YICHOU Air Circuit Breaker ACB Series
At a Glance
Product Name YICHOU Series Intelligent Air Circuit Breaker
Frame Size 630A 6300A
Poles 3P 4P
Breaking Capacity 50kA 120kA Icu
Ics 100 of Icu Full Range
Icw 50kA 1s 85kA 1s
Standards Compliance IEC 60947 2 2024 GB T 14048 2
Protection Degree IP40 Body IP54 Front Panel
Operating Temperature 25C to +70C Derating Free up to 55C
Communication Protocols Modbus Profibus Ethernet IP IEC 61850
Mounting Type Draw out Fixed
Operation Mode Manual Motorized
In Stock Global Certifications Technical Support Fast Delivery
Contact Technical Expert Download Technical Catalog Request Quotation
Why Choose YICHOU ACB
Solving Your Critical Challenges
Your Pain Point | YICHOU Solution
High Cost of Downtime | 100 Ics ensures no replacement after faults Icw 50kA 1s enables full selectivity prevents blackouts
Limited Maintenance Budget | Self diagnostics contact wear indication enable predictive maintenance reduce OandM costs by 50
International Compliance Pressure | Fully certified to IEC 60947 2 2024 latest standard worry free global projects
Smart Grid Integration Requirements | Supports Modbus Profibus Ethernet IP IEC 61850 with built in cybersecurity IEC 62443 4 2
Heat and Energy Loss Concerns | Silver alloy contacts optimized busbar design power loss below 380W per pole 2000A saves thousands in electricity annually
Field Installation Challenges | Modular accessory design plug and play on site no factory modification needed
Technical Specifications
Frame Size Selection
Model | Frame Current A | Poles | Dimensions W H D mm | Application
YICHOU ACB 63 | 630 1600 | 3P 4P | 320 420 280 | Small substations commercial buildings
YICHOU ACB 25 | 2000 2500 | 3P 4P | 420 470 320 | Data centers industrial plants
YICHOU ACB 40 | 3200 4000 | 3P 4P | 520 520 360 | Large factories mining sites
YICHOU ACB 63H | 5000 6300 | 3P 4P | 620 620 420 | Power stations heavy industry
Breaking Capacity Details
Model | Icu kA | Ics of Icu | Icw kA 1s | Suitable Transformer
YICHOU ACB 63 Standard | 50 | 100 | 50 | up to 1600 kVA
YICHOU ACB 63H High Break | 66 | 100 | 66 | up to 2000 kVA
YICHOU ACB 25 Standard | 65 | 100 | 65 | up to 2500 kVA
YICHOU ACB 25H High Break | 85 | 100 | 65 | up to 3150 kVA
YICHOU ACB 40 Standard | 80 | 100 | 75 | up to 4000 kVA
YICHOU ACB 40H High Break | 100 | 100 | 75 | up to 5000 kVA
YICHOU ACB 63H Ultra High | 120 | 100 | 85 | above 6300 kVA
Intelligent Trip Unit
Three Levels of Intelligence
Feature | Basic MR | Standard ER | Flagship PR
LSIG Protection | LSI | LSIG | LSIG Programmable
THD Measurement | No | Yes | Yes
Power Factor | No | Yes | Yes
Energy Metering | No | Basic | High Precision Time of Use
Waveform Capture | No | No | Yes
Event Log | 10 records | 50 records | 200 records
Contact Wear Monitoring | No | Yes | Yes
Temperature Monitoring | No | Optional | Yes
Cybersecurity IEC 62443 | No | Optional | Yes
Communication Protocols | Modbus | Modbus Profibus | All Protocols IEC 61850
LSIG Protection Functions
Protection | Description | Adjustment Range
L Long Time | Overload protection thermal simulation | Ir 0 4 1 0 x In
S Short Time | Short circuit with time delay for selectivity | Isd 1 5 10 x Ir
I Instantaneous | Instantaneous short circuit protection | Ii 2 15 x In
G Ground Fault | Ground fault protection prevents electric shock fire | Ig 0 2 0 8 x In
Installation and Maintenance
Draw out Design Advantages
Feature | Benefit
Three Position Indication | Clear Connect Test Disconnect positions prevents misoperation
Safety Interlock | Prevents insertion withdrawal with load
Shutter Protection | Automatically covers busbar contacts when breaker removed ensures personnel safety
High Interchangeability | Same specification units interchangeable reduces spare part inventory
Maintenance Intervals
Operations | Recommended Action | Smart Alert
0 1000 | Routine inspection | Auto recorded
1000 3000 | Check contact wear | Wear indication
3000 5000 | Inspect arc chamber | System reminder
above 5000 | Major overhaul replacement | Mandatory alert
Certifications and Compliance
Certification | Standard | Market
CB | IEC 60947 2 | International
CE | Low Voltage Directive | European Union
UKCA | BS EN 60947 2 | United Kingdom
UL | UL 1066 Select Models | North America
CCC | GB T 14048 2 | China
EAC | TR CU 004 2011 | Russia Belarus Kazakhstan
Applications
Data Centers
Requirement 100 selectivity high reliability intelligent monitoring
Recommendation YICHOU ACB 25H plus PR Controller plus IEC 61850 Communication
Case Study Major cloud data center 3000A main incoming zero downtime
Industrial Plants
Requirement High breaking capacity harsh environment adaptability
Recommendation YICHOU ACB 40H plus ER Controller plus Pollution Degree 3 Protection
Case Study Automotive manufacturing plant welding shop stable operation under harmonic conditions
Commercial Buildings
Requirement Cost effectiveness easy installation simple maintenance
Recommendation YICHOU ACB 63 plus MR Controller plus Fixed Mounting
Case Study Super high rise office building vertical shaft compact design saves space
Renewable Energy
Requirement DC applications frequent operations solar energy storage
Recommendation YICHOU DC Series ACB plus High frequency operation design
Case Study 100MW energy storage project bidirectional protection millisecond response
Competitor Comparison
Parameter | YICHOU ACB | Schneider MTZ | ABB Emax 2 | Siemens 3WL | Chint NA8
Ics of Icu | 100 Full Range | 100 Selected | 100 | 100 | 75 to 100
Icw 4000A | 75kA 1s | 75kA 1s | 75kA 1s | 75kA 1s | 50kA 1s
Derating Free Temp | 55C | 50C | 50C | 50C | 40C
Cybersecurity | IEC 62443 | Optional | Optional | Optional | No
IEC 61850 | Standard Flagship | Optional | Optional | Optional | No
Contact Wear Monitor | Standard | Standard | Standard | Standard | No
Price Index | Medium | High | High | High | Low
Delivery Time | 2 to 4 Weeks | 6 to 8 Weeks | 6 to 8 Weeks | 8 to 10 Weeks | 3 to 4 Weeks
YICHOU Advantages Summary
Same Performance Better Value 20 to 30 percent lower price than tier 1 brands
Faster Delivery Stock available 2 weeks global delivery
Better Temperature Adaptability 55C derating free ideal for tropical Middle East markets
Cybersecurity Standard Not an option it is standard
Packaging and Delivery
Item | Details
Standard Packaging | Wooden case shock proof foam moisture proof bag suitable for sea freight
Accessory Packaging | Individually packed clear labeling easy field distribution
Included Documents | Factory test report certificate of conformity manual installation drawings
Delivery Time | Standard 2 weeks Custom 4 to 6 weeks
Shipping Methods | Sea Air Express DDP DAP FOB terms available
MOQ | 1 unit sample orders welcome
Technical Support and Service
Pre sales Support
Free technical consultation and selection assistance
Drawing review and system design support
Site survey and load analysis
After sales Service
18 months warranty
24 7 technical hotline plus WeChat WhatsApp support
Global service network 48 hour response
Free training online on site
Technical Support Contacts
Phone 86 Your Number
Email sales at yichou electric com
WhatsApp WeChat 86 Your Number
Online Chat Website live chat
Frequently Asked Questions
Q Is YICHOU ACB suitable for high temperature environments
A Yes our ACB operates from 25C to +70C and is derating free up to 55C ideal for Middle East Southeast Asia Africa and other hot regions
Q How to choose between draw out and fixed type
A For critical circuits requiring frequent maintenance or backup main incoming important feeders choose draw out For cost sensitive or space limited general circuits fixed type is more economical
Q Can the intelligent controller be upgraded later
A Yes Our controllers are modular Basic can be field upgraded to Standard or Flagship simply replace the control unit no need to replace the entire breaker
Q Are communication protocols open
A Yes We provide standard Modbus RTU protocol fully open Profibus Ethernet IP IEC 61850 require optional communication modules with complete protocol documentation provided
Q What is the delivery time
A Standard products 630A to 4000A are in stock ship within 2 weeks Special specifications or high current 5000A and above require 4 to 6 weeks production
Q Do you offer OEM ODM services
A Yes We accept brand customization front panel customization special parameter customization MOQ negotiable based on project
Customer Testimonials
We chose YICHOU ACB for a Middle East data center project Stable operation at 55C intelligent monitoring seamlessly integrated with our BMS system Price is 25 percent lower than European brands with comparable performance
Ahmed Al Farsi Electrical Manager UAE EPC Company
The delivery speed was impressive We urgently needed a replacement breaker YICHOU shipped within 5 days a month faster than the original brand
Zhang Gong Facility Manager Semiconductor Factory
The technical training was excellent Our local engineers can now handle parameter setting and maintenance independently After sales response is fast truly worry free
Carlos Mendez Technical Director Mexican Panel Builder
Special Offers
Offer | Details
New Product Trial | 10 percent off first order valid until June 2026
Sample Support | 7 day free trial full refund if not satisfied
Volume Discount | Extra discount for 10 plus units tiered pricing for 50 plus units
Free Training | 1 day on site training for orders of 10 plus units
Extended Warranty | 3 year warranty at plus 10 percent price standard 18 months extended to 3 years
Inquire About Special Offers
Take Action Now
Three Easy Steps to Purchase
1 Consultation Contact our engineers with your load parameters and application
2 Quotation Receive detailed quotation and technical proposal within 24 hours
3 Order Confirmation Global delivery within 2 weeks
Contact | Service Hours
Phone 86 Your Number | Monday to Friday 9 00 to 18 00 Beijing Time
Email sales at yichou electric com | Response within 24 hours
WhatsApp WeChat 86 Your Number | Real time online
Website www yichou electric com | 24 7 self service
Resources
Resource | Format | Language | Download
Product Catalog Full Version | PDF | EN CN ES AR | Download
Technical Manual Selection Guide | PDF | EN | Download
Technical Manual Installation | PDF | EN | Download
Certificate Collection | PDF | Multi Language | Download
CAD Drawings 2D 3D | DWG STEP | | Download
Communication Protocol Manual | PDF | EN | Download
Application Case Studies | PDF | EN | Download
About YICHOU Electric
YICHOU Electric is a manufacturer specializing in low voltage electrical equipment with 20 years of industry experience Products are exported to over 50 countries We are committed to providing high reliability cost effective power distribution solutions to global customers
Headquarters Shanghai China
Factory Wenzhou Zhejiang 20000 square meters production base
Certifications ISO 9001 ISO 14001 ISO 45001
R and D 30 plus engineers 8 percent annual R and D investment
Production Capacity 100000 units annually supporting large scale projects
Our Mission Reliable Power Protection for Every Project
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