Schneider Electric XB4FA31 Harmony XB4 Push Button Green Flush 30 mm Spring Return Unmarked 1NO Push Button

The Schneider Electric XB4FA31 is a Harmony XB4 flush-mounted push button with a chromium-plated metal bezel, a green round head , unmarked, and spring return operation. The 1 NO contact switches at 10 A Ith through screw-clamp terminals, and the built-in-flush body fits a 30.5 mm panel cutout with IP66, IP67, IP69 and IP69K protection.

Technical Specifications

Certifications & Standards

• IEC 60947-5-1
• IEC 60947-1
• UL 508
• CSA C22.2 No 14

Selection Notes

The XB4FA31 is built-in-flush rather than panel-cap projecting, so the 30.5 mm head sits level with the panel face instead of standing proud of it — specify this family when the station needs a larger, flush 30 mm target instead of the 22 mm XB4B range. It is compatible with ZBYF legend holders and ZBZF32/ZBZF33 mounting accessories, so marking or contact-block changes can be made without replacing the whole head. Unmarked means the single 1 NO contact switches on actuation and resets as soon as the operator lets go, which fits a momentary command rather than a latched mode selection. The metal body and Zamak collar carry the same IP66/IP67/IP69/IP69K sealing as the rest of the Harmony XB4 range.

Applications

Used as a green flush-mounted momentary control input on operator stations and machine panels that call for a 30 mm cutout rather than the standard 22 mm Harmony XB4 footprint.