
Q&S Qdw3 Compact Air Circuit Breaker Acb 4000A. High Breaking Capacity: Capable of interrupting high short-circuit currents with air arc-extinguishing medium. Advanced Electronic Trip Unit: Provides accurate adjustable protection for overload, short-circuit, and earth faults. Flexible Configuration: Available in 3-pole and 4-pole options with fixed or withdrawable installation types. Wide Current Range: Supports high-current applications suitable for main power distribution systems. Comprehensive Certifications: Certified under ISO9001-2000, CE, CB, CCC, and TUV standards. OEM Customization: Offers OEM services including brand logo, packaging, and product labeling. High Production Capacity: Manufacturing capacity of 5000 PCS per week ensures timely delivery. Strict Quality Control: Full-process inspection from raw materials to final testing and mechanical endurance.