12mm Momentary Push Button Switch with LED Stainless Steel 4-Pin IP65 FILN

Button Switch DrawingProduct Overview

The FLM12-FJ-2-C is a premium 12mm momentary push button switch with led, precision-engineered by FILN for high-performance industrial environments. Featuring a sleek stainless steel flat head with an illuminated power symbol, this switch provides clear visual feedback and exceptional durability. With certifications including ISO9001, CE, VDE, RoHS, SGS, UL, and IP65, it is widely used in CNC machines, medical devices, and marine systems. This stainless steel push button switch 12mm is designed for space-constrained panels, offering a compact 4-pin design that ensures reliable electrical contact and easy installation.

Quick Specifications

Model Number	FLM12-FJ-2-C
Mounting Hole Size	12mm (0.47 inch)
Function	Momentary (Spring back)
LED Color	R/G/Y/B/W (Bi-color/Tri-color custom support)
Button Shape	Flat Head with Power Symbol
Termination Type	Pin Terminal (4-PIN)

Performance Parameters

Rated Voltage	36V DC / 250V AC
Rated Current	5A DC / 5A AC
Insulation Resistance	≥ 1000MΩ
Contact Resistance	< 50mΩ
LED Voltage	12-24V, 110-220V (Customizable)
Certifications	ISO9001, CE, UL, RoHS, VDE

Component Materials

Actuator	304 Stainless Steel
Body Shell	304 Stainless Steel / H59 Brass
Contact Material	Silver Alloy AgCdO12
Base	PA66+GF20% Flame Retardant Nylon

LED Specifications & Meaning

Choose the color that fits your system status:

• Red (R): Emergency stop or system error warning.
• Green (G): Normal operation or safe system status.
• Blue (B): Specific function activation or standby indication.
• Yellow (Y): Pre-warning or attention required.
• White (W): Neutral lighting or high-visibility power status.

Light Intensity	1000 mcd
Forward Current	20mA
Peak Wavelength	632.2 nm

Key Features

1. Superior Protection & Durability: Rated IP65 and IK08, this switch is waterproof, dustproof, and resistant to physical impact, making it ideal for outdoor and harsh industrial environments.

2. High Electrical Load Capacity: Supports up to 5A 250V AC/DC, allowing it to control higher power devices directly without an intermediate relay.

3. Premium Silver Contacts: The use of AgCdO12 silver contacts reduces contact resistance (< 50mΩ) and enhances electrical life.

4. Compact Short-body Design: With a mounting depth of only 26.5mm, it fits perfectly in shallow control boxes and handheld equipment.

Installation Guide

1. Drill a 12mm hole in the mounting panel.
2. Insert the switch through the hole from the front.
3. Tighten the hex metal nut from the back to secure the switch.
4. Proceed with wiring using the 4-pin terminals.

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

What is a 12mm Momentary Push Button Switch with LED?

It is a compact electrical control component where the circuit is closed only while the button is physically held down. Once released, it springs back to its original state. The integrated LED provides status indication, making it essential for automation and user interface panels.

Latching vs. Momentary: Comparison

Feature	Momentary (This Model)	Latching
Action	Springs back instantly	Stays in place (On/Off)
Common Use	Horns, Reset, Starters	Main Power, Light Switches

Comparison of Termination Types

Terminal Type	Pros	Cons
Pin Terminal	Fast, compact, fits sockets	Requires soldering/connectors
Screw Terminal	Easy field wiring	Bulky, not for small sizes
Pre-wired	Plug and play	Fixed wire length

Factory Direct Supply - FILN

FILN is a professional manufacturer specializing in industrial switches. We provide:

• No MOQ (Small orders welcome)
• Fast Lead Time & Global Shipping
• Voltage & Wire Customization
• CE / RoHS / UL Certified Quality

Get Free Sample

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

Frequently Asked Questions

1. Is the 12mm momentary push button switch waterproof?
Yes, it is IP65 rated, making it resistant to water splashes and dust.

2. Can I use this for 220V applications?
Yes, we offer custom versions that support up to 220V AC.

3. What is the benefit of stainless steel over plastic?
Stainless steel provides better impact resistance (IK08), corrosion resistance, and a premium aesthetic.

4. Does the power symbol LED stay on?
It depends on your wiring. It can be set to "Always ON" or "Sync with Switch."

5. Can I get a pre-wired version?
Yes, FILN provides custom wire harness assembly for this 12mm metal switch.

6. What does "Momentary" mean?
The switch only works while you press it. It returns to the OFF position when released.

7. What is the maximum current this switch can handle?
It is rated for 5A, which is higher than most competitors' 2A or 3A ratings.

8. Is the LED replaceable?
No, the LED is integrated into the switch for maximum reliability and waterproofing.

9. What colors are available for the LED?
Standard colors are Red, Green, Blue, Yellow, and White.

10. How do I install it in a panel?
Simply drill a 12mm hole, insert the switch, and tighten the included metal nut.