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MCB1920X822_02
Miniature Circuit Breaker’s job: On-off control + Fault protection
Normal: Conductive parts pass power
Fault: Protection triggers, breaks circuit in 0.01-1s!

Key Scenarios
1. Normal Operation
Handle "ON" → Latch locks contacts, spring stores energy
Current: Terminal → Fixed contact → Moving contact → Terminal
2. Overload Protection
Overload bends bimetallic strip
Latch releases → Contacts separate
Arc extinguished by grid → Reset handle post-fix
3. Short-Circuit Protection
Short-circuit = Coil activates armature
Contacts separate (<0.1s!) → Arc device puts out arcs
未标题-5
 
 
 
 
 
 
 
 
4. Leakage Protection (High-End)
Leakage → Transformer detects current difference
Triggers tripping → Test button verifies function
5. Manual Control
Open: Handle "OFF" → Contacts separate
Close: Handle "ON" → Contacts lock Core Component Tips
Bimetallic Strip: Timely overload trip
Arc Grid: 0.5-1mm spacing = fast arc extinction
Silver Contacts: ≥85% Ag = low resistance + anti-welding
Leakage Transformer: Detects ≥30mA → Trip in 0.1s
MCB 101: Core Component Synergy
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About Component

MCB (Miniature Circuit Breaker) 
Parts
We are committed to providing customers with one-stop solutions, covering a full range of component integration solutions including spot welding, assembly, riveting, and more.
760x956-1 Container House
760x956-3 Solar Photovoltaic
760x956-2 Ev Charging
Customized Solutions
The company has independent production capabilities for plastic and metal parts, and processes them into various electrical components using advanced manufacturing processes.
We Have Very Rich Experience For Various Scenarios
Application Scenarios Of Our Products
Power Distribution
Power distribution and circuitprotection in home, commercial andindustry. Over 30 years richexperience from thousands ofelectricians use, we improve productdetails and performance always.
Intelligent System
Unattended monitoring shop,Advertising system control, Remotecontrol equipment and monitoring ofelectricity consumption, Rental
housing cost control system, Remoteunmanned irrigation in agriculture
Ev Charging
We provide charging pile systems formany well-known electric vehiclecompanies around the world, circuitprotection equipment and chargingpiles for private household electricvehicle companies
Solar Photovoltaic
Our solar system power distributiohprotection system is well recognizedby customers in Australia, Africa,Vietnam, Philippines, Saudi ArabiaDubai, Syria, Lebanon, Thailand,
India.
We believe that through our manufacturing strengths and service commitment, we are able to provide our customers with superior products and an unparalleled service experience.​​​​​​​
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