Product Introduction
| Electrical features | |||||
| Model/Frame | ETW6-1600 | ETW6-3200 | ETW6-4000 | ETW6-6300 | |
| Number of poles | 3P,4P | 3P,4P | 3P,4P | 3P,4P | |
| Rated current | 200/400/630 800/1000 1250/1600aA | 2000/2500 3200 | 3200/3600 4000 | 4000/5000 6300 | |
| Icu | 400V | 70 | 100 | 100 | 120 |
| 690V | 50 | 65 | 65 | 80 | |
| Ics | 400V | 70 | 80 | 80 | 100 |
| 690V | 42 | 65 | 65 | 70 | |
| Icw | 400V | 50 | 80 | 80 | 100 |
| 690V | 42 | 50 | 50 | 65 | |
| Mechanical features | |||||
| Operating performances (operations) | Mechanical life | 8000 | 8000 | 8000 | 1000 |
| Electrical life | Maintenance- free 10000 Maintinable 15000 | Maintenance- free 9000 Maintinable 12000 | Maintenance- free 9000 Maintinable 12000 | Maintenance- free 2000 Maintinable 3000 | |
| Mounting mode | Fixed、With- drawable | Fixed、With- drawable | Fixed、With- drawable | Withdrawable | |
| Fix type (LxHxD) | 265/335- 310-235 | 422/537- 402-340 | |||
| Drawer type (LxHxD) | 275/345- 345-340 | 470/585- 432-495 | 580/788- 432-495 | 813-433-495 928-433- 495(6300A) | |
The ETW3 Series Air Circuit Breaker (ACB) is a high-performance, intelligent circuit device designed for industrial, commercial, and infrastructure power systems. Engineered for AC 50Hz/60Hz networks (400V & 690V) with a rated current range 200A–6300A, the ETW3 ACB ensures safe and reliable power distribution while preventing electrical hazards like overloads, short circuits, under-voltage, and single-phase faults.
With selective tripping and intelligent protection, this breaker minimizes nuisance outages and enhances system reliability, making it ideal for power plants, factories, mines (690V), smart buildings, and data centers. Compliant with **IEC/EN 60947-2 ETW3 ACBs set the standard for durability, safety, and efficiency in electrical protection.
Ultra-High Breaking Capacity for Maximum Safety
- Icu (Ultimate Breaking Capacity): Up to 100kA (400V) / 50kA (690V)
- Quick fault isolation to prevent arc damage and equipment failure.
Intelligent & Selective Protection
- Zone-Selective Interlocking (ZSI): Minimizes downtime by isolating only the affected circuit.
- Advanced Trip Unit: Monitors overload, short-circuit, under-voltage, and earth leakage faults.
Flexible & Reliable Operation
- Fixed or Withdrawable Design: Adapts to switchboard & panel requirements for easy maintenance.
- Long Mechanical Life: 15,000+ operations (higher for maintainable models).
- Modular Accessories: Supports remote monitoring, motorized operation, and busbar integration.
- Manual & Electric Operation Options: Ensures flexibility in emergency scenarios.
Compliance & Certifications
- Global Safety Standards (IEC/EN 60947-2, CCC, CE, etc.).
- Ideal for Smart Grids & Industry 4.0 Integration.
Robust Performance: Safeguards AC 50Hz/60Hz circuits (400V/690V,up to 6300A)
Intelligent Protection: Defends against overloads, short circuits, under-voltage, and single-phase faultsSelective Tripping: Prevents unnecessary outages, maximizing powerreliability
Wide Applications: Ideal for power plants, factories, mining (69oV),and smart buildingsGlobal Compliance: Meets IEC/EN 60947-2 standards for safety &durability
Where ETW3 Excels
Industrial & Heavy-Duty Environments
- Power Plants & Substations: Ensures grid stability with high-breaking capacity.
- Mining & Offshore (690V Applications): Built for harsh conditions & high-voltage demands.
- Manufacturing Facilities: Protects CNC machines, motors, and high-power loads.
Smart Buildings Infrastructure
- Commercial Complexes: Prevents power failures in elevators, HVAC, and critical systems.
- Data Centers: Enables intelligent load shedding to maximize uptime.
Renewable Energy & Microgrids
- Solar/Wind Farms: Manages variable power flows efficiently.
- Backup Power Systems: Seamlessly integrates with generators & UPS systems.
Why Choose ETW3 Over Traditional Breakers?
Higher Selectivity = Fewer Power Outages
Unlike conventional breakers that trip entire networks, ETW3 isolates only the faulty section, reducing downtime.
Longer Lifespan, Lower TCO
With 8,000–15,000 operations, ETW3 reduces maintenance costs by 40%+ vs. competitors.
Smarter Integration for Future-Proofing
Optional IoT-compatible trip units enable real-time power quality monitoring & predictive maintenance.
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