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DW1 - 1000 Air Circuit Breaker (ACB/Universal Circuit Breaker) Fixed & Drawer Type
DW1-1000 belongs to DW1 series mainstream low-voltage ACB, designed for 50Hz, 380V/660V power distribution systems, serving as core main switch for small & medium power distribution scenarios. 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.
DW1-1000 Universal Air Circuit Breaker (ACB) – Product Overview
The DW1-1000 universal air circuit breaker is a core low-voltage electrical device for AC 50Hz power distribution systems with rated working voltage of AC 380V/660V and rated frame current of 1000A. Compliant with national and international standards GB/T 14048.2 and IEC 60947-2, it is developed on the basis of mainstream industry technology of CHINT, DELIXI and other top brands. The product adopts an integral modular structure, with reliable thermal-magnetic and electronic tripping protection functions, realizing comprehensive protection for overcurrent, short circuit, under-voltage and phase loss of power supply lines and electrical equipment.
Featuring compact structure, easy installation and operation, high breaking capacity and long service life, DW1-1000 ACB is widely used in medium-capacity low-voltage power distribution systems such as industrial and mining enterprises, commercial buildings, residential quarters and public facilities. It can be used as the main switch of power distribution cabinet, the incoming and outgoing line switch of distribution room, and the power protection switch of large electrical equipment, with strong adaptability to complex working environments.
DW1-1000 ACB – Core Product Advantages
- High breaking capacity: Rated ultimate short-circuit breaking capacity up to 50kA (AC 380V), effectively intercepting short-circuit current and protecting the safety of the power system.
- Dual tripping mode: Support thermal-magnetic tripping (for fixed power distribution) and electronic tripping (for adjustable precision protection), meeting different application requirements.
- Comprehensive protection functions: Integrate overcurrent, short circuit, under-voltage, phase loss and overload protection, no need to match additional protection devices.
- Modular design: Independent modular structure of operating mechanism, protection unit and contact system, convenient for maintenance and component replacement.
- Stable operation performance: Adopt energy-storage operating mechanism, with fast closing and opening speed, reliable action and low mechanical failure rate.
- Environmentally friendly and durable materials: Shell and internal parts are made of high-quality flame-retardant and heat-resistant engineering plastics, with IP30 protection grade, adapting to harsh industrial environments.
- Easy installation and operation: Support fixed and draw-out installation methods, match 35mm standard DIN rail, and the toggle handle has clear on/off status identification.
- Wide compatibility: Can be connected with intelligent power distribution systems, supporting remote signal transmission and remote control (optional function).
Main Technical Parameters
DW1-1000 ACB – Main Technical Parameters
| Parameter Category | Parameter Item | DW1-1000 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 | 50kA |
| Rated Service Breaking Capacity (Ics) @ 380V | 30kA | |
| Peak Withstand Current (Icw) @ 380V | 100kA | |
| Rated Breaking Capacity @ 660V | 30kA | |
| 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
DW1-1000 ACB – Installation Instructions & Selection Guide
1. Installation Instructions
- DW1-1000 ACB supports fixed and draw-out installation, matched with standard low-voltage distribution cabinet, and the installation surface should be flat and vertical (verticality error ≤1°).
- 3P type is used for three-phase power distribution system, 4P type is suitable for power system requiring neutral line protection (such as commercial buildings, hospitals).
- The wiring terminal should be connected with copper conductor (max terminal size: 95mm²), and the tightening torque is 8~10Nm to avoid poor contact caused by loose wiring.
- Working environment should be free of corrosive gas, dust and severe vibration; if used in high-humidity environment, additional moisture-proof measures are required.
- After installation, perform the tripping test (press the test button of the breaker) to verify the normal operation of overcurrent, short circuit and under-voltage protection functions.
- Regular maintenance (every 6 months) is required to clean the dust inside the breaker and check the contact wear and operating mechanism flexibility.
2. Selection Guide
- Select the rated working voltage according to the actual power system: AC 380V for general industrial and civil distribution, AC 660V for high-voltage low-capacity power system.
- Select pole number: 3P for pure three-phase power equipment (e.g., motor, pump), 4P for power system with single-phase and three-phase mixed load (e.g., shopping mall, residential quarter).
- Select tripping type: Thermal-magnetic tripping for fixed power distribution with low precision requirements; electronic tripping for industrial sites requiring adjustable protection current and time.
- Select installation method: Fixed type for small distribution cabinet with limited space; draw-out type for large distribution room requiring frequent maintenance and equipment replacement.
- Optional functions: Remote control and signal transmission function for intelligent power distribution system; undervoltage release for power failure protection of important equipment.
DW1-1000 ACB – Typical Application Scenarios
Industrial & Mining Enterprises
Workshop main power switch, production line power distribution protection, factory distribution room incoming line switch
Workshop main power switch, production line power distribution protection, factory distribution room incoming line switch
Commercial Buildings
Large shopping mall, office building, hotel main power distribution, central air conditioning power protection
Large shopping mall, office building, hotel main power distribution, central air conditioning power protection
Public Facilities
Hospital, school, stadium power supply system, municipal public lighting power distribution
Hospital, school, stadium power supply system, municipal public lighting power distribution
Residential Quarters
Large community distribution room main switch, property power supply management system
Large community distribution room main switch, property power supply management system
Mechanical Equipment
Large pump, fan, compressor power protection, industrial production line control cabinet
Large pump, fan, compressor power protection, industrial production line control cabinet
Other Scenarios
Data center auxiliary power system, construction site temporary power distribution, marine shore power protection
Data center auxiliary power system, construction site temporary power distribution, marine shore power protection