Schneider Electric Harmony XB4 Series Turn to Release Emergency Stop Push Button, 22.5 mm Cutout, 2 NC, IP66, IP69K,

RS Stock No.:: 346-840
Mfr. Part No.:: XB4BS8444S47
Brand:: Schneider Electric

Schneider Electric Harmony XB4 Series Turn to Release Emergency Stop Push Button, 22.5 mm Cutout, 2 NC, IP66, IP69K,

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£74.82

(exc. VAT)

£89.78

(inc. VAT)

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Ready to ship from 15 June 2026

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Complete Your Emergency Stop Assembly with SE Push Button Contact Blocks

Achieve dependable emergency shutdown performance by pairing Schneider Electric emergency stop push buttons with certified push button contact blocks — precision-engineered for safety and compliance.

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RS Stock No.:: 346-840
Mfr. Part No.:: XB4BS8444S47
Brand:: Schneider Electric

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Schneider Electric
	Product Type	Emergency Stop Push Button
	Cutout Diameter	22.5mm
	Contact Configuration	2 NC
	Housing Material	Chrome Plated Metal
	Push Button Actuation	Turn to Release
	Illuminated	No
	Series	Harmony XB4
	IP Rating	IP66, IP69K, IP69
	Colour	Red
	Terminal Type	Screw Clamp
	Head Style	Standard
	Contact DC Voltage	600V dc
	Contact AC Voltage	600V ac
	Depth	82mm
	Standards/Approvals	UL 508, IEC 50102, IEC 60947-5-1, CSA C22.2 Nr. 14, IEC 60529, IEC 60364-5-53, IEC 60068-2-6, IEC 60068-2-27, IEC 60536, IEC 60947-5-4, JIS C8201-1, IEC 60947-1, ISO 13850, JIS C8201-5-1, IEC 60947-5-5, IEC 60204-1
	Head Diameter	40mm
	Length	47mm
	Hazardous Area Certification	NO
	Width	40mm
	Push Button Material	Zamak

	Select all
	Brand Schneider Electric
	Product Type Emergency Stop Push Button
	Cutout Diameter 22.5mm
	Contact Configuration 2 NC
	Housing Material Chrome Plated Metal
	Push Button Actuation Turn to Release
	Illuminated No
	Series Harmony XB4
	IP Rating IP66, IP69K, IP69
	Colour Red
	Terminal Type Screw Clamp
	Head Style Standard
	Contact DC Voltage 600V dc
	Contact AC Voltage 600V ac
	Depth 82mm
	Standards/Approvals UL 508, IEC 50102, IEC 60947-5-1, CSA C22.2 Nr. 14, IEC 60529, IEC 60364-5-53, IEC 60068-2-6, IEC 60068-2-27, IEC 60536, IEC 60947-5-4, JIS C8201-1, IEC 60947-1, ISO 13850, JIS C8201-5-1, IEC 60947-5-5, IEC 60204-1
	Head Diameter 40mm
	Length 47mm
	Hazardous Area Certification NO
	Width 40mm
	Push Button Material Zamak

COO (Country of Origin):: CZ

Schneider Electric Harmony Series Emergency Stop Push Button, 22.5mm Cutout Diameter, 2NC Contact Configuration - XB4BS8444S47

This emergency stop push button is an essential safety component, designed to enhance operational security in various industrial settings. With a 22.5mm cutout diameter, it features a mushroom shape for intuitive use. This robust switch operates at a voltage rating of 600 V and adheres to an IP rating of IP66, IP69, and IP69K for high protection against dust and water ingress.

Features & Benefits

• Turn to release mechanism enhances safety and convenience
• 2NC contact configuration allows for reliable switching
• Compatible with a range of applications in automation and industry
• Designed for a supply current of 3 A, suitable for various setups

Applications

• Utilised in emergency shutdown systems for machinery
• Used for safety control in PLC and automation processes
• Applicable in settings requiring Rapid operator intervention
• Essential for industrial environments with high ingress protection needs
• Integrated into control panels across electrical installations

What is the significance of the mushroom shape design in the push button?

The mushroom shape allows for easy identification and operation, ensuring quick access during emergencies. This design aids users in rapidly locating the button, enhancing safety in critical situations.

How does the contact configuration impact the function of the switch?

The 2NC (normally closed) configuration ensures that the circuit is interrupted when the button is activated, providing a clear and immediate response in emergency scenarios, which is VITAL for safety.

What environments are suitable for this type of emergency stop switch?

It is suitable for harsh industrial environments, including those with exposure to dust and water, due to its high IP66, IP69, and IP69K ratings, ensuring reliable operation even under difficult conditions.

What is the maximum operational voltage for this safety switch?

The switch is rated for a maximum operational voltage of 600 V, making it suitable for a variety of industrial applications and ensuring compatibility with numerous electrical systems.

How does the supply current specification affect its application?

With a supply current rating of 3 A, it can efficiently handle various electrical loads, making it adaptable for different industrial applications while ensuring safe operation.