How to Diagnose and Fix Welded Relay Contacts
230.00 £
Published date: 2025/10/08
- Location: 13012, Surprise, Alaska, United States
When relay contacts fuse together, it’s a typical breakdown scenario that occurs when the contacts stick together due to excessive heat or انواع رله arcing during switching. This typically happens when a relay is used to switch high currents or when it is operated frequently under load. The intense heat generated during arcing can melt the contact material, causing it to fuse together. Once welded, the relay can no longer open the circuit, which may lead to system failure or even potential fire hazards.
Several factors contribute to contact welding. Exceeding the relay’s switching current rating is the most common trigger. Repeated switching under heavy load increases the duration and intensity of arcs and promoting material transfer and fusion.
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