100kA Protection & 40% Downtime Reduction

Air circuit breaker switches are critical components in low-voltage power distribution, providing reliable protection against overloads, short circuits, and earth faults. At ZHNYU ELECTRIC, our air circuit breaker switch is designed with advanced arc-quenching chambers, high-precision trip units, and durable contacts to ensure superior performance in demanding environments. The manufacturing process begins with rigorous material selection, including silver-based contact tips and high-strength thermoplastics, ensuring compliance with RoHS and ISO9001 standards. Our 100+ production equipment units, including automated assembly lines and precision testing rigs, enable an annual output of over 500,000 units. Each air circuit breaker switch undergoes 100% routine testing, including dielectric strength, temperature rise, and mechanical life tests, achieving a defect rate below 0.1%. In power distribution, our air circuit breaker switch is widely used in main switchboards, generator protection, and capacitor banks.