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DW2-1000-ACB-AIR-CIRCUIT-BREAKER
Air Circuit Breaker - ACB
DW2 - 1000 Air Circuit Breaker (ACB/Universal Circuit Breaker) Fixed & Drawer Type
DW2-1000 belongs to DW1 series mainstream low-voltage ACB, designed for 50Hz, 380V/660V power distribution systems, serving as core main switch for Upgraded medium distribution, frequency conversion equipment power, marine auxiliary power. It integrates complete circuit protection, dual installation modes, and stable operation performance, fully compliant with GB/T 14048.1/2 & IEC 60947-1/2 standards.
DW2 Series Universal Air Circuit Breaker (ACB) – Model & Application Scenario
| Series Model | Frame Current (In) | Rated Working Voltage | Typical Application Scenarios |
|---|---|---|---|
| DW2-1000 | 1000A | AC 380V/660V 50Hz | Upgraded medium distribution, frequency conversion equipment power, marine auxiliary power |
| DW2-1600 | 1600A | AC 380V/660V 50Hz | Large workshop distribution, high-rise building distribution room, industrial equipment main power |
| DW2-2000 | 2000A | AC 380V/660V 50Hz | Industrial park distribution, large shopping mall, hospital main power system |
| DW2-3200 | 3200A | AC 380V/660V 50Hz | Factory substation, industrial production line, large data center auxiliary power |
| DW2-4000 | 4000A | AC 380V/660V 50Hz | Medium-sized substation, heavy industry workshop, commercial complex main switch |
| DW2-6300 | 6300A | AC 380V/660V 50Hz | Large substation, heavy industry production base, municipal power distribution network |
Note: DW2 series ACB is an upgraded intelligent universal air circuit breaker, complying with GB/T 14048.2 and IEC 60947-2 standards, providing comprehensive protection and intelligent control for low-voltage power distribution systems.
DW2-1000 Universal Air Circuit Breaker (ACB) – Product Overview
The DW2-1000 universal air circuit breaker is an intelligent upgraded low-voltage electrical device for AC 50Hz power distribution systems, with rated working voltage AC 380V/660V and rated frame current 1000A. Complying with GB/T 14048.2 and IEC 60947-2 standards, it adopts an optimized modular structure and intelligent electronic tripping technology, specially designed for upgraded medium-capacity power distribution and precise protection.
Equipped with high-precision intelligent electronic tripping units, it provides comprehensive protection against overload, short circuit, undervoltage, phase loss, and grounding faults. With high breaking capacity, low temperature rise, and long service life, it is widely used in upgraded medium distribution networks, frequency conversion equipment, marine auxiliary power systems, and other intelligent power applications.
DW2-1000 ACB – Core Product Advantages
- Intelligent electronic tripping: High-precision adjustable protection with long/short/instant三段保护 and fault self-diagnosis.
- High breaking capacity: Rated ultimate short-circuit breaking capacity up to 65kA (AC 380V), meeting high fault current system requirements.
- Optimized modular structure: Compact design, independent mechanism and contact system for easy maintenance.
- Comprehensive protection functions: Integrates overload, short circuit, undervoltage, phase loss, and grounding protection.
- Long mechanical life: Mechanical life up to 20,000 operations, electrical life up to 6,500 operations.
- Intelligent interconnection: Standard RS485/Modbus communication interface, supporting remote control and monitoring.
- High protection level: Flame-retardant shell with IP30 protection, adapting to various industrial environments.
- Flexible installation: Fixed type and draw-out type compatible with standard low-voltage cabinets.
- Low maintenance: Key components with special lubrication, reducing maintenance frequency.
Main Technical Parameters
DW2-1000 ACB – Main Technical Parameters
| Parameter Category | Parameter Item | DW2-1000 Specification |
|---|---|---|
| Basic Electrical Parameters | Rated Working Voltage (Ue) | AC 380V / AC 660V |
| Rated Frame Current (In) | 1000A | |
| Rated Frequency (f) | 50Hz | |
| Short-Circuit Breaking Capacity | Rated Ultimate Breaking Capacity (Icu) @ 380V | 65kA |
| Rated Service Breaking Capacity (Ics) @ 380V | 45kA | |
| Peak Withstand Current (Icw) @ 380V | 120kA | |
| Rated Breaking Capacity @ 660V | 40kA | |
| Tripping Characteristics | Tripping Type | Intelligent Electronic (Standard) |
| Instant Tripping Current | 8~12In (short circuit) | |
| Overload Tripping Time | Inverse time characteristic (1.05In no trip for 2h; 1.3In trip within 2h) | |
| Mechanical Performance | Mechanical Life | 20,000 times |
| Electrical Life | 6,500 times | |
| Structural Parameters | Pole Number | 3P / 4P |
| Protection Grade | IP30 | |
| Installation Method | Fixed type / Draw-out type | |
| Environmental Parameters | Working Temperature | -5℃ ~ +40℃ (≤95% humidity, no condensation) |
| Pollution Degree | 2 | |
| Communication Interface | Standard Communication | RS485 / Modbus |
| Compliance Standards | National & International Standards | GB/T 14048.2, IEC 60947-2 |
Outline dimension and Install Dimension of drawer type
Outline dimension and install dimension of Fiexed Type
DW2-1000 ACB – Installation Instructions & Selection Guide
1. Installation Instructions
- DW2-1000 ACB supports fixed and draw-out installation, suitable for standard low-voltage cabinets, and must be installed vertically (verticality error ≤1°).
- 3P model is used for medium industrial power systems; 4P model is suitable for mixed single/three-phase load systems requiring neutral protection.
- Use copper cables up to 240mm², with terminal tightening torque 14–16Nm to ensure reliable connection and avoid overheating.
- Keep the working environment free of corrosive gas, conductive dust and strong vibration; install forced ventilation in closed high-temperature spaces.
- After installation, perform a manual tripping test and intelligent function verification to ensure normal operation of all protection and communication functions.
- Perform regular maintenance every 6 months: clean internal dust, check contact wear, mechanism flexibility, and communication module status.
2. Selection Guide
- Voltage selection: AC 380V for conventional medium-duty distribution; AC 660V for special industrial power systems.
- Pole type selection: 3P for medium-power motors, pumps and compressors; 4P for mixed single/three-phase load systems.
- Function selection: Standard intelligent electronic tripping for precise protection; add undervoltage release for important loads.
- Installation selection: Fixed type for compact distribution cabinets; draw-out type for systems requiring convenient maintenance.
- Communication selection: Standard RS485/Modbus interface for intelligent power monitoring and remote control systems.
DW2-1000 ACB – Typical Application Scenarios
Upgraded Medium Distribution
Factory workshop main switch, commercial building power supply, intelligent distribution network
Factory workshop main switch, commercial building power supply, intelligent distribution network
Frequency Conversion Equipment
Variable frequency drive power, motor control center, industrial automation system
Variable frequency drive power, motor control center, industrial automation system
Marine & Offshore Applications
Marine auxiliary power, offshore platform power distribution, shipboard power system
Marine auxiliary power, offshore platform power distribution, shipboard power system
Intelligent Industrial Projects
Smart factory power distribution, automated production line, intelligent monitoring system
Smart factory power distribution, automated production line, intelligent monitoring system
Commercial & Public Buildings
Large shopping mall, hospital, hotel main power supply system
Large shopping mall, hospital, hotel main power supply system
Other Intelligent Applications
Data center auxiliary power, construction site power, renewable energy power distribution
Data center auxiliary power, construction site power, renewable energy power distribution