Intelligent Air Circuit Breaker DW45 Series
The DW45 series intelligent air circuit breaker is designed for AC power distribution networks with rated voltage AC400V/AC690V. It distributes electric energy and protects circuits and electrical equipment from overload, undervoltage, short circuit, and single-phase grounding faults.





Technical Specifications
Overview
Intelligent Air Circuit Breaker (DW45 Series)
The DW45 series intelligent air circuit breaker is designed for robust power distribution and protection in AC 50/60Hz networks. It provides comprehensive defense against overloads, undervoltage, short circuits, and single-phase grounding faults. Featuring advanced intelligent control units, this breaker ensures precise monitoring and reliable performance in demanding industrial and commercial applications.
Electrical Specifications
Breaking Capacity Performance
| Parameter | 400V (kA) | 690V (kA) |
|---|---|---|
| Icu (Ultimate) | 100 | 65 |
| Ics (Running) | 65 | 50 |
| Icw (1s) | 65 | 50 |
- Rated Operational Voltage
- AC 400V / 415V / 690V
- Rated Current Range
- 630A - 6300A
- Rated Insulation Voltage (Ui)
- 1000 V
- Rated Impulse Withstand Voltage (Uimp)
- 12 kV
- Operating Frequency
- 50 Hz
Design & Features
Supported Protocols
- Available Types
- Fixed TypeWithdrawable Type
- Pole Configurations
- 3P4P
- Compliance Standards
- IEC 60947-2
Installation & Service
Installation Category
- Circuit Breaker: IV
- Auxiliary Circuit: III
- Pollution Degree
- 3
- Connection & Incoming
- HorizontalVerticalUp-feedDown-feed



