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Red 40 mm mushroom emergency stop button with metal bezel for 22 mm panel cut-out

Schneider Electric

Schneider Electric XB4BS8444 22 mm 40 mm Emergency Stop Push Button Red

SKU CH-NGFR-EZHC9

Red 40 mm emergency-stop mushroom button with metal bezel, latched turn-to-release action, 22 mm panel cut-out and IP66/IP67/IP69/IP69K sealing

  • Engine BrandSCHNEIDER ELECTRIC
  • Engine Size22 mm
  • Instant emergency shutdown with 40 mm mushroom head
  • Clear visual identification from a distance with red colour
  • Reliable operation in harsh conditions with IP66 IP67 IP69 IP69K ratings
  • Simple installation into standard 22 mm panel cut-outs
  • Secure screw-clamp wiring for dependable connections

Emergency Stop Push Button for 22 mm Cut-outs

This Schneider Electric Harmony XB4 emergency stop button fits standard 22 mm panel cut-outs. The red 40 mm mushroom head provides clear visual identification at a distance. It uses a latched turn-to-release mechanism for deliberate reset. The unit carries IP66, IP67, IP69 and IP69K ratings for harsh environments.

Verify Panel Cut-out and Contact Requirements

Confirm your panel has a 22 mm diameter cut-out for mounting. The switch body provides two normally closed contacts, so ensure your safety circuit requires exactly 2NC wiring. Screw-clamp terminals accept standard wire sizes, but verify your wire gauge suits the clamps. The metal bezel requires a grounded panel or separate earth connection.

Metal Bezel and IP-Rated Sealing for Daily Use

The metal bezel resists impact, dust, water and vibration in demanding industrial settings. High IP ratings mean the button withstands high-pressure wash-down and temporary immersion. The prominent mushroom shape allows easy actuation with gloved hands. Latched action prevents accidental restart until an operator deliberately turns the head to release.

Highlights

  • Instant emergency shutdown with 40 mm mushroom head
  • Clear visual identification from a distance with red colour
  • Reliable operation in harsh conditions with IP66 IP67 IP69 IP69K ratings
  • Simple installation into standard 22 mm panel cut-outs
  • Secure screw-clamp wiring for dependable connections

Specifications

Engine BrandSCHNEIDER ELECTRIC
Engine Size22 mm

Questions about this item

Does the XB4BS8444 come with the 22 mm mounting nut and seal, or must they be ordered separately?

The push-button ships as a complete unit ready for a standard 22 mm panel cut-out; the metal bezel and sealing are integrated, so no separate mounting hardware is required for installation.

The listing shows 2NC contacts — is there a version with different contact blocks for this 40 mm mushroom head?

The XB4BS8444 is supplied with two normally-closed contacts; other contact configurations exist in the Harmony XB4 range but are separate part numbers, not variants of this specific 8444 reference.

What do the IP66, IP67, IP69 and IP69K ratings mean for daily use on a machine panel?

The ratings confirm the button withstands powerful water jets, temporary immersion and high-pressure, high-temperature wash-downs, so it remains reliable in wet, dusty or vibration-heavy industrial environments.

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