Intelligent Air Circuit Breaker (ACB) | Up to 6300A
Description
Intelligent Air Circuit Breaker (ACB) — Suzhou Manufacturer
Wan Long Electric's Intelligent Air Circuit Breaker (ACB) is designed for low-voltage power distribution systems requiring high-current protection and intelligent control. Ideal for main incoming and bus-coupler applications in industrial plants, data centers, and large commercial buildings.
Key Features
- Intelligent Electronic Trip Unit: Overload (L), short-circuit (S/I), ground fault (G), and neutral protection with adjustable settings
- High Rated Current: 630A to 6300A in fixed and draw-out versions
- High Breaking Capacity: Icu up to 100kA at 400V AC
- LCD Display: Real-time display of current, voltage, power, energy, and fault records
- Communication Interface: RS485 / Modbus RTU / Profibus DP / Ethernet (optional)
- Zone Selective Interlocking (ZSI): Minimizes fault clearing time and arc flash energy
- Motor Mechanism: Remote electrical open/close operation available
Technical Specifications
- Rated Voltage: 400V / 690V AC
- Rated Current (In): 630A, 800A, 1000A, 1250A, 1600A, 2000A, 2500A, 3200A, 4000A, 5000A, 6300A
- Rated Ultimate Breaking Capacity (Icu): 65kA – 100kA @ 400V
- Rated Service Breaking Capacity (Ics): 100% Icu
- Poles: 3P / 4P
- Type: Fixed / Draw-out (Withdrawable)
- Standards: IEC 60947-2, GB 14048.2
Applications
- Main incoming circuit breaker in low voltage switchgear panels
- Bus-coupler and bus-section breakers
- Generator protection and synchronization panels
- Data center power distribution units (PDU)
- Marine and offshore power systems
- Utility substations and transformer secondary protection
Why Choose Wan Long Electric?
Our ACBs are manufactured under strict ISO 9001 quality management and fully tested to IEC 60947-2 standards. We offer complete customization including trip unit settings, communication protocols, and panel integration support. With fast lead times from our Suzhou factory and global shipping, we serve customers in over 30 countries.
Contact us for a technical consultation and competitive quote.
Care
To maintain the beauty and integrity of your purchase, we recommend treating it with care. Simple maintenance practices, such as gentle washing and proper storage, can effectively preserve the longevity of your favorites. We encourage you to refer to the care instructions included with each item, designed to help you keep your purchase in top condition.
Design
Our dedication to excellence extends beyond materials; it encompasses the artistry and craftsmanship illustrated in every piece we create.