Big Push Button Switch 40mm Metal 5-Pin 3-220V Ring LED Indicator Momentary/Latching FILN

PRODUCT OVERVIEW

The big push button switch (Model: FLM40-FJ-1-E) is a heavy-duty 40mm industrial control component manufactured by FILN. This oversized switch is constructed from premium 304 stainless steel, providing a high-strength silver metal housing that resists corrosion and impact. It features a brilliant ring LED indicator, significantly improving operational safety by providing a bright, clear signal in dark or low-light environments. With ISO9001, CE, VDE, RoHS, SGS, UL, and IP65 certifications, it is the ideal choice for industrial control panels, automation systems, and heavy machinery. Supporting both momentary and latching functions with a reliable 5-pin terminal, this switch ensures precise circuit control for any power-dependent equipment.

QUICK SPECIFICATIONS

ELECTRICAL PERFORMANCE

COMPONENT MATERIALS

GENERAL CHARACTERISTICS

KEY FEATURES & ADVANTAGES

• Large 40mm Diameter: Designed for easy activation in heavy-duty industrial environments, even when wearing gloves.
• Silver Contacts (AgCdO12): Ensures low contact resistance and excellent anti-arcing performance for a longer lifespan.
• Ring LED Feedback: The illuminated ring ensures the switch is visible in total darkness, improving safety and aesthetics.
• Flexible Mounting: Screw thread mounting ensures a secure fit on control panels, resisting high vibration.
• Customizable Voltages: Standard 12V-24V supported, with options for 110V and 220V standard power supplies.

LED INDICATOR COLOR GUIDE

Using the correct LED color is vital for machine safety and user interaction:

• Red: Typically indicates "Stop," "Emergency," or a fault state.
• Green: Used for "Start," "System Ready," or normal operation.
• Blue: Indicates specific manual functions or system status updates.
• Yellow/Orange: Used for warnings, standby, or caution states.
• White: Provides high-intensity neutral lighting for clear visibility in dark areas.

INDUSTRIAL APPLICATIONS

The big push button switch is essential for large-scale equipment control:

• Industrial Control Panels
• CNC Processing Centers
• Automation Production Lines
• Electrical Cabinets
• Marine Control Systems
• Medical Equipment Interface

INSTALLATION GUIDE

1. Drill a 40mm hole on the equipment panel.
2. Insert the big push button from the front side of the panel.
3. Place the metal nut from the back and tighten it to secure the switch to the panel.
4. Connect the 5 pins according to the desired circuit logic (C, NO, NC, LED+/LED-).

TERMINAL TYPE COMPARISON

5 Pin Push Button Switch Wiring Diagram

A 5-PIN switch offers maximum flexibility, featuring C (Common), NO (Normally Open), NC (Normally Closed), and two dedicated LED pins (+ / -). This allows for four distinct control modes.

1. Normal OFF, Sync LED (NO Connection)

Logic: Both the device and the LED are OFF by default. Pressing the button turns ON the device and the LED simultaneously.

• Application: Standard start switches where the light indicates the system is running.
• State: Static (LED Out, Device Off) → Pressed (LED On, Device On).

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2. Normal ON, Sync LED (NC Connection)

Logic: Both the device and the LED are ON by default. Pressing the button turns OFF both the device and the LED.

• Application: Stop buttons or emergency cut-off switches.
• State: Static (LED On, Device On) → Pressed (LED Out, Device Stop).

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3. Normal OFF, Constant LED (NO Connection)

Logic: The LED stays ON constantly as a backlight. The device only turns ON when the button is pressed.

• Application: Power switches in dark environments or access control buttons.
• State: Static (LED On, Device Off) → Pressed (LED On, Device On).

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4. Normal ON, Constant LED (NC Connection)

Logic: The LED stays ON constantly. The device is ON by default and turns OFF when the button is pressed.

• Application: Monitoring systems or security alarms that require constant power indication.
• State: Static (LED On, Device On) → Pressed (LED On, Device Stop).

Mode	LED Behavior	Device (Idle)
NO Sync	Lights up when pressed	OFF
NC Sync	Turns off when pressed	ON
Constant	Always ON (Backlight)	User Choice

INDUSTRY KNOWLEDGE

What is a Big Push Button Switch?

In the world of industrial HMI (Human Machine Interface), a big push button switch refers to switches with a mounting diameter of 30mm to 40mm. These are used in scenarios where operators need high tactile feedback or quick access, such as machine start/stop panels. The larger surface area reduces operation errors and increases panel visibility.

Momentary vs. Latching Difference

FACTORY DIRECT SUPPLY - FILN

• No MOQ: Direct factory sales with no minimum order requirements.
• Fast Delivery: Global shipping from our China manufacturing center.
• Full Certification: All products meet CE, UL, and RoHS standards.

Request Free Samples →

Official Website: www.filn.com

Contact Us: inquiry@cnylin.com.cn

FAQ - 40MM BIG PUSH BUTTON SWITCH

Q1: Is the 40mm 5-pin big push button switch waterproof?
Yes, it features an IP65 rating, making it suitable for wet and dusty industrial environments.

Q2: Can I get the led ring switch in 220V?
Yes, FILN supports custom LED voltages ranging from 3V to 220V.

Q3: What is the benefit of a 5-pin terminal design with LED?
The 5-pin design allows separate control of the LED and the circuit logic (NO/NC), providing more automation options.

Q4: Do you offer the momentary push button version?
Yes, the FLM40-FJ-1-E is available in both momentary (self-reset) and latching (self-locking) functions.

Q5: Can the LED stay on even when the button is not pressed?
Yes, by wiring it in "Constant LED" mode using the NO terminal logic[cite: 9].

Q6: Is stainless steel the best material for these big switches?
Yes, 304 stainless steel offers the best corrosion resistance and professional silver appearance for high-end panels.

Q7: What mounting hole size is needed?
This model requires a standard 40mm (1.57 inch) circular panel cutout.

Q8: What are silver contacts used for?
Silver contacts ensure a low contact resistance (<50mΩ) and reliable conductivity over 100,000 electrical cycles.

Q9: Does FILN provide custom wiring harnesses?
Yes, we can provide custom wire lengths and connector types to fit your specific application.

Q10: Are these switches UL certified for global use?
Yes, our switches carry CE, UL, and RoHS certifications, making them compliant with international safety standards.