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Red 22 mm emergency stop push button with 40 mm mushroom head

Dayton

Dayton 30G248 22 mm Emergency Stop Push Button 1NC Red

SKU CH-0Z51-SQ3BA

22 mm maintained emergency stop with 40 mm mushroom head, 1NC contact rated 10 A at 600 V AC and NEMA 1, 2, 3, 4, 4X, 12, 13 protection

  • TypeIndustrial Electrical Controls & Automation
  • Size22 mm
  • 22 mm cut-out fits standard panels
  • 40 mm mushroom head enables fast emergency actuation
  • 1NC contact rated 10 A at 600 V AC breaks power reliably
  • NEMA 1, 2, 3, 4, 4X, 12, 13 ratings suit harsh environments
  • cULus listing confirms compliance with safety standards

22 mm Emergency Stop Button

The Dayton 30G248 is a 22 mm emergency stop push button designed for industrial electrical control panels. It uses a maintained-action mechanism with a 40 mm mushroom head made from nitrile rubber. The single operator provides one normally closed contact for safety circuits.

Contact rating and NEMA ratings

The contact is rated at 10A at 600V AC with an A600/Q600 NEMA designation. The device carries NEMA type 1, 2, 3, 4, 4X, 12 and 13 ratings for enclosure protection. It is not suited for applications requiring multiple contacts or normally open configurations.

Thermals and installation notes

The plastic bezel and pressure-plate terminals simplify wiring in standard enclosures. No active cooling or power supply is needed for the mechanical switch itself. The unit complies with cULus standards and carries California Proposition 65 warnings for chemical exposure.

Highlights

  • 22 mm cut-out fits standard panels
  • 40 mm mushroom head enables fast emergency actuation
  • 1NC contact rated 10 A at 600 V AC breaks power reliably
  • NEMA 1, 2, 3, 4, 4X, 12, 13 ratings suit harsh environments
  • cULus listing confirms compliance with safety standards

Specifications

BrandDAYTON
TypeIndustrial Electrical Controls & Automation
Size22 mm

Questions about this item

Will the 22 mm emergency stop button fit into the existing 22 mm panel cut-outs on my older control enclosure?

Yes, the 22 mm size matches standard industrial panel cut-outs, so it installs directly into the same openings used by older 22 mm operators without drilling new holes.

How can I verify the maintained action and 1NC contact are functioning correctly after wiring the pressure-plate terminals?

Press the red 40 mm mushroom head; it should latch in the down position. Use a multimeter on the 1NC terminals — the circuit opens when latched and closes again only after you twist or pull the head to reset.

Does the package include a legend plate or mounting hardware, or must I order those separately?

The supplier description lists "Legend No Legend", so no legend plate is included. Mounting hardware for the plastic bezel is typically supplied with the operator, but a legend plate must be purchased separately.

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