Button Switch Drawing
What is a Round Rocker Switch?
A round rocker switch is a circular electrical control device designed to open or close a circuit via a rocking motion. The circular rocker switch design is highly favored for its ease of installation, requiring only a simple drill bit for panel cutouts rather than complex rectangular milling. It provides a modern aesthetic and reliable tactile feedback, making it a staple in both consumer electronics and industrial control panels.
Product Overview
The FILN FL3-KCD1-121-11N is a market-standard KCD1 round rocker switch featuring a unique "round top, square bottom" structure for maximum stability. This illuminated round rocker switch is available in five vivid LED colors: Red, Green, Yellow, Blue, and White. It serves as a critical power control component for any electrified device, offering a clear ON-OFF function. Unlike non-lighted models, the led round rocker switch provides high visibility in dark environments, ensuring operators can easily identify the equipment status. Certified by ISO9001, CE, VDE, RoHS, SGS, UL, and IP65, it is built for long-term industrial use.
Quick Specifications
| Model Number | FL3-KCD1-121-11N |
|---|---|
| Mounting Size | φ19.6mm (0.77 inch) |
| Switch Function | ON-OFF |
| LED Colors | Red / Green / Yellow / Blue / White |
| Switch Appearance | Round Head / Square Base |
| Wiring Method | 3-Pin Terminals (Pins) |
Electrical Performance Parameters
| Main Technology Performance | Value |
|---|---|
| Function | ON-OFF |
| Rated Voltage | 5V-24V / 110V-220V (Customizable) |
| Rated Current | 30A 250VAC / 18(12)A 125VAC |
| Initial Contact Resistance | ≤50mΩ |
| Insulated Resistance | ≥100mΩ/500VDC |
| Dielectric Strength | 1500VAC/5mA 60s |
| Electrical Endurance | 10,000 cycles |
| Protection Degree | IP65 / IP66 |
Component Materials
| Accessories name | Material |
|---|---|
| Light Guiding Part | PC |
| Holder / Up Base | ABS |
| Bottom Base | PA66 |
| Pins / Spring Board | Brass H62 |
| Contact | AgCdO12 (Silver Alloy) |
| Waterproof cover | Silicone Rubber |
Industrial Reliability Standards
This round rocker switch is designed to withstand harsh environments. Operating Temperature: -40℃ to +125℃. Terminal Strength: Withstands an 80N static load for 60 seconds without damage. Solderability: More than 90% surface coverage at 235±5℃. Its robust construction ensures that electrical performance remains qualified even after 20,000 mechanical operations.
Rocker Switch vs. Push Button Switch
| Feature | Round Rocker Switch | Push Button Switch |
|---|---|---|
| Service Life | Exceptional Mechanical Endurance | Standard Endurance |
| Wiring | Quick-connect 3-Pin (Plug-and-Play) | Threaded or Solder terminals |
| Installation | Snap-in (Fast Assembly) | Nut-fixed (Slower Assembly) |
Applications
- Kitchen Appliances: Coffee machines, air fryers, water dispensers.
- Office & Commercial: Printers, projectors, POS systems.
- Industrial Control: Distribution boxes, power strips, test instruments.
- Medical Equipment: Centrifuges, diagnostic monitors.
Installation Guide
- Drill a φ19.6mm hole on the target panel.
- Align the circular rocker switch with the hole from the top side.
- Push the switch downward into the panel. The dual side-clips will snap and lock into place.
- Complete the wiring to the 3-pin terminals at the back of the switch.
Detailed 3 Pin Illuminated Rocker Switch Wiring Diagram and Connection Guide
A 3 pin illuminated rocker switch wiring diagram is a fundamental resource for technical personnel designing circuits that require visual status feedback. Unlike standard non-lighted models, an illuminated rocker switch features a built-in lamp that provides instant confirmation of the circuit's state. This guide provides the precise wiring schematic and technical logic required to integrate these components into your power systems.
How to Wire a 3 Pin Illuminated Rocker Switch: Connection Steps
To ensure the internal LED or neon lamp functions correctly alongside your device, follow this specific terminal configuration:
- 1. Power Input (Line Terminal): Connect the positive (+) wire from your power supply to the middle pin of the switch. This terminal acts as the common entry point for the current.
- 2. Load Connection (Device Terminal): Connect the bottom pin to the positive input of your device (e.g., a motor, lamp, or industrial component). When the switch is engaged, current is bridged from the middle pin to this terminal.
- 3. Ground Connection (Lamp Terminal): Connect the top pin (often gold-colored) directly to the negative (-) terminal of the power source. This dedicated connection completes the circuit for the internal light. Without this ground wire, the switch will toggle the device but will not illuminate.
Switch Operation and LED Logic
| Switch State | Device Status | Internal LED Status |
|---|---|---|
| Normal (Off) | OFF (Open Circuit) | OFF (Dark) |
| Press (On) | ON (Closed Circuit) | ON (Illuminated) |
Technical Considerations and Precautions
- Voltage Specificity: Illuminated switches are rated for specific voltages (e.g., 12V DC, 110V AC, or 220V AC). Connecting a low-voltage DC LED switch to high-voltage AC will result in immediate component failure.
- Terminal Identification: Always identify the ground pin (usually brass or gold) before applying power. Incorrectly swapping the positive and ground terminals can lead to a short circuit when the switch is flipped to the "On" position.
- Current Capacity: Verify that the switch’s rated amperage (e.g., 15A 250VAC) is higher than the maximum current draw of your device to prevent terminal overheating or melting.
- Reliable Termination: Utilize high-quality insulated spade connectors or proper soldering to maintain a low-resistance connection, ensuring long-term electrical stability.
Figure 1: Standard Connection Schematic for a 3-Pin Illuminated Rocker Switch
How Rocker Switches Work in Industrial Systems
In industrial environments, the round rocker switch acts as a primary control interface. Its simple "seesaw" mechanical design minimizes moving parts, which reduces the failure rate compared to complex push-button mechanisms. The 3-pin led rocker switch is particularly useful in low-light industrial cabinets, where the illuminated actuator guides the operator and prevents accidental power-down of critical systems.
FILN Factory Direct Supply
FILN is a premier manufacturer of round rocker switches, supporting high-volume industrial orders with No MOQ and Fast Global Shipping.
- ✅ Voltage Customization: 5V, 12V, 24V, 110V, 220V available.
- ✅ Custom Wiring: Custom wire lengths and connectors support.
- ✅ Direct Support: Engineering consulting for OEM/ODM projects.
Official Website: www.filn.com
Contact: inquiry@cnylin.com.cn
Frequently Asked Questions
Q1: [3-Pin/LED] What is the difference between Pin 2 and Pin 3?
Pin 2 is the load output to your device. Pin 3 is exclusively for the LED ground connection to complete the internal lamp circuit.
Pin 2 is the load output to your device. Pin 3 is exclusively for the LED ground connection to complete the internal lamp circuit.
Q2: [3-Pin/LED] Can I use this switch for DC 12V?
Yes, FILN offers custom voltages. We can provide internal resistors optimized for 5V, 12V, 24V DC, or 110V/220V AC.
Yes, FILN offers custom voltages. We can provide internal resistors optimized for 5V, 12V, 24V DC, or 110V/220V AC.
Q3: [3-Pin/LED] Is the switch waterproof for outdoor use?
This model reaches IP65/IP66 protection when used with our specialized silicone waterproof cover, protecting against splashes and dust.
This model reaches IP65/IP66 protection when used with our specialized silicone waterproof cover, protecting against splashes and dust.
Q4: [Installation] Do I need special tools for snap-in mounting?
No tools are needed to secure the switch. Once the φ19.6mm hole is drilled, the switch is simply pushed in by hand.
No tools are needed to secure the switch. Once the φ19.6mm hole is drilled, the switch is simply pushed in by hand.
Q5: [3-Pin/LED] Why are there five different colors?
Red, Green, Blue, Yellow, and White LEDs are used for color-coding different functions on a control panel for safer operation.
Red, Green, Blue, Yellow, and White LEDs are used for color-coding different functions on a control panel for safer operation.
Q6: [3-Pin/LED] Can I wire it so the light is always on?
Yes, by connecting the power source directly to both the Line pin and the LED pin, you can keep the lamp illuminated regardless of switch state.
Yes, by connecting the power source directly to both the Line pin and the LED pin, you can keep the lamp illuminated regardless of switch state.
Q7: [Customization] Does FILN offer pre-installed wire harnesses?
Absolutely. As a factory, we can provide switches with custom lead wires and various connectors pre-crimped to the terminals.
Absolutely. As a factory, we can provide switches with custom lead wires and various connectors pre-crimped to the terminals.
Q8: [Durability] What is the rated current for this round switch?
It is rated for heavy-duty industrial use up to 30A 250VAC, ensuring it can handle high-draw motors and heaters.
It is rated for heavy-duty industrial use up to 30A 250VAC, ensuring it can handle high-draw motors and heaters.
Q9: [Certification] Are these switches UL and CE listed?
Yes, they carry all major international safety certifications required for export to the US and European markets.
Yes, they carry all major international safety certifications required for export to the US and European markets.
Q10: [Installation] What panel thickness is supported?
The snap-in clips are designed to accommodate panels ranging from 0.7mm to 3.0mm in thickness.
The snap-in clips are designed to accommodate panels ranging from 0.7mm to 3.0mm in thickness.
Dear Valued Customers,
At FILN, we specialize in delivering precision-engineered indicator lights, push button switches, and rocker switches tailored to your unique requirements. While our products default to standard voltage ranges (12-24V and 110-220V), we understand that specialized applications demand flexibility.
Need a Custom Voltage Solution? Simply inform us of your desired voltage specifications (e.g., 5V, 48V, or non-standard ranges), and our engineering team will craft a solution within 10-15 business days.
Why Choose FILN for Custom Manufacturing?
✅ Expertise You Can Trust: Over 20 years of experience in industrial-grade electronic component production.
✅ End-to-End Customization: From voltage adjustments to bespoke designs (shape, color, IP rating), we adapt to your needs.
✅ Quality Guaranteed: All custom orders undergo rigorous testing to meet CE/RoHS/IP65 standards.
✅ Scalable Support: Whether prototyping or bulk orders, we ensure seamless delivery.
How It Works
Consultation: Share your technical requirements via email or our contact form.
Design & Approval: Receive 3D models or samples for confirmation.
Production & QC: Precision manufacturing with real-time updates.
Global Shipping: Trackable logistics to your doorstep.
Contact Us Today
Email: inquiry@cnylin.com.cn
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