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Red mushroom-head emergency stop button, 22 mm chrome bezel, 40 mm metal head

Schneider Electric

Schneider Electric XB4BS8445 22 mm Emergency Stop Push Button 1NO/1NC Red

SKU CH-NWHG-V05HJ

A 22 mm red emergency stop button with a 40 mm metal mushroom head, maintained action, 1NO/1NC contacts rated at 10 A and 600 V AC, and NEMA 1, 2, 3, 4, 4X, 12, 13 plus IP66, IP67.

  • TypeIndustrial Electrical Controls & Automation
  • Size22 mm
  • Instant emergency stop with maintained action
  • 22 mm panel cut-out fits standard industrial enclosures
  • 1NO/1NC contacts rated 10 A at 600 V AC
  • Metal mushroom head withstands harsh environments
  • IP66 IP67 IP69 IP69K and NEMA 1 2 3 4 4X 12 13 sealing

22 mm Emergency Stop Button

Schneider Electric XB4BS8445 is a 22 mm emergency stop push button with a maintained action and a 40 mm metal mushroom head. It provides one normally open and one normally closed contact rated at 10 A at 600 V AC. The chrome-plated zinc die-cast bezel and red colour meet standard industrial identification requirements. The single operator is rated NEMA 1, 2, 3, 4, 4X, 12, 13 and IP66, IP67, IP69, IP69K for harsh environments.

Suited for safety circuits needing maintained stop

This button suits panels requiring a maintained-action emergency stop with a single 1NO/1NC contact block and high ingress protection. It fits a standard 22 mm cut-out and matches legacy Schneider Electric mounting patterns. Buyers needing momentary action, additional contact blocks, illuminated heads or a different head diameter should look at other models.

22 mm mounting cut-out decides fit

The 22 mm panel cut-out is the single specification that determines whether this operator fits the enclosure. Verify the cut-out size before ordering; no other dimension in the data governs mechanical compatibility.

Highlights

  • Instant emergency stop with maintained action
  • 22 mm panel cut-out fits standard industrial enclosures
  • 1NO/1NC contacts rated 10 A at 600 V AC
  • Metal mushroom head withstands harsh environments
  • IP66 IP67 IP69 IP69K and NEMA 1 2 3 4 4X 12 13 sealing

Specifications

BrandSCHNEIDER ELECTRIC
TypeIndustrial Electrical Controls & Automation
Size22 mm

Questions about this item

How do I install the 22 mm emergency stop push button and which step is often missed?

Mount the 22 mm operator through the panel cut-out, secure the chrome-plated zinc die-cast bezel, then wire the 1NO/1NC contacts to the 10 A / 600 V AC circuit; the step often missed is tightening the bezel enough to maintain the IP66, IP67, IP69 and IP69K seal.

What maintenance or replacement will the red mushroom head need later?

Inspect the metal 40 mm mushroom head and maintained-action mechanism periodically; replace the complete operator if the head shows deformation, the latch fails to hold, or the IP-rated seals deteriorate.

What limit appears first during sustained use of the 1NO/1NC contacts?

The contact rating of 10 A at 600 V AC is the first limit; continuous loading near that value will accelerate contact wear before the NEMA 1, 2, 3, 4, 4X, 12, 13 enclosure ratings become a factor.

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