LYA301 630A Spring Flat Contact for VCB – High-Voltage Vacuum Circuit Breaker Moving Contact for JYN1 & JYN2 Series

The LYA301 is a high-performance 630A spring flat contact engineered as a core conductive switching component for JYN1 and JYN2 series vacuum circuit breakers (VCB). Designed for demanding electrical environments, it is suitable for AC 50Hz systems with rated working voltages up to 35kV and is capable of supporting switch control circuits up to 2500A. This moving contact features a precision-stacked plate architecture with integrated spring-loading to ensure consistent contact pressure and optimal electrical conductivity. Manufactured with a high-durability silver-plated finish, the LYA301 provides exceptional resistance to oxidation and thermal stress, ensuring long-term reliability in industrial and utility power distribution cabinets.