ABB Files Patent for Electrical Switch Featuring Enhanced Arc Extinguishing System
Time:2026-05-06 Browse: 0
Subtitle:
New design improves safety and reliability by strengthening arc quenching during switch-off events
Body:
According to the China National Intellectual Property Administration, ABB Switzerland Ltd. has filed a patent titled “Electrical Switch” (Publication No. CN121964409A), with an application date of October 2025.
The patent describes an electrical switch design that enhances arc extinguishing performance, providing improved safety and reliability in power distribution and industrial applications.
Key Technical Features:
Switch Components: The design includes a frame, first stationary contact, a rotating rolling element, and a rotating contact fixed to the rolling element.
Arc Extinguishing System: An arc baffle system is integrated to strengthen the extinguishing of arcs formed between the first stationary contact and the rotating contact during switch-off events.
Innovative Mechanism:
First Arc Baffle (91): Moves relative to the frame between a first and second position.
Paired Component (92): Works with the first arc baffle to compress the arc between the baffle and paired component, enhancing arc quenching efficiency.
This technology enables more effective arc suppression, reducing wear on contacts, minimizing operational risks, and improving the durability and lifespan of electrical switches. It represents ABB’s ongoing commitment to innovating in electrical safety and high-performance switchgear design.
