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DW1 - 2000 Air Circuit Breaker (ACB/Universal Circuit Breaker) Fixed & Drawer Type
DW1-2000 belongs to DW1 series mainstream low-voltage ACB, designed for 50Hz, 380V/660V power distribution systems, serving as core main switch for Industrial park distribution, large shopping mall, hospital main power system. 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.
DW1 Series Universal Air Circuit Breaker (ACB) – Model & Application Scenario
| Series Model | Frame Current (In) | Rated Working Voltage | Typical Application Scenarios |
|---|---|---|---|
| DW1-1000 | 1000A | AC 380V/660V 50Hz | Medium power distribution, factory workshop main switch, commercial building power supply |
| DW1-1600 | 1600A | Large workshop distribution, high-rise building distribution room, industrial equipment main power | |
| DW1-2000 | 2000A | Industrial park distribution, large shopping mall, hospital main power system | |
| DW1-3200 | 3200A | Factory substation, industrial production line, large data center auxiliary power | |
| DW1-4000 | 4000A | Medium-sized substation, heavy industry workshop, commercial complex main switch | |
| DW1-6300 | 6300A | Large substation, heavy industry production base, municipal power distribution network | |
| DW2-1000 | 1000A | AC 380V/660V 50Hz | Upgraded medium distribution, frequency conversion equipment power, marine auxiliary power |
Note: All DW1/DW2 series ACB are designed for low-voltage power distribution systems, providing overcurrent, short-circuit and under-voltage protection for power supply lines and electrical equipment.
DW1-2000 Universal Air Circuit Breaker (ACB) – Product Overview
The DW1-2000 universal air circuit breaker is a high-capacity low-voltage electrical device for AC 50Hz power distribution systems, with rated working voltage AC 380V/660V and rated frame current 2000A. Complying with GB/T 14048.2 and IEC 60947-2 standards, it integrates mature technologies from leading brands such as CHINT and DELIXI, providing higher breaking capacity and stronger load capacity for heavy-duty power distribution.
The product adopts an optimized modular structure with reliable thermal-magnetic or electronic tripping systems, offering full protection against overload, short circuit, undervoltage, phase loss and other faults. With stable performance, long service life and strong environmental adaptability, it is widely used in large industrial parks, data centers, hospitals, commercial complexes and high-power power distribution scenarios.
DW1-2000 ACB – Core Product Advantages
- High breaking capacity: Rated ultimate short-circuit breaking capacity up to 65kA (AC 380V), suitable for heavy-load power distribution systems.
- 2000A high frame current: Stable long-term operation under heavy load, low temperature rise and high safety.
- Dual tripping modes: Thermal-magnetic tripping for standard use and electronic tripping for precise adjustable protection.
- Comprehensive protection: Integrates overload, short circuit, undervoltage, phase loss and reverse power protection.
- Reinforced modular structure: Independent mechanism, contact system and tripping unit for easy maintenance.
- Energy storage operating mechanism: Fast closing/opening, long mechanical life up to 10,000 operations.
- Flame-retardant shell & IP30 protection: Adaptable to harsh industrial and construction environments.
- Flexible installation: Fixed type and draw-out type available, compatible with standard draw-out cabinets.
- Intelligent upgradeable: Optional remote control, signal feedback and communication functions for smart power systems.
Main Technical Parameters
DW1-2000 ACB – Main Technical Parameters
| Parameter Category | Parameter Item | DW1-2000 Specification |
|---|---|---|
| Basic Electrical Parameters | Rated Working Voltage (Ue) | AC 380V / AC 660V |
| Rated Frame Current (In) | 2000A | |
| 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 | 130kA | |
| Rated Breaking Capacity @ 660V | 40kA | |
| Tripping Characteristics | Tripping Type | Thermal-magnetic / Electronic (optional) |
| Instant Tripping Current | 10~14In (short circuit) | |
| Overload Tripping Time | Inverse time characteristic (1.05In no trip for 2h; 1.3In trip within 2h) | |
| Mechanical Performance | Mechanical Life | 10,000 times |
| Electrical Life | 5,000 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 | |
| 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
DW1-2000 ACB – Installation Instructions & Selection Guide
1. Installation Instructions
- DW1-2000 ACB supports fixed and draw-out installation, suitable for standard high-current low-voltage cabinets, and must be installed vertically (verticality error ≤1°).
- 3P for three-phase industrial power systems; 4P for applications requiring neutral protection such as hospitals, data centers and commercial buildings.
- Use copper cables up to 185mm², with terminal tightening torque 12–14Nm to ensure reliable connection and avoid overheating.
- Keep the working environment free of corrosive gas, conductive dust and strong vibration; add ventilation in closed high-temperature spaces.
- After installation, perform a manual tripping test to verify normal operation of all protection functions.
- Perform maintenance every 6 months: clean dust, check contacts and mechanism flexibility to extend service life.
2. Selection Guide
- Voltage: AC 380V for general heavy distribution; AC 660V for special industrial power systems.
- Pole type: 3P for motors, pumps and compressors; 4P for mixed single/three-phase load systems.
- Tripping: Thermal-magnetic for standard distribution; electronic for precision adjustable protection.
- Installation: Fixed for compact cabinets; draw-out for large distribution stations requiring easy maintenance.
- Options: Undervoltage release for critical loads; communication module for intelligent power monitoring.
DW1-2000 ACB – Typical Application Scenarios
Industrial Parks & Large Factories
Main incoming line, substation distribution, heavy-duty production line power supply
Main incoming line, substation distribution, heavy-duty production line power supply
Large Commercial Complexes
Shopping malls, office buildings, hotels, central air conditioning and elevator main power
Shopping malls, office buildings, hotels, central air conditioning and elevator main power
Hospitals & Data Centers
Operating room power, UPS backup power, critical equipment distribution
Operating room power, UPS backup power, critical equipment distribution
Public Infrastructure
Stadiums, airports, railway stations, government building power systems
Stadiums, airports, railway stations, government building power systems
Large Mechanical Equipment
High-power motors, pumps, compressors, metallurgical and mining equipment
High-power motors, pumps, compressors, metallurgical and mining equipment
Other High-power Sites
Construction main power, port & dock distribution, marine shore power systems
Construction main power, port & dock distribution, marine shore power systems