16/19/22mm Waterproof Metal Push Button Switch | 2NO2NC Self-Locking Automotive Engine Power Switch

This metal push button switch is designed for reliable control in demanding environments. It works with a wide voltage range from 3V to 220V, making it suitable for automotive, marine, and industrial applications. The switch is waterproof and built to last.

Choose between self-locking (latching) and reset (momentary) actions for flexible operation. Available in three mounting hole sizes (16mm, 19mm, 22mm) and three LED colors (red, green, blue), this switch offers a secure and tactile feel for powering engines, machinery, or custom projects.

Constructed from a durable metal alloy, this switch resists corrosion and wear. The 2NO2NC contact configuration provides versatile control options for both normally open and normally closed circuits.

Easy to install with a standard panel mount, this switch is a practical upgrade for any control panel or dashboard. It is a direct replacement for many common automotive and industrial push button switches.

Key Features and Benefits

- Waterproof metal construction that resists moisture and dust, ensuring long-lasting performance in tough conditions.

• Wide voltage compatibility (3V to 220V) that works with low-voltage electronics, car systems, and standard household circuits.

• Self-locking and reset action options that let you choose between a latching switch or a momentary push button.

• Multiple mounting sizes (16mm, 19mm, 22mm) that fit a variety of panel holes and applications.

• Bright LED ring (red, green, or blue) that provides clear visual status indication in any light.

Who Is This For

- Car and truck owners needing a reliable engine start or accessory power switch.

• Boat and marine enthusiasts looking for a waterproof control switch for bilge pumps or navigation lights.

• DIY electronics hobbyists building custom control panels for workshops or projects.

• Industrial technicians replacing worn-out push button switches on machinery and equipment.

Usage Scenario

Mark was wiring a custom off-road lighting system for his Jeep. He needed a switch that could handle the vibration and mud. After installing this 22mm metal push button switch, the lights worked perfectly. The waterproof seal gave him confidence driving through streams, and the bright green LED let him know the lights were on even in daylight.

Micro Comparison

Unlike plastic switches that can crack or fail in wet conditions, this metal alloy switch is built to handle moisture and impact. It offers a wider voltage range than many standard car switches, so you can use it for both 12V automotive and 24V industrial applications without worry.

Specifications

Material: Metal alloy

Switch Type: Push button switch

Contact Configuration: 2NO2NC

Current Rating: 3A

Voltage Rating: 3V to 220V AC/DC

Action: Self-locking (latching) or reset (momentary)

LED Colors: Red, Green, Blue

Mounting Hole Sizes: 16mm / 0.63 in, 19mm / 0.75 in, 22mm / 0.87 in

Warranty: 1 year

Package Includes

- 1 x Metal push button switch

• 1 x Mounting nut

• 1 x Waterproof gasket

Why You Will Love It

This switch gives you the confidence of a reliable, waterproof control for your most important projects. Its sturdy metal feel and bright LED indicator make every press satisfying and clear. You will appreciate the easy installation and the peace of mind that comes from a durable, well-made component.

Questions and Answers

Question: Is this switch suitable for a 12V car battery?

Answer: Yes, this switch works with 12V DC systems and is ideal for automotive use.

Question: Does the switch come with a wiring diagram?

Answer: The switch does not include a wiring diagram, but the 2NO2NC terminals are clearly labeled for easy connection.

Question: Can I use this switch for a 220V household light?

Answer: Yes, the switch is rated for up to 220V AC, so it can control household lights.

Question: Is the LED always on or does it turn on with the switch?

Answer: The LED lights up when the switch is in the ON position, providing a clear visual status.

Question: What is the difference between the 16mm, 19mm, and 22mm versions?

Answer: The numbers refer to the diameter of the mounting hole you need to drill. Choose the size that matches your panel.