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Datasheet generated 2026-10-07
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Schneider Harmony XB4 Emergency Stop Push-Pull 40mm Red 1NC

Schneider Electric · Control & Automation · Pushbuttons & Pilot Lights · France · se.com
Part Number
XB4BS8442  ·  HS 8536.50
Schneider Harmony XB4 Emergency Stop Push-Pull 40mm Red 1NC

Schneider Electric XB4BS8442 — Harmony XB4 22 mm command actuator. Metal or plastic 22 mm cutout push-button, selector or indicator. Harmony XB4 emergency stop, 40mm red mushroom head, push-pull (turn-to-release) latching action, 1NC contact, 22mm panel cut-out, metal bezel.

Technical Specifications

SeriesHarmony XB4
Diameter22mm cut-out / 40mm mushroom head
OperationPush-pull, latching, manual reset (pull or twist to release)
BezelChrome-plated metal
ColourRed mushroom on yellow legend
Contacts1 NC
Ip RatingIP66 (front), IP69K
ComplianceEN ISO 13850 emergency stop function
Contact configuration1 NC
Range of productHarmony XB4
Product or component typeEmergency switching off push-button; Emergency stop push-button
Device short nameXB4
Bezel materialChromium plated metal
Fixing collar materialZamak
Mounting diameter22.5 mm
Sale per indivisible quantity1
Shape of signaling unit headRound
Type of operatortrigger action and mechanical latching
Head typeStandard
ResetTurn to release
Operator profileRed mushroom Ø 40 mm, unmarked
Contact operationSlow-break
Connections - terminalsScrew clamp terminals, = 1 x 0.22 mm² without cable end conforming to IEC 60947-1
Height47 mm
Width40 mm
Depth82 mm
Terminals description ISO n°1(21-22)NC
Product weight0.118 kg
Resistance to high pressure washer7000000 Pa at 55 °C, distance : 0.1 m
Contacts type and composition1 NC
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 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
Electrical shock protection classClass 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
StandardsIEC 60947-5-1; UL 508; CSA C22.2 No 14; ISO 13850; IEC 60947-5-5; JIS C8201-5-1; IEC 60947-1; IEC 60947-5-4; IEC 60204-1; IEC 60364-5-53; 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 sine wave acceleration conforming to IEC 60068-2-27; 50 gn (duration = 11 ms) for half sine 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
EAN3606480625053

Properties

Primary standardIEC 60947-5-1; IEC 60947-5-5; EN ISO 13850; UL 508
MOQ1

Compatibility

EN ISO 13850 compliant emergency stop. Compatible with ZBE-102 NC contact blocks and ZBY-yellow legend holders. Use with Preventa safety relays.

Standards

Approvals

Attached Documents