Address
304 North Cardinal St.
Dorchester Center, MA 02124
Work Hours
Monday to Friday: 7AM - 7PM
Weekend: 10AM - 5PM
DW1 - 6300 Air Circuit Breaker (ACB/Universal Circuit Breaker) Fixed & Drawer Type
DW1-6300 belongs to DW1 series mainstream low-voltage ACB, designed for 50Hz, 380V/660V power distribution systems, serving as core main switch for Large substation, heavy industry production base, municipal power distribution network. 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.
DW1-6300 Universal Air Circuit Breaker (ACB) – Product Overview
The DW1-6300 universal air circuit breaker is an ultra-high capacity low-voltage electrical device for AC 50Hz power distribution systems, with rated working voltage AC 380V/660V and rated frame current 6300A. Complying with GB/T 14048.2 and IEC 60947-2 standards, it adopts a heavy-duty reinforced structure and ultra-high performance contact system, specially designed for ultra-large capacity power distribution and short-circuit protection in large substations and heavy industry bases.
Equipped with high-precision intelligent electronic tripping units or reliable thermal-magnetic tripping, it provides comprehensive protection against overload, short circuit, undervoltage, phase loss and other faults. With ultra-high breaking capacity, extremely low temperature rise and long service life, it is widely used in large substations, heavy industry production bases, municipal power distribution networks and other ultra-high power applications.
DW1-6300 ACB – Core Product Advantages
- Ultra-high breaking capacity: Rated ultimate short-circuit breaking capacity up to 80kA (AC 380V), suitable for ultra-large power systems.
- 6300A ultra-high frame current: Stable long-term operation under extreme heavy load with extremely low temperature rise.
- Flexible tripping modes: High-precision intelligent electronic tripping and reliable thermal-magnetic tripping available.
- Comprehensive fault protection: Integrates overload, short circuit, undervoltage, phase loss and fault indication functions.
- Heavy-duty modular structure: Reinforced mechanism, contact system and tripping unit for long-term reliability.
- Stable energy storage operation: Fast closing/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 ultra-high current draw-out cabinets.
- Intelligent interconnection: Optional remote control, signal feedback and communication interface for smart power systems.
Main Technical Parameters
DW1-6300 ACB – Main Technical Parameters
| Parameter Category | Parameter Item | DW1-6300 Specification |
|---|---|---|
| Basic Electrical Parameters | Rated Working Voltage (Ue) | AC 380V / AC 660V |
| Rated Frame Current (In) | 6300A | |
| Rated Frequency (f) | 50Hz | |
| Short-Circuit Breaking Capacity | Rated Ultimate Breaking Capacity (Icu) @ 380V | 80kA |
| Rated Service Breaking Capacity (Ics) @ 380V | 65kA | |
| Peak Withstand Current (Icw) @ 380V | 160kA | |
| Rated Breaking Capacity @ 660V | 55kA | |
| 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
DW1-6300 ACB – Installation Instructions & Selection Guide
1. Installation Instructions
- DW1-6300 ACB supports fixed and draw-out installation, suitable for standard ultra-high current low-voltage cabinets, and must be installed vertically (verticality error ≤1°).
- 3P model is used for ultra-heavy industrial power systems; 4P model is suitable for large infrastructure and data centers requiring neutral protection.
- Use copper cables up to 400mm², with terminal tightening torque 18–20Nm 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 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 ultra-heavy-duty distribution; AC 660V for special industrial power systems.
- Pole type selection: 3P for ultra-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.
DW1-6300 ACB – Typical Application Scenarios
Large Substations & Heavy Industry Bases
Main incoming line, heavy industry production base power supply, metallurgical and mining equipment distribution
Main incoming line, heavy industry production base power supply, metallurgical and mining equipment distribution
Municipal Power Distribution Networks
Urban power grid main switch, large-scale infrastructure power supply systems
Urban power grid main switch, large-scale infrastructure power supply systems
Ultra-High Power Industrial Equipment
Large-scale motors, compressors, fans, pumps and other heavy industrial machinery
Large-scale motors, compressors, fans, pumps and other heavy industrial machinery
Data Centers & Energy Projects
Main power distribution, UPS system protection, large data center power supply
Main power distribution, UPS system protection, large data center power supply
Port & Marine Applications
Port and dock main power, marine power systems, offshore platform power distribution
Port and dock main power, marine power systems, offshore platform power distribution
Other Ultra-High Power Applications
Large construction site main power, industrial park master switch, large-scale commercial complexes
Large construction site main power, industrial park master switch, large-scale commercial complexes