Push Button Waterproof Switch 16mm Metal Latching Momentary 4-Pin Pre-wired FILN

Button Switch DrawingProduct Overview

The 16mm push button waterproof switch (Model: FLM16-FW-1-E) is a high-performance industrial control solution manufactured by FILN. This 16mm metal push button switch features a robust stainless steel or black aluminum housing with an integrated ring illuminated LED. Designed for durability, it boasts certifications including ISO9001, CE, VDE, RoHS, SGS, UL, and IP65. With its 4-pin pre-wired design and 15cm tail glue sealing, it effectively prevents water vapor intrusion, making it the ideal waterproof momentary push button or latching push button with LED for industrial control panels, CNC machines, marine systems, and automation equipment.

Quick Specifications

Model Number	FLM16-FW-1-E
Mounting Hole Size	16mm (0.63 inch)
Function	Latching / Momentary (Self-locking / Self-reset)
LED Color	R/G/Y/B/W (Custom Bi-color/Tri-color available)
Button Head Shape	Flat Head
Wiring Method	4-Pin Pre-wired (15cm Cable)

Performance Parameters

Rated Voltage	36V DC / 250V AC
Rated Current	5A DC / 5A AC
Rated Power	180W (DC) / 1250W (AC)
Insulation Resistance	≥ 1000MΩ
Contact Resistance	< 50mΩ
LED Voltage	3V - 220V (Standard 12-24V / 110-220V)
Product Certification	ISO9001, CE, VDE, RoHS, SGS, UL, IP65

Component Materials

Component	Material Specification
Button Actuator	304 Stainless Steel / 6063 Aluminum Alloy
Shell/Sleeve	H59 Brass / 304 Stainless Steel / 6063 Aluminum Alloy
Pins/Terminals	H62 Copper Alloy / Pre-wired Leads
Base	PA66+GF20% Flame Retardant Nylon
Contacts	Silver Contact (AgCdO12)
Sealing	SIL Silicone Waterproof Ring & Tail Epoxy Sealing

General Characteristics

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

LED Specification

LED Colors	Red, Blue, Green, Yellow, White
Forward Current	20mA (Typical)
Light Intensity	1000 mcd
Luminous Flux	4.8 lm
Peak Wavelength	632.2 nm (Red)

LED Color Meanings:
- Red: Emergency stop, error, or danger status.
- Green: Normal operation, start, or safe status.
- Blue: Specific function, reset, or standby mode.
- Yellow: Warning or attention required.
- White: Power indicator or neutral illumination.

Key Features

1. Superior Protection (IP65 & IK08): Unlike standard IP40 switches, our 16mm push button offers IP65 waterproof and IK08 impact resistance, suitable for harsh outdoor and industrial environments.
2. Optimized Electrical Load: Supports up to 5A 250V AC/DC, allowing direct control of higher power devices without additional relays.
3. Premium Materials: Features high-grade 304 stainless steel or black anodized aluminum for extreme corrosion resistance and a professional aesthetic.
4. Silver Contact Design (AgCdO12): Ensures low contact resistance (< 50mΩ) and exceptional conductivity for a longer lifespan.
5. Pre-wired Convenience: The 4-pin pre-wired design with 15cm leads and tail glue sealing saves installation time and enhances moisture protection compared to standard pin terminals.

Terminal Type Comparison

Type	Advantages	Best For
Pin Terminal	Smallest footprint; flexible wiring	PCB mounting or tight spaces
Screw Terminal	No soldering required; secure connection	Field maintenance & heavy vibration
Pre-wired (4-Pin)	Best waterproof sealing; ready to install	Outdoor equipment & rapid assembly

Applications

This 16mm waterproof switch is widely used across various industries where reliability and safety are paramount:

• Industrial control panels
• CNC machinery & Robotics
• Automation equipment
• Marine & Boat dashboards
• Medical devices
• Electrical cabinets
• Security systems
• Handheld devices

Installation Guide

1. Drill Hole: Create a 16mm diameter hole in the mounting panel.
2. Insert Switch: Place the button switch through the hole from the front of the panel.
3. Secure Nut: Slide the metal hex nut from the back and tighten it onto the threaded body to fix the switch.
4. Wiring: Connect the pre-wired 4-pin leads to your circuit according to the wiring diagram.

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 Waterproof Switch?

A 16mm push button waterproof switch is an electrical control component with a 16mm mounting diameter, featuring specialized sealing (IP65+) to protect internal contacts from moisture and dust. In industrial equipment, these switches act as the primary interface for users to safely start or stop circuits, even in wet or outdoor conditions. The metal housing adds an "anti-vandal" property, protecting against mechanical impact (IK08).

2. Difference Between Latching and Momentary

Feature	Momentary (Self-Reset)	Latching (Self-Locking)
Action	Springs back when released	Stays in "pressed" position
Typical Use	Horn, Doorbell, Start pulse	Main Power, Light switch
Return Type	Auto-return	Press again to release

Factory Direct Supply

FILN is a professional push button switch factory with over 20 years of experience. We offer:

• ✅ No MOQ: Support for small orders and prototypes.
• ✅ Fast Delivery: Global shipping with quick lead times.
• ✅ Deep Customization: Voltage (3V-220V), Wire length, and Connectors.
• ✅ Certifications: Full CE, RoHS, and UL compliance.

Request Free Sample

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

Frequently Asked Questions

Q1: Is the 16mm push button switch completely waterproof?
A: Yes, it is IP65 rated, meaning it is protected against dust ingress and low-pressure water jets from any direction. The tail glue sealing further prevents moisture intrusion.

Q2: Can I customize the wire length for the FLM16-FW-1-E?
A: Absolutely. As a factory, FILN can customize the tail wire length and even add specific connectors to suit your project requirements.

Q3: What is the difference between stainless steel and black aluminum housings?
A: Stainless steel offers superior corrosion resistance for marine or food industries, while black aluminum provides a high-end, matte aesthetic for modern control panels.

Q4: Does the switch come with the necessary hardware for installation?
A: Yes, each switch includes a waterproof silicone O-ring and a metal hex nut for secure mounting.

Q5: Can I use this 16mm switch for 220V AC applications?
A: Yes, the switch contact is rated for up to 250V AC, and we provide LED options for 110V-220V AC.

Q6: What does "Momentary" mean for this switch?
A: It means the switch only stays active while your finger is pressing it. It returns to its original state once released.

Q7: Are samples available for testing?
A: Yes, we provide free samples for professional B2B customers. Please contact [email protected].

Q8: What is the benefit of the ring illuminated LED?
A: It provides clear status feedback and enhances the visual appeal of the equipment, especially in dark environments.

Q9: How do I wire the 4-pin pre-wired version?
A: Two wires are for the switch contact (circuit control) and two are for the LED power (+/-).

Q10: Does FILN have UL certification for these switches?
A: Yes, our button switches carry UL, CE, and RoHS certifications for global market access.