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DW1 - 3200 Air Circuit Breaker (ACB/Universal Circuit Breaker) Fixed & Drawer Type
DW1-3200 belongs to DW1 series mainstream low-voltage ACB, designed for 50Hz, 380V/660V power distribution systems, serving as core main switch for Factory substation, industrial production line, large data center 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.
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.
DW1-3200 Universal Air Circuit Breaker (ACB) – Product Overview
The DW1-3200 universal air circuit breaker is a heavy‑duty low‑voltage electrical device for AC 50Hz power distribution systems, with rated working voltage AC 380V/660V and rated frame current 3200A. Complying with GB/T 14048.2 and IEC 60947-2 standards, it adopts an optimized structure and high‑performance contact system, suitable for large‑capacity power distribution and short‑circuit protection in industrial and infrastructure fields.
It is equipped with advanced thermal‑magnetic or electronic tripping units, realizing full protection against overload, short circuit, undervoltage, phase loss and other faults. With high breaking capacity, low temperature rise and long mechanical life, it is widely used in factory substations, large industrial production lines, data centers, energy projects and other high‑power applications.
DW1-3200 ACB – Core Product Advantages
- High breaking capacity: Rated ultimate short‑circuit breaking capacity up to 70kA (AC 380V), suitable for large‑capacity power systems.
- 3200A heavy‑duty frame current: Stable operation under long‑term heavy load with low temperature rise and high reliability.
- Flexible tripping selection: Standard thermal‑magnetic tripping and high‑precision electronic tripping available.
- Comprehensive protection functions: Integrates overload, short circuit, undervoltage, phase loss and fault alarm functions.
- Reinforced modular structure: Independent operating mechanism, contact system and tripping unit for easy maintenance.
- Stable energy storage mechanism: Fast closing and opening speed, mechanical life up to 10,000 operations.
- High protection level: Flame‑retardant shell with IP30 protection, adapting to harsh industrial environments.
- Multiple installation methods: Fixed type and draw‑out type compatible with standard high‑current draw‑out cabinets.
- Intelligent expansion: Optional remote control, signal feedback and communication interface for smart power distribution systems.
Main Technical Parameters
DW1-3200 ACB – Main Technical Parameters
| Parameter Category | Parameter Item | DW1-3200 Specification |
|---|---|---|
| Basic Electrical Parameters | Rated Working Voltage (Ue) | AC 380V / AC 660V |
| Rated Frame Current (In) | 3200A | |
| Rated Frequency (f) | 50Hz | |
| Short-Circuit Breaking Capacity | Rated Ultimate Breaking Capacity (Icu) @ 380V | 70kA |
| Rated Service Breaking Capacity (Ics) @ 380V | 50kA | |
| Peak Withstand Current (Icw) @ 380V | 140kA | |
| Rated Breaking Capacity @ 660V | 45kA | |
| 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
DW1-3200 ACB – Installation Instructions & Selection Guide
1. Installation Instructions
- DW1-3200 ACB supports fixed and draw‑out installation, suitable for standard high‑current low‑voltage cabinets, and must be installed vertically (verticality error ≤1°).
- 3P model is used for three‑phase heavy industrial power systems; 4P model is suitable for occasions needing neutral protection such as data centers and large infrastructure.
- 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 sufficient ventilation in closed high‑temperature spaces.
- After installation, perform a manual tripping test to verify normal operation of all protection functions.
- Perform regular maintenance every 6 months: clean internal dust, check contact wear and mechanism flexibility.
2. Selection Guide
- Voltage selection: AC 380V for conventional heavy‑duty distribution; AC 660V for special industrial power systems.
- Pole type selection: 3P for high‑power motors, pumps and compressors; 4P for mixed single/three‑phase load systems.
- Tripping selection: Thermal‑magnetic tripping for standard distribution; electronic tripping for precision adjustable protection.
- Installation selection: Fixed type for compact distribution cabinets; draw‑out type for large substations requiring convenient maintenance.
- Function selection: Add undervoltage release for important loads; select communication module for intelligent power monitoring systems.
DW1-3200 ACB – Typical Application Scenarios
Factory Substations & Heavy Industry
Main incoming line, large production line power supply, metallurgical and mining equipment distribution
Main incoming line, large production line power supply, metallurgical and mining equipment distribution
Large Data Centers & Energy Projects
UPS main power, battery system protection, large data center power distribution
UPS main power, battery system protection, large data center power distribution
Infrastructure & Public Buildings
Airports, railway stations, stadiums, large hospital power supply systems
Airports, railway stations, stadiums, large hospital power supply systems
High-Power Industrial Equipment
Large motors, compressors, water pumps, fans and other heavy machinery
Large motors, compressors, water pumps, fans and other heavy machinery
Industrial Parks & Integrated Bases
Main power distribution of large industrial parks, production bases and logistics centers
Main power distribution of large industrial parks, production bases and logistics centers
Other Heavy‑Duty Applications
Port and dock power supply, marine power systems, large construction site main power
Port and dock power supply, marine power systems, large construction site main power
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