Harmony XB4 Emergency Stop Push Button, 40mm Mushroom Head, IP66
Harmony XB4 Emergency Stop Push Button, 40mm Mushroom Head, IP66
Harmony XB4 Emergency Stop Push Button, 40mm Mushroom Head, IP66
Harmony XB4 Emergency Stop Push Button, 40mm Mushroom Head, IP66
Harmony XB4 Emergency Stop Push Button, 40mm Mushroom Head, IP66
Schneider Electric

Schneider Electric XB4BS8442 Harmony XB4 Emergency Stop Push Button, 40mm Mushroom Head, IP66

  • MPN: XB4BS8442
  • PPN: SCH-XB4BS8442
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    $100.46

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    Spec sheet

    Description

    This Harmony XB4 emergency stop / shutdown 40mm mushroom head modular red push button operates with a latched turn to release mechanism. It has a metal bezel. This emergency stop / shutdown button, also called EMS (Emergency Machine Stop) and EMO (Emergency Off), is easily installed into a standard 22mm diameter cut-outs and connected with simple screw-clamp connections. It is clearly distinguishable visually at a distance thanks to a clear color and a prominent 40mm mushroom shape. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP66, making it ideal for operation in harsh environments.

    Features

    • The XB4BS8442 is a 40mm red mushroom head Emergency Stop (E-Stop) push button that features a "Trigger Action" and mechanical latching. This ensures that the electrical contacts only change state once the button is fully actuated, preventing accidental stops and complying with ISO 13850 and IEC 60204-1 safety requirements for machine guarding.
    • Designed with a secure "turn-to-release" mechanism, this button remains latched in the depressed position until a deliberate clockwise twist is applied. This prevents the machine from being restarted prematurely or accidentally, ensuring that the operator must physically acknowledge the cleared hazard before the control circuit can be re-energized.
    • Featuring the legendary Harmony XB4 metal construction, this 22mm modular unit is built for extreme durability. With IP66, IP67, IP69, and IP69K ratings, it is completely dust-tight and resistant to high-pressure hot water jets, making it the ideal choice for food processing, automotive, and heavy manufacturing sectors where chemical exposure and physical impacts are common.
    • The Schneider Harmony XB4 series uses a modular mounting collar system that allows for tool-free contact block replacement once the base is installed. This reduces maintenance downtime significantly; if a contact block wears out, you can simply snap on a new ZBE102 block without having to replace the entire mushroom head or rewire the panel from scratch.

    Documentation & Downloads

    Specifications

    Additional

    Rated Operational Current
    3 A at 240 V AC-15, 6 A at 120 V AC-15, 0.1 A at 600 V DC-13, 0.27 A at 250 V DC-13, 0.55 A at 125 V DC-13, 1.2 A at 600 V AC-15 IEC 60947-5-1
    Rated Insulation Voltage (Ui)
    600 V IEC 60947-1
    Short-Circuit Protection
    10 A cartridge fuse gG IEC 60947-5-1
    Electrical Durability
    1,000,000 cycles AC-15 and DC-13 IEC 60947-5-1 appendix C
    Resistance to High Pressure Washer
    7,000,000 Pa (1015 psi) at 55 °C, 0.1 m
    Operating Temperature Range
    -40 to 70 °C (-40 to 158 °F)
    NEMA Degree of Protection
    NEMA 13, NEMA 4X
    Vibration Resistance
    5 gn (2 to 500 Hz) IEC 60068-2-6
    Height
    47 mm (1.85 in)
    Depth
    82 mm (3.23 in)
    Net Weight
    0.118 kg (0.26 lb)
    Shape Of Screw Head
    Cross Philips No 1, Cross Pozidriv No 1, Slotted Flat Ø 4 mm, Slotted Flat Ø 5.5 mm
    Fixing Collar Material
    Zamak
    Operator Profile
    Red mushroom ø 40 mm, unmarked
    Electrical Shock Protection Class
    Class I IEC 60536
    Positive Opening
    With IEC 60947-5-1 appendix K
    Mercury Free
    Yes
    RoHS Exemption Information
    Yes
    Environmental Disclosure
    ENVPEP2201004EN
    Country of Origin
    Czech Republic
    Device Short Name
    XB4
    Conventional Free Air Thermal Current (Ith)10 A IEC 60947-5-1
    Rated Impulse Withstand Voltage (Uimp)6 kV IEC 60947-1
    Mechanical Durability300,000 cycles
    Contact OperationSlow-break IEC 60947-5-1
    Voltage RatingUp to 600 V
    IP Degree of ProtectionIP66, IP67, IP69, IP69K IEC 60529
    IK Degree of ProtectionIK06 IEC 50102
    Shock Resistance30 gn (18 ms) and 50 gn (11 ms) half sine wave IEC 60068-2-27
    Width40 mm (1.57 in)
    Mounting Diameter22.5 mm
    Tightening Torque0.8 to 1.2 N·m (7.08 to 10.62 lbf·in) IEC 60947-1
    Bezel MaterialChromium plated metal
    Contacts MaterialSilver alloy (Ag/Ni)
    ResetTurn to release
    Shape Of Signaling Unit HeadRound
    Product CertificationsCSA, BV, UL listed, Lloyds Register of Shipping, GL, DNV
    Toxic Heavy Metal FreeYes
    REACH ComplianceFree of Substances of Very High Concern above threshold
    Circularity ProfileENVEOLI2201004EN
    Range Of ProductHarmony XB4
    Product TypeEmergency stop push-button

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