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Datasheet generated 2026-10-07
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Schneider Electric Harmony XB5 Emergency Stop Pushbutton Turn-to-Release 1 NC EN418 (XB5AS8442)

Schneider Electric · Control & Automation · Pushbuttons & Pilot Lights · France · se.com
Part Number
XB5AS8442  ·  HS 8536.50
Schneider Electric Harmony XB5 Emergency Stop Pushbutton Turn-to-Release 1 NC EN418 (XB5AS8442)

Schneider Electric XB5AS8442 is a complete Harmony XB5 emergency-stop pushbutton for 22 mm cutouts, with a red Ø 40 mm mushroom head, trigger-action turn-to-release operator and a single NC slow-break contact with positive opening to IEC 60947-5-1 Appendix K. The plastic-bezel unit is EN ISO 13850 (EN 418) compliant for machine safety stops on screw-clamp terminals. Typical use is on machine tools, conveyors and industrial equipment requiring a single-channel emergency stop.

Technical Specifications

Manufacturer part number (MPN)XB5AS8442
EAN / GTIN3389110575453
Sales unitpcs
Package quantity80 pcs
Contact configuration1 NC
Range of productHarmony XB5
Product or component typeEmergency switching off push-button; Emergency stop push-button
Device short nameXB5
Bezel materialDark grey plastic
Fixing collar materialPlastic
Head typeStandard
Mounting diameter22.5 mm
Sale per indivisible quantity1
Shape of signaling unit headRound
Type of operatortrigger action and mechanical latching
ResetTurn to release
Operator profileRed mushroom Ø 40 mm, unmarked
Contacts type and composition1 NC
Contact operationSlow-break
Connections - terminalsScrew clamp terminals, = 1 x 0.22 mm² without cable end conforming to IEC 60947-1
Device presentationComplete product
Height43 mm
Width40 mm
Depth82 mm
Terminals description ISO n°1(11-12)NC
Resistance to high pressure washer7000000 Pa at 55 °C, distance : 0.1 m
Contacts usageStandard contacts
Positive openingWith conforming to IEC 60947-5-1 appendix K
Operating travel1.5 mm (NC changing electrical state); 4.3 mm (total travel)
Mechanical durability300000 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, 1 mA in clean environment conforming to IEC 60947-5-4; Λ < 10exp(-8) at 17 V, 5 mA in clean environment conforming to IEC 60947-5-4
Protective treatmentTH
Ambient air temperature for storage-40…70 °C
Ambient air temperature for operation-40…70 °C
Overvoltage categoryClass II conforming to IEC 60536
IP degree of protectionIP66 conforming to IEC 60529; IP67; IP69; IP69K
Enclosure TypeUL type 4X/13
IK degree of protectionIK03 conforming to IEC 50102
StandardsJIS C8201-5-1; IEC 60204-1; IEC 60947-5-1; ISO 13850; CSA C22.2 No 14; IEC 60947-5-4; IEC 60947-1; UL 508; IEC 60364-5-53; IEC 60947-5-5; JIS C8201-1
Product certificationsCSA; LROS (Lloyds register of shipping); BV; UL listed; DNV
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
Number of Units in Package 3640
Country of originCZ
Warranty (in months)18
Unlocking methodTurn-release
Number of contacts as normally closed contact1
Degree of protection (IP)IP66
Mounting methodBuilt-in
With lightingNo
Hole diameter22.5 mm
Connection type auxiliary circuitScrew connection
Diameter cap40 mm

Properties

MOQ1

Cross-References

Attached Documents