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Datasheet generated 2026-10-07
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Schneider Electric Push button flush mounted, Harmony XB4, metal, black, 30mm, spring return, unmarked, 1NO XB4FA21

Schneider Electric · Control & Automation · Pushbuttons & Pilot Lights · France · se.com
Part Number
XB4FA21  ·  HS 8536.50
Schneider Electric Push button flush mounted, Harmony XB4, metal, black, 30mm, spring return, unmarked, 1NO XB4FA21

Schneider Electric XB4FA21 — Harmony XB4 22 mm command actuator. Metal or plastic 22 mm cutout push-button, selector or indicator. Push-button flush with spring return and plan push surface in black colour 1xNO.

Technical Specifications

Manufacturer part number (MPN)XB4FA21
EAN / GTIN3606489580063
Sales unitpcs
Package quantity5 pcs
Contact configuration1 NO
Range of productHarmony XB4
Device short nameXB4F
Product or component typePush-button
Product compatibilityZBYF...; ZBZF32; ZBZF33
Bezel materialChromium plated metal
Fixing collar materialZamak
Mounting diameter30.5 mm
Sale per indivisible quantity1
Shape of signaling unit headRound
Type of operatorspring return
Operator profileBlack flush, unmarked
Head typeBuilt-in-flush
Contacts type and composition1 NO
Contact operationSlow-break
Connections - terminalsScrew clamp terminals, <= 2 x 1.5 mm² with cable end conforming to IEC 60947-1; Screw clamp terminals, 1 x 0.22...2 x 2.5 mm² without cable end conforming to IEC 60947-1
Height47 mm
Width36.6 mm
Depth55 mm
Terminals description ISO n°1(13-14)NO
Product weight0.116 kg
Resistance to high pressure washer7000000 Pa at 55 °C, distance : 0.1 m
Device mountingBuilt-in
Fixing modeBy screws
Contacts usageStandard contacts
Positive openingWithout
Operating travel2.6 mm (NO changing electrical state); 4.3 mm (total travel)
Operating force3.8 N NO changing electrical state
Mechanical durability10000000 cycles
Tightening torque0.8…1.2 N.m conforming to IEC 60947-1
Shape of screw headCross compatible with Philips no 1 screwdriver; Cross compatible with pozidriv No 1 screwdriver; Slotted compatible with flat Ø 4 mm screwdriver; Slotted compatible with flat Ø 5.5 mm screwdriver
Contacts materialSilver alloy (Ag/Ni)
Short-circuit protection10 A cartridge fuse type gG conforming to IEC 60947-5-1
[Ith] conventional free air thermal current10 A conforming to IEC 60947-5-1
[Ui] rated insulation voltage600 V (pollution degree 3) conforming to IEC 60947-1
[Uimp] rated impulse withstand voltage6 kV conforming to IEC 60947-1
[Ie] rated operational current3 A at 240 V, AC-15, A600 conforming to IEC 60947-5-1; 6 A at 120 V, AC-15, A600 conforming to IEC 60947-5-1; 0.1 A at 600 V, DC-13, Q600 conforming to IEC 60947-5-1; 0.27 A at 250 V, DC-13, Q600 conforming to IEC 60947-5-1; 0.55 A at 125 V, DC-13, Q600 conforming to IEC 60947-5-1; 1.2 A at 600 V, AC-15, A600 conforming to IEC 60947-5-1
Electrical durability1000000 cycles, AC-15, 2 A at 230 V, operating rate <3600 cyc/h, load factor: 0.5 conforming to IEC 60947-5-1 appendix C; 1000000 cycles, AC-15, 3 A at 120 V, operating rate <3600 cyc/h, load factor: 0.5 conforming to IEC 60947-5-1 appendix C; 1000000 cycles, AC-15, 4 A at 24 V, operating rate <3600 cyc/h, load factor: 0.5 conforming to IEC 60947-5-1 appendix C; 1000000 cycles, DC-13, 0.2 A at 110 V, operating rate <3600 cyc/h, load factor: 0.5 conforming to IEC 60947-5-1 appendix C; 1000000 cycles, DC-13, 0.5 A at 24 V, operating rate <3600 cyc/h, load factor: 0.5 conforming to IEC 60947-5-1 appendix C
Electrical reliabilityΛ < 10exp(-6) at 5 V and 1 mA in clean environment conforming to IEC 60947-5-4; Λ < 10exp(-8) at 17 V and 5 mA in clean environment conforming to IEC 60947-5-4
Device presentationComplete product
Protective treatmentTH
Ambient air temperature for storage-40…70 °C
Ambient air temperature for operation-40…70 °C
Overvoltage categoryClass I conforming to IEC 60536
IP degree of protectionIP66 conforming to IEC 60529; IP67; IP69; IP69K
Enclosure TypeUL type 4X/13
IK degree of protectionIK06 conforming to IEC 50102
StandardsCSA C22.2 No 14; IEC 60947-5-1; IEC 60947-5-4; UL 508; IEC 60947-1; JIS C8201-5-1; JIS C8201-1
Product certificationsUL listed; CSA
Vibration resistance5 gn (f= 2…500 Hz) conforming to IEC 60068-2-6
Shock resistance30 gn (duration = 18 ms) for half its wave acceleration conforming to IEC 60068-2-27; 50 gn (duration = 11 ms) for half its wave acceleration conforming to IEC 60068-2-27
Number of Units in Package 11
Number of Units in Package 280
Warranty (in months)18
Hole diameter30.5 mm
Colour buttonBlack
Suitable for lightingNo
Number of command positions1
Spring-returnYes
Type of buttonFlat
Colour front ringChrome
Type of electric connectionScrew connection
Degree of protection (IP)IP66
Material front ringMetal
With front ringYes
TransparentNo
Construction type lensRound
Switching function latchingNo
Number of contacts as normally open contact1
Country of originFrance

Properties

MOQ1

Cross-References

Attached Documents