Product Category


19MM Metal Keyed Switch 3 Pin Push Button Switch

  1. Name:Key Lock Push Button Switch
  2. Mode: FLM19-11KJ
  3. Head Type:Flat Head
  4. Voltage: 2V, 3V, 5V, 6V, 12V, 24V, 110V, 120V, 220V, 250V, 380V
  5. Current: 5A
  6. Material: Copper, Stainless Steel
  7. Download Certification: UL,CE,RoHS,CB,CCC
  8. Waterproof grade: IP65
  9. Wire specification: AGW22
  10. Email:
  11. Download PDF: 19mm metal round lock push button key switch

Product Drawings:


A keyed switch is an electrical switching device that uses one of the manufacturer’s matching keys to control the switching status of a device’s circuit.

This keyed switch usually has two or three positions, each of which corresponds to a different circuit state or a different function of the device. Only by inserting the correct key and rotating the switch to a specific position can the associated circuit be opened or closed.

Product Parameters:

Production Series FLM19-11KJ Light Guide Button
Button Shape round Actuator 304 Stainless steel
Button LED Color Housing Sleeve H59 nickel plated brass/304Stainless steel
Mechanical Life The 500 thousand time Button Pin H62 copper alloy
Electrical Life The 100 thousand time Rubber Ring SIL silica gel
Protection Level IP65 IK08 Nut H59 nickel plated brass
Rated Voltage 36V(DC)250V(AC) Housing PA66+GF20% nylon
Rated Current 1A(DC)5A(AC) Light Source
Rated Power 180W(DC)1250W(AC) Resistor Metal film
Operating Temperature -25℃~+85℃ Contact AgCdO12

Push Button Switch Wiring Method:

There are two connection ways, as follows.

  1. The normally open wiring way, press it, the load is energized, press it again, the load is blackout.

2. The normally closed wiring way, the product is energized, the load is energized, press down the push-button, the load is blackout.


FILN Pushbutton Switch Customization

With its wide range of applications, the push button key switch is suitable for use in electronics, appliances, automobiles, machinery, computers, access control systems, and more. Please refer to the picture below for a visual representation.

how to install push button start without key

Related products:

The keyed switch and the push button switch differ in operation and function.
The following are the main differences between them:

Different operation methods: Keyed switch requires the use of a key to operate, while push button switch only requires the push of a button. keyed switch usually requires the rotation of a key to change the switch position, while push button switch only requires the push or release of a button to switch the switch state.

Access restrictions are different: Keyed switches are usually equipped with two keys, one for daily use and one as a spare key or stored in the hands of two people, and only the correct key can be used to operate the switch. A push button switch, on the other hand, usually has no access restrictions, and anyone can push the button to change the switch state.

Different switch states: Keyed switches usually have two or more fixed positions, and each position of the internal parts corresponds to a different circuit state or function of the device. Turning the key toggles to a different position. The push button switch usually has two states: open when pressed and closed when released. However, there are many functions of push button switch, such as latching push button switch and momentary push button switch.

Different application areas: Keyed switches are commonly used in security systems, electronic devices, and automobiles where security control is required, such as access control systems, etc. Push button switches are commonly used in various applications, including electronic devices, machine control, lighting, etc.

In general, the main differences between a keyed switch and a push button switch are the mode of operation, access restrictions, switch status, and application areas. The push button switch is operated by pressing a button and is commonly used in a variety of applications.

The Description of the 19MM Metal Round Keyed Switch

This metal keyed switch features a 19mm mounting diameter and operates as a self-locking type. It is designed for various applications and provides reliable functionality in harsh environments.

The switch has a rated voltage of 4A, accommodating AC/DC3V-220V. It offers excellent protection with an IP66/IK90 rating, ensuring resistance to water and high impact. The built-in waterproof sealing ring enhances its waterproof capabilities.

The base material, made of PA66, is known for its temperature resistance and flame retardant properties, making it suitable for demanding environments. The shell material options include stainless steel and copper-plated nickel.

The stainless steel variant employs durable 304 stainless steel, offering resistance to oxidation, effective flame retardancy, and a longer service life. On the other hand, the copper-plated nickel variant features an attractive appearance after plating treatment and is often used in test equipment and automation devices. It also provides cost-effectiveness compared to the other two materials.

The push button key utilizes silver contacts, ensuring excellent conductivity. The contact form options include 1NO1NC (single-pole, single-throw, and single-pole, double-throw) and 2NO2NC (double-pole, double-throw).


Description of the Function of the Metal Keyed Switch:

FILN keyed switch has the same two functions of self-locking and self-resetting.

Self-locking push button key means that if you turn the key with your finger, the contact point of the key will not return automatically and the machine is energized.

If the key is turned back, the push button switch will be closed and the machine will be powered off.

How to Get a Sample of Keyed Switch:

If you are interested in our keyed switch products or have specific requirements, we encourage you to inquire by emailing us at Our dedicated sales team will promptly respond to your email, providing you with the best services and competitive prices.


For customers with smaller purchase quantities, you can conveniently place your order on our website at Rest assured that we will arrange same-day delivery for your order.

filn sales-team

Now, let’s discuss the available payment methods for your purchase. Our company accepts several payment options to accommodate your needs. You can choose from PayPal, T/T (bank transfer), or West Union for completing your payment.

We strive to provide a seamless purchasing experience for our valued customers, and we look forward to serving you with our high-quality keyed switch products. Feel free to reach out to us with any further inquiries or specific requirements you may have.

How to Ensure the Quality of the Keyed Switch?

The waterproof push-button switch of Filn had passed the certifications of UL, CE, RoSH, ISO90001. Besides, it also has a professional push-button switch testing laboratory, which can ensure the product’s quality.

Filn has 11 years of experience in push-button producing and also has a professional research and development technology team.

Except for this push button key, Filn also produces other different types of push-button switches, such as indicator lights, rocker switches, smart touch screens, etc. If you want to know more, please visit our homepage.

Indicator manufacturer

Inquiry Now