Overview
The Dayton 30G250 is a 22mm non-illuminated emergency stop push button designed for industrial control circuits and safety-critical applications. Featuring a 40mm red mushroom head with push/pull-trigger release action, this switch provides both 1NO (normally open) and 1NC (normally closed) contacts for flexible circuit design. The combination contact form enables operators to simultaneously activate and deactivate circuits as needed in emergency shutdown scenarios.
Key Features
- Contact Rating: 10A @ 600V AC
- Action Type: Push/Pull – Trigger Release
- Mushroom Head: 40mm mushroom head design in red for immediate visibility and ergonomic grip
- Contact Form: 1NO/1NC combination contacts
- Enclosure Ratings: NEMA 1, 2, 3, 4, 4X, 12, 13 for indoor and outdoor installations
- Bezel Material: Plastic bezel with plastic operating head
Technical Specifications
- Size: 22mm threaded panel mount
- Head Material: Nitrile rubber mushroom head
- Contact Rating Designation: NEMA A600/Q600
- Terminal Connection: Pressure plate terminals
- Standards Compliance: CE, CSA, IEC, UL certified
- Color: Red with white legend space (legend not included)
- Mounting: Front panel threaded, 22mm mounting hole
Typical Applications
The Dayton 30G250 is widely used in:
- Industrial control panel emergency shutdown circuits
- Machine tool and manufacturing equipment safety stops
- HVAC and pump station emergency cutoff systems
- Material handling and conveyor belt safety systems
- Electrical distribution and motor control applications
- Any enclosure requiring NEMA 1/2/3/4/4X rated emergency stop functionality
Compatibility & Replacements
Compatible With
- Standard 22mm pushbutton mounting holes in control panels
- IEC 60947-1 compliant control circuits
- Industrial control relays and contactors rated for 10A circuits
- Siemens, Allen-Bradley, Schneider Electric, and other major automation platforms
- Both AC and DC control circuits up to 600V
Replaces / Drop-In Replacement For
- Dayton 30G251 (chrome bezel variant)
- Other 22mm 1NO/1NC emergency stop buttons with identical mounting specifications
Works With
- Any control system using standard 22mm emergency stop mounting convention
- Pressure plate terminal block connections on relay racks and control panels
- Hardwired safety circuits and electromechanical control logic


















