Schneider Electric XB5AA731327 Harmony XB5 Triple-Headed Green I Red STOP Green II 22 mm 2NO+1NC Push Button

The Schneider Electric XB5AA731327 is a Harmony XB5 triple-headed push button combining two green flush heads marked I and II with a central red projecting STOP head, all in a single 22.5 mm panel cut-out, giving a 2NO+1NC contact set for three independent commands. It is sealed to IP66/IP67/IP69/IP69K.

Technical Specifications

Certifications & Standards

• CSA
• Lloyd's Register
• BV
• UL Listed
• DNV
• IEC 60947-5-1
• IEC 60947-1

Selection Notes

The two green I/II heads suit a two-speed or two-stage start sequence (for example jog and run) where both commands are equally non-hazardous, which is why both carry the start-function green rather than a mixed colour scheme. The central red STOP head keeps its own normally-closed contact with positive opening per IEC 60947-5-1 Appendix K, so the stop function fails safe independently of the two start contacts. One 22.5 mm cut-out replaces three separate stations, which simplifies the panel layout on compact machine-start consoles.