16mm Push Button Power Switch | Stainless Steel Momentary 4-Pin LED | FILN

Button Switch DrawingProduct Overview

The FLM16-FJ-2-E is a high-performance 16mm metal push button power switch designed for durability and precision. Manufactured by FILN, a leading factory specializing in industrial switches, this product features a sleek stainless steel flat head and a vibrant LED ring indicator. With certifications including ISO9001, CE, VDE, RoHS, SGS, UL, and IP65, it ensures safety and reliability across various sectors. This momentary push button switch is ideal for industrial control panels, medical devices, and automation equipment. Its 4-pin terminal design allows for easy installation and synchronized LED feedback, making it a top choice for B2B procurement and global engineering projects.

Quick Specifications

Model Number	FLM16-FJ-2-E
Mounting Diameter	16mm / 0.63 inch
Operation Type	Momentary (Self-reset)
LED Color	R/G/Y/B/W (Bi-color/Tri-color customizable)
Head Shape	Flat Head
Terminal Type	4-Pin Solder Terminal (Pin Terminal)

Performance Parameters

Rated Voltage	36V DC / 250V AC
Rated Current	5A DC / 5A AC
Contact Resistance	< 50mΩ
Insulation Resistance	≥ 1000MΩ
LED Voltage Range	3V - 220V
Product Certifications	ISO9001, CE, VDE, RoHS, SGS, UL, IP65

Component Materials

Component	Material Specification
Button Head	304 Stainless Steel / 6063 Aluminum Alloy
Shell Sleeve	H59 Brass / 304 Stainless Steel
Button Pins	H62 Copper Alloy
Contacts	Silver Alloy (AgCdO12)
Base	PA66 + GF20% Flame Retardant Nylon

General Characteristics

Operating Temperature	-25°C to +85°C
Protection Level	IP65 Waterproof, IK08 Impact Resistance
Mechanical Life	500,000 Cycles
Electrical Life	100,000 Cycles (3A) / 50,000 Cycles (5A)

Key Features

• Superior Protection: Rated IP65 and IK08, making it resistant to water, dust, and heavy impact—perfect for harsh industrial environments.
• High Load Capacity: Supports 5A 250V AC/DC, allowing direct control of high-power devices without extra relays.
• Premium Materials: Crafted with 304 Stainless Steel for anti-corrosion and Silver Alloy contacts for minimal resistance and anti-arcing.
• Uniform Ring Light: Advanced LED design provides 360° uniform illumination, enhancing aesthetic and functional visibility in low light.
• Compact Pin Design: Standard 2.8x0.5mm 4-pin terminals allow for rapid soldering or harness connection, ideal for mass production.

Applications

This 16mm metal switch is widely used in Industrial control panels, CNC machines, Automation equipment, Electrical cabinets, Marine systems, and Medical devices. It serves as a reliable interface for any equipment requiring high-end tactile feedback and status indication.

Installation Guide

1. Panel Drilling: Drill a 16mm (0.63") diameter hole on your control panel.
2. Insertion: Insert the 16mm metal push button from the front side of the panel.
3. Securing: Fasten the provided metal nut from the back to lock the switch in place.
4. Wiring: Connect the 4 pins (Switch and LED) according to your desired circuit logic (Sync or Constant).

4-PIN LED Push Button Switch Wiring Guide

A 4-PIN switch consists of two parts: Switch Contacts (to control the device) and LED Terminals (marked with + and -). Below are two ways to wire the LED indicator.

• Horizontal Pins: The switch mechanism (Power In / Load Out).
• Vertical Pins (+ / -): The LED indicator light terminals.

Method 1: LED Synchronized with Device (On when Active)

Logic: The button light only turns ON when the device is running. It serves as a "Status Indicator."

• Wiring: Connect LED (+) to the Output side of the switch. LED (-) to Power Negative.
• Applications: Power start buttons, car fog lights, industrial machinery.
• Benefit: Saves power; provides visual feedback that the system is active.

Figure 1: LED turns ON only when button is pressed

Method 2: LED Always ON (Backlight Mode)

Logic: The button light stays ON constantly as long as there is power, regardless of the button position.

• Wiring: Connect LED (+) directly to the Power Positive. LED (-) to Power Negative.
• Applications: Dark environments, hallway switches, standby power indicators.
• Benefit: Allows you to find the switch easily in total darkness.

Figure 2: LED stays ON constantly (Backlight)

Mode	LED Status (Idle)	LED Status (Pressed)
Sync (Status)	OFF	ON
Always ON (Backlight)	ON	ON

Industry Knowledge

1. What is a 16mm Push Button Power Switch?

This is an electromechanical device used to control an electrical circuit. In industrial settings, the 16mm diameter is a standard size that balances space-saving on panels with ease of operation. The metal construction provides protection against environmental damage and vandalism.

2. Latching vs. Momentary Function

Feature	Momentary (Self-reset)	Latching (Self-lock)
Action	Springs back after release	Stays in position (clicks)
Common Use	Horns, Doorbells, PC Power	Light switches, Power main

LED Indicator Color Meanings

Color	Standard Industrial Meaning
Red	Emergency, Stop, Error, Power Disconnect
Green	Start, Run, Safety, System Normal
Blue	Service Required, Reset, Specific Function Mode
Yellow	Warning, Abnormal Condition, Pre-start
White	Power Status, General Illumination, Neutral Feedback

FILN Factory Direct Supply

• ✔️ MOQ: No minimum order quantity – Support for small projects.
• ✔️ Lead Time: Fast global shipping within 3-7 days.
• ✔️ Customization: Voltage (3V-220V), Wire Length, and Connectors.
• ✔️ Certification: Full CE / RoHS / UL compliance.

Get Free Sample Now

Official Website: www.filn.com
Contact Us: [email protected]

Frequently Asked Questions

1. What is the difference between pin terminals and screw terminals?
Pin terminals (like on this model) are compact and support high-speed soldering or plug-in wire harnesses, while screw terminals are larger and suitable for manual wiring in electrical cabinets.

2. Can I use this 16mm switch outdoors?
Yes, it has an IP65 waterproof rating, meaning it is protected against dust and low-pressure water jets from any direction.

3. Is the LED resistor built-in?
Yes, FILN integrates the metal film resistor inside the switch, so you can connect it directly to your specified voltage (e.g., 12V or 220V).

4. How long is the mechanical life of this button?
It is tested for up to 500,000 mechanical operations and 100,000 electrical cycles.

5. Can I customize the LED to show two colors?
Absolutely. FILN supports bi-color (e.g., Red/Green) and tri-color customizations for status indicators.

6. What material is the best for medical devices?
304 Stainless Steel is recommended for medical applications due to its high corrosion resistance and ease of sterilization.

7. Does it come with the wiring harness?
This listing is for the switch only, but FILN provides custom wire harness services upon request.

8. What is 'Momentary' function?
It means the switch only stays ON while you are physically pressing the button. Once you release it, it resets to the OFF position.

9. Can it handle 220V AC?
Yes, this switch is rated for up to 250V AC with a 5A current load.

10. How do I choose the right hole size?
Ensure your panel has a precisely 16mm hole. Any larger and the switch may not secure properly; any smaller and it won't fit.