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China W1 ACB intelligent universal circuit breaker Supplier, Companies
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China W1 ACB intelligent universal circuit breaker Supplier, Companies

China W1 ACB intelligent universal circuit breaker Supplier, Companies

The W1 ACB Intelligent Universal Circuit Breaker safeguards 50Hz distribution networks up to 690V/6300A, providing comprehensive protection against overload, short-circuit, undervoltage and ground faults. This intelligent universal circuit breaker features precision selective tripping to maximize uptime, with 8000V impulse withstand (adjustable to 12000V for high altitudes). The W1 ACB supports "four remote" operations via open communication interfaces for seamless SCADA integration. Designed as both protector and isolator (GB14048.2/IEC60947-2 compliant), it delivers reliable performance in industrial power systems without requiring additional controllers.

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Product Description

Type Designation
Type Designation
1Enterprise code
2Universal circuit breaker
3Design serial number
4Rated current of circuit breaker frame level
5Number of poles: 4-pole marked as 4, no marking for 3-pole
Product Display
Display 1
Display 2
Display 3
Display 4
Display 5
Display 6
Product Structure Diagram
Structure 1

Secondary Circuit Terminal

Close Button

Trip Button

Manual Energy Storage Handle

Close/Trip Position Indicator

Energy Storage and Release Indicator

Front Panel

In/Out Device

Position Indicator

Hand Crank and Its Storage

Structure 2

Secondary Circuit Terminal (Fixed)

Drawer Chassis

Safety Barrier

Secondary Circuit Terminal (Movable)

Auxiliary Contact

Shunt Release

Under voltage Release

Closing Electromagnet

Operating Mechanism

Motorized Smart Mechanism

Intelligent Controller

Front Panel

Technical Parameters
Category 2000A Frame 3200A Frame 4000A Frame 6300A Frame
Rated Current (A)200-20002000-32003200-40004000-6300
Total Operating Cycles10000500050002000
Icu (kA)400V80100100120
690V50656580
Ics (kA)400V506580100
690V40506580
Icw (kA) 1s400V506565/8085/100
690V405050/6565/75
Operating Voltage & Power Requirements
UnitAC220VAC380VDC110VDC220V
Shunt Release24VA36VA24VA24VA
Closing Electromagnet24VA36VA24VA24VA
Intelligent ControllerAC220V, AC380V, DC220V, DC110V
Installation & Overall Dimensions
Model TypeIn(A)a(mm)b(mm)e(mm)
Fixed (2000)400-800109538
Fixed (2000)1000-16001510548
Drawer-Type (2000)400-80010953
Drawer-Type (3200)2000-25002011558

Fixed circuit breaker Installation:

Fixed Dimensions

Drawer-Type Circuit Breaker Installation:

Drawer Dim 1
Drawer Dim 2
Drawer Dim 3
Drawer Dim 4
Busbar Specifications
Rated CurrentCopper Busbar SpecBars per pole
630A40×52
1250A80×52
2000A100×53
3200A120×103
6300A120×106
FAQ
1. What is the maximum rated current for this circuit breaker series?
The series covers frame levels up to 6300A, with specific rated currents ranging from 200A to 6300A depending on the frame size.
2. What is the difference between Fixed and Drawer-type circuit breakers?
Fixed types are bolted directly into the panel, while Drawer-types (withdrawable) allow the breaker to be easily removed from the chassis for maintenance without disconnecting main power lines.
3. Does it support both 3-pole and 4-pole configurations?
Yes, the 4-pole version is marked with "4", while the 3-pole version carries no specific pole marking.
4. What are the operating voltage requirements for the shunt release?
The shunt release operates reliably within 70%-110% of the rated voltage, which can be AC220V, AC380V, DC110V, or DC220V.
5. What is the breaking capacity at 400V?
Depending on the frame level, the Rated Short-Circuit Breaking Capacity (Icu) at 400V ranges from 80kA to 120kA.
6. Can this circuit breaker be operated manually?
Yes, it features a manual energy storage handle and manual Trip/Close buttons on the front panel for local operation.

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