiner boxes
- OEM/ODM buyers sourcing a standard MCB for integration into their own systems
Problems It Solves
- A conventional breaker is needed in a panel but the site lacks smart control
- A panel builder must source multiple breaker types from different suppliers
- An installer needs a consistent trip characteristic across all breakers in a board
- A buyer wants to maintain a single BOM for both conventional and smart breakers
Application Scenarios
- Residential distribution boards where multiple circuits need overload protection
- Commercial buildings with three-phase power feeding lighting, HVAC, and office equipment
- Industrial control panels using three-phase motors and control circuits
- New construction projects requiring consistent MCBs across multiple units
- Panel builders integrating multiple breakers into a single distribution board
Technical Features
How It Is Built
- Type C instantaneous trip characteristic for inductive load protection
- Thermal-magnetic trip mechanism for overload and short-circuit protection
Materials and Construction
- Silver-alloy contacts with a thermal-magnetic trip mechanism
- Internal components made from high-grade insulating and conductive materials
Quality Control
- Insulation and dielectric withstand test performed before packing
- Visual and functional inspection of each unit before shipment
Specifications
Stated Ratings for This Model
| Instantaneous Trip Type | C |
|---|---|
| Trip Mechanism | Thermal-magnetic |
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: Standards Compliant, Rated Voltage, Frequency, Rated Current, Rack Rated Current, Rated Short-circuit Breaking Capacity, Rated Impulse Withstand Voltage, Protection Level, Specified Use Temperature, Mechanical Life, Electrical Life, Mounting.
Manufacturing Process
- Moulding and machining of the breaker housing and internal carriers
- Assembly of the thermal-magnetic trip unit and contact system
- Calibration of the trip characteristic against the Type C curve
- Routine dielectric and operation testing before packing
- Final inspection and packaging for shipment
Customization Options
- ODM branding on housing print and packaging
- Packaging and carton marking to the buyer's own specification
Comparison
How It Compares
| Conventional MCB with no smart features | Same protection and installation, but lacks remote control and automation |
|---|---|
| MCB with separate timer and contactor | One device instead of three, though switching logic then lives in the app rather than in the panel |
| Zigbee smart MCB | Connects straight to WiFi with no gateway, but depends on the site router being up |
Use Guide
- Switch on manually and confirm the breaker holds under normal load before use
- Verify the trip characteristic matches the Type C curve for inductive loads
- Ensure the breaker is rated for the circuit current and voltage of the application
- Keep the manual handle accessible so the circuit can always be isolated on site
- Replace the breaker if it trips repeatedly without a fault condition
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FAQ
Questions About the HTB3-80 MCB (mini circuit breaker)
Does it still protect the circuit if the power is off
Yes. Overload, short-circuit and isolation protection are mechanical and work independently of power or network. Only remote control needs a connection.
Can we have it supplied under our own brand
Yes. We run ODM projects and can print your branding on the housing and packaging. Send us your artwork and the current ratings you need.
What are the minimum order quantity and lead time
Both depend on the current ratings and branding you need. Email [email protected] with your model list and quantities for a current answer.
How do we get a price for this model
Email [email protected] with the rated current, pole count and quantity you need and we will quote this model directly.
Can this be supplied under our own brand
Yes. We run ODM projects and can print your branding on the housing and packaging.
Which documents can you supply for this model
Datasheets, specification sheets and any certification files held for the model are sent by email on request.
Get a Quotation for the HTB3-80 MCB (mini circuit breaker)
Tell us the ratings, pole counts and quantities you need and we will price this model directly.