Overview
The Dayton 30G251 emergency stop push button is a robust, industrial-grade e-stop switch designed for machinery safety shutdown and control applications. This non-illuminated pushbutton features a distinctive 40mm red mushroom operator head, making it instantly recognizable and compliant with international safety standards for emergency stop applications. The unit provides reliable contact switching in harsh industrial environments and comes in a lot of 3 for convenient stocking and replacement.
Key Features
- 40mm red mushroom head operator—highly visible and ergonomic for panic activation
- 22mm mounting size fits standard pushbutton cutouts and control panel cavities
- 1NO/1NC dual contact form enables both normally open and normally closed circuit logic
- Maintained push/pull trigger release action ensures accidental resets do not occur
- Chrome die-cast aluminum bezel for corrosion resistance and durability
- Nitrile rubber head material withstands oils, chemicals, and temperature extremes
Technical Specifications
- Contact Rating: 10A @ 600V AC (A600/Q600 designation)
- Contact Form: 1 NO / 1 NC (dual circuit)
- Operator Type: 40mm Mushroom Head
- Action Type: Push / Pull—Trigger Release (Maintained)
- Mounting Size: 22mm
- Head Material: Nitrile Rubber
- Bezel Material: Chrome Die Cast Aluminum
- Head Color: Red
- Terminal Connection: Pressure Plate
- NEMA Rating: 1, 2, 3, 4, 4X, 12, 13
- Standards: UL, CSA, CE, IEC
- Weight per Unit: 0.3 lb
Typical Applications
- Industrial machinery emergency stop circuits
- Manufacturing equipment safety interlocks
- Power press and fabrication equipment shutdowns
- Conveyor systems emergency halt functions
- HVAC and motor control safety circuits
- Process automation emergency shutdown panels
Compatibility & Replacements
Compatible With
- Standard 22mm pushbutton control stations and cutouts
- Pressure plate terminal blocks and wiring connections
- Industrial control relays and safety circuits rated for 10A @ 600V AC switching
- NEMA 1, 2, 3, 4, 4X, 12, 13 rated enclosures and panels
- 24V DC and 120/240V AC control circuits (contact rating limits apply)
Replaces / Drop-In Replacement For
- Dayton 30G251 (direct equivalent in lots of 1, 2, or greater)
- Other 22mm red mushroom head e-stop pushbuttons with 1NO/1NC contact form and 10A @ 600V rating
Works With
- Pneumatic and hydraulic control circuits with electrical override
- PLC and industrial controller emergency stop input modules
- Hard-wired safety relay circuits
- Motor starter magnetic contactor circuits
- Standard DIN rail and panel-mounted control architectures
