Home Brands Schneider Electric Schneider Harmony XB4 Pushbuttons Harmony XB4 is the chrome-bezel 22 mm command range — the metal-front pushbuttons, selector switches, emergency stops and pilot lights found on most machine panels. We supply complete units and the separate heads, bodies, contact blocks and LED modules used to build or repair them, along with legend plates and protective boots.
Harmony XB4 Pushbuttons (Metal) we supply Harmony XB4 XB4BA31 green flush pushbutton 22 mm spring return 1 NO Harmony XB4 XB4BA42 red flush pushbutton 22 mm spring return 1 NC Harmony XB4 XB4BS8445 emergency stop pushbutton 40 mm red mushroom turn to release 1 NO + 1 NC Harmony XB4 XB4BVB4 red LED pilot light 22 mm 24 V AC/DC Harmony XB4 XB4BVM3 green LED pilot light 22 mm 230...240 V AC Schneider Electric XB4BA115 — Push button, Harmony XB4, metal, flush, white, 22mm, spring return, unmarked, 1 NO, compact push in terminals Schneider Electric XB4BA11 — Harmony XB4 Push Button, Flush, White, 22mm, Spring Return, 1NO Schneider Electric XB4BA21 — 22mm Metal Flush Push Button, Black, Unmarked, Spring Return, 1NO Schneider Electric XB4BA215 — Push button, Harmony XB4, metal, flush, black, 22mm, spring return, unmarked, 1 NO, compact push in terminals Schneider Electric XB4BA25 — Push button, metal, flush, black, Ø22, spring return, unmarked, 1 NO + 1 NC Schneider Electric XB4BA315 — Push button, Harmony XB4, metal, flush, green, 22mm, spring return, unmarked, 1 NO, compact push in terminals Schneider Electric XB4BA33115 — Push button, Harmony XB4, metal, flush, green, 22mm, spring return, white marked I, 1 NO, compact push in terminals Schneider Electric XB4BA3311 — Push button, metal, flush, green, Ø22, spring return, marked I, 1NO Schneider Electric XB4BA3341 — Push button, metal, flush, white, Ø22, spring return, marked UP ARROW, 1 NO Schneider Electric XB4BA3351 — Push button, metal, flush, black, Ø22, spring return, marked DOWN ARROW, 1 NO Schneider Electric XB4BA425 — Push button, Harmony XB4, metal, flush, red, 22mm, spring return, unmarked, 1 NC, compact push in terminals Schneider Electric XB4BA43225 — Push button, Harmony XB4, metal, flush, red, 22mm, spring return, white marked O, 1 NC, compact push in terminals Schneider Electric XB4BA4322 — Push button, metal, flush, red, Ø22, spring return, marked O, 1 NC Schneider Electric XB4BA45 — Schneider Electric Harmony XB4 Push button, flush, red, unmarked, 1NO+1NC Schneider Electric XB4BA515 — Push button, Harmony XB4, metal, flush, yellow, 22mm, spring return, unmarked, 1 NO, compact push in terminals Schneider Electric XB4BA51 — Push-button, yellow flush, unmarked, 1 NO, 22.5mm Schneider Electric XB4BA615 — Push button, Harmony XB4, metal, flush, blue, 22mm, spring return, unmarked, 1 NO, compact push in terminals Schneider Electric XB4BA61 — Harmony XB4 Metal Flush Blue Unmarked Spring Return Push Button 1NO Schneider Electric XB4BA711237 — white flush/red projecting/black flush triple-headed pushbutton Ø22 1NO+1NC+1NO Schneider Electric XB4BA731327 — green flush/red projecting/green flush triple-headed pushbutton Ø22 1NO+1NC+1NO Schneider Electric XB4BA821 — Manual overload reset push button, Harmony XB4, metal, flush, black, 22mm, 6...16mm actuation distance, unmarked Schneider Electric XB4BA921 — Manual overload reset push button, Harmony XB4, black flush, 22mm, for 30...130 mm actuation distance Schneider Electric XB4BA922 — Manual overload reset push button, Harmony XB4, black flush, 22mm, for 130...257 mm actuation distance Schneider Electric XB4BA941 — red flush reset pushbutton Ø22 for 30…130 mm actuation distance Schneider Electric XB4BA942 — Manual overload reset push button, Harmony XB4, red flush, 22mm, for 130...257 mm actuation distance Schneider Electric XB4BA961 — Manual overload reset push button, Harmony XB4, blue flush, 22mm, for 30...130 mm actuation distance Schneider Electric XB4BA962 — Manual overload reset push button, Harmony XB4, blue flush pushbutton Ø22 mm for 130...257 mm actuation distance Schneider Electric XB4BC21 — Push button, metal, black mushroom Ø40, Ø22, spring return, unmarked, 1 NO Schneider Electric XB4BD215 — Selector switch, Harmony XB4, metal, black, 22mm, 2 positions, stay put, 1 NO, compact push in terminals Schneider Electric XB4BD21 — Harmony XB4 Selector Switch 2-Position Stay Put 1 NO Black Metal Bezel Schneider Electric XB4BD255 — Selector switch, Harmony XB4, metal, black, 22mm, 2 positions, stay put, 1 NO + 1 NC, compact push in terminals Schneider Electric XB4BD25 — Harmony XB4 selector switch 2 positions stay put 1NO+1NC Schneider Electric XB4BD335 — Selector switch, Harmony XB4, metal, black, 22mm, 3 positions, stay put, 2 NO, compact push in terminals Schneider Electric XB4BD415 — Selector switch, Harmony XB4, metal, black, 22mm, 2 positions, spring return from right to left, 1 NO, compact push in Schneider Electric XB4BD41 — Selector switch, metal, black, Ø22, 2 positions, spring return from right to left, 1NO Schneider Electric XB4BD535 — Selector switch, Harmony XB4, metal, black, 22mm, 3 positions, spring return to center, 2 NO, compact push in terminals Schneider Electric XB4BD53 Selector Switch, 3-Position, Spring Return, 2 NO Schneider Electric XB4BD912R100K — Complete potentiometer, Harmony XB4, metal, 22mm, 100K Schneider Electric XB4BD912R10K — head Ø22 + mounting base + potentiometer 10K Schneider Electric XB4BD912R1K — head Ø22 + mounting base + potentiometer 1K Schneider Electric XB4BD912R470K — head Ø22 + mounting base + potentiometer 470K Schneider Electric XB4BD912R47K — head Ø22 + mounting base + potentiometer 47K Schneider Electric XB4BD912R4K7 — head Ø22 + mounting base + potentiometer 4K7 1 2 3 4 5 6 7 8 9 10 11 Next
What to check before ordering Decide between a complete unit and a head-plus-body build — the reference format differs and mixing them causes missing parts on site. Match the LED module supply voltage (24 V, 110 V, 230 V) to your control circuit. Contact blocks (ZB4) are ordered separately for head-based builds and stack on the rear. Confirm the 22 mm cut-out; XB4 will not fit a 30 mm panel hole without an adapter. Frequently asked questions What is the difference between XB4 and XB5? The bezel and the price. XB4 has a metal (chrome) front ring and a metal body, XB5 is the plastic-bezel equivalent. Function, 22 mm cut-out and contact blocks are broadly the same — XB4 is chosen for appearance and durability, XB5 for cost.
Is the contact block included? For complete-unit references, yes. For head-only references, no — you also need the body and the ZB4 contact or LED block.
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