In any industrial environment, safety isn‘t just a feature—it’s the foundation of operations. When an emergency arises, the ability to instantly and reliably halt machinery can mean the difference between a near-miss and a catastrophic incident. This is where the emergency stop switch proves its critical value. Our series of 16mm, 19mm, and 22mm Metal Emergency Stop Buttons with mushroom heads are engineered to serve as the fail-safe point in your control systems, delivering unmatched durability and peace of mind in the most demanding conditions.
What Makes This Emergency Stop Switch Different?
This is more than just a button—it‘s a purpose-built safety device designed to perform under pressure. Let’s break down the key features that make it the preferred choice for engineers and safety managers alike.
Three Universal Mounting Sizes for Maximum Compatibility
Available in three industry-standard mounting diameters—16mm, 19mm, and 22mm—this emergency stop switch integrates seamlessly into a wide range of control panels, machinery, and equipment. Whether you‘re working with CNC machines, conveyor systems, or industrial automation panels, you’ll find a size that fits your specific requirements.
Classic Red Mushroom Head: Instantly Recognizable
The large, prominent red mushroom head is designed for panic-button operation. In emergency situations, every second counts—the bright red color makes it instantly identifiable, allowing operators to react quickly without hesitation. The maintained (latching) operation type means the switch stays in the “stop” position once activated until it’s manually reset, preventing accidental restart before the hazard is cleared.
Built to Last: Full Metal Construction
Constructed from premium materials including a full metal bezel and brass shell, this switch is engineered to withstand physical impact, vibration, and corrosion. The integrated waterproof design ensures that dust, oils, and moisture cannot compromise its internal mechanism—making it ideal for outdoor use and demanding industrial settings like manufacturing plants and wash-down areas.
Multiple Contact Configurations for Flexible Circuit Design
Available in two contact combinations—1NO+1NC and 2NO+2NC—this switch accommodates different circuit requirements. The gold-plated pin material ensures excellent conductivity, anti-oxidation, and long service life. With low contact resistance (≤50MΩ), you get stable and sensitive electrical performance every time.
Technical Specifications at a Glance
Here‘s a quick reference for the key specifications that matter to design engineers and procurement specialists:
| Feature | Specification |
|---|---|
| Mounting Diameters | 16mm / 19mm / 22mm |
| Head Type | Mushroom Head (Red) |
| Operation Type | Maintained (Latching)—stays engaged until manually reset |
| Contact Combinations | 1NO+1NC / 2NO+2NC |
| Rated Current | 5A |
| Rated Voltage | 1.5V~250V AC/DC |
| Contact Resistance | ≤50MΩ |
| Bezel Material | Metal |
| Shell Material | Brass |
| PIN Material | Gold-plated |
| Connection Type | Plug-in (fast wiring, easy replacement) |
Where Is This Emergency Stop Switch Used?
This versatile safety component is the ultimate sentinel for a wide range of applications across industries:
Industrial Machinery: Presses, CNC machines, assembly lines, and robotic work cells
Outdoor and Commercial Equipment: Large-scale agricultural machinery, generator sets, and outdoor power units
Control Panels: Master stop on main electrical enclosures and operator stations
Automation Systems: Manufacturing plants, conveyor belts, and automated production lines
The robust construction ensures reliable performance even in dusty, humid workshops and outdoor environments where standard switches would quickly fail.
Frequently Asked Questions
1. What mounting sizes does this switch support?
It supports three common panel mounting diameters: 16mm, 19mm, and 22mm, making it compatible with most industrial control panels and equipment.
2. What is the operation mode?
It uses a maintained (latching) operation type. Once pressed, it stays in the “stop” position until manually reset—essential for formal safety protection where equipment cannot be accidentally restarted.
3. Is this switch waterproof?
Yes, the switch features a waterproof metal brass housing, making it suitable for humid workshops, outdoor applications, and environments exposed to dust and moisture.
4. What contact configurations are available?
Two configurations are offered: 1NO+1NC and 2NO+2NC, allowing flexibility for different control circuits.
5. What are the electrical specifications?
The switch is rated at 5A current with a wide voltage range of 1.5V~250V AC/DC, compatible with most control systems. Contact resistance is ≤50MΩ.
6. What materials are used in construction?
The shell is made of brass, the bezel is metal, and the pins are gold-plated, providing anti-rust, anti-oxidation, and excellent durability properties.
Why Choose This Emergency Stop Switch?
Choosing the right emergency stop device is a critical decision that directly impacts operational safety and regulatory compliance. This series of 16/19/22mm metal emergency stop switches delivers:
Superior Durability: Brass waterproof shell and full metal bezel provide exceptional pressure resistance, corrosion resistance, and waterproof performance
Reliable Safety: Maintained latching mode ensures stable emergency power cut-off and prevents accidental restart
Design Flexibility: Three mounting sizes and two contact configurations meet various panel and circuit requirements
Long-term Performance: Gold-plated pins ensure anti-oxidation and stable connections; low contact resistance guarantees sensitive response
Wide Compatibility: Broad voltage range (1.5V~250V AC/DC) and 5A current rating work with most conventional control systems
Conclusion
Whether you‘re designing a new control panel, upgrading existing machinery, or sourcing components for industrial automation projects, this emergency stop switch offers the robust construction, reliable performance, and essential safety features you need. Don’t compromise on safety—equip your equipment with a switch that delivers when it matters most. With three versatile sizes, waterproof metal construction, and proven maintained operation, this is the emergency stop solution that protects both your personnel and your equipment.
Ready to enhance your machinery safety? The 16mm, 19mm, and 22mm metal emergency stop switches are available now for quick shipping. Contact our sales team to discuss your specific mounting size and contact configuration requirements.
