Schneider Electric XB6AS8349B Emergency Stop Red Mushroom Trigger Latching Turn Emergency Stop Push Button

The Schneider Electric XB6AS8349B is a Harmony XB6 complete emergency stop push button with a red mushroom head, 30 mm diameter, on a 16 mm plastic bezel body. Trigger-action mechanical latching holds the button in once pressed, releasing only by turning the head, and it carries 1NO+2NC slow-break contacts for safety-circuit wiring.

Technical Specifications

Certifications & Standards

• CSA
• CCC
• GOST
• UL
• UL 508
• JIS C 852
• CSA C22.2 No 14
• IEC 60947-5-1
• IEC 60204-1
• ISO 13850
• IEC 60947-5-5
• JIS C8201-5-1
• IEC 60947-1
• JIS C8201-1

Selection Notes

Turn-to-release reset requires a deliberate twist of the mushroom head to restart the machine, preventing an accidental knock from re-enabling it, unlike the key-release XB6AS9349B, which needs a Ronis 200 key to reset and restricts who can restart the line. The 1NO+2NC contact set gives two positively-opened NC paths for redundant safety-relay monitoring plus one NO auxiliary for status feedback. The 30 mm mushroom head stands proud of the 16 mm bezel for fast, unmistakable actuation under stress, per ISO 13850.