Rocker Switch Drawing
What is an On and Off Rocker Switch?
An on and off rocker switch is a standard electromechanical switch used to bridge or interrupt an electrical circuit. The KCD3 series is a rectangular, snap-in component designed for panel mounting. As a 2-pin SPST (Single Pole Single Throw) device, it provides a simple binary control—connecting the power in the "ON" position and completely isolating the load in the "OFF" position. It is the most common control element in power systems for safety and operational efficiency.
Product Overview
The FL3-KCD3-0111-11X is a high-performance on and off rocker switch characterized by its universal KCD3 rectangular form factor. This non-illuminated, 2-position switch features a durable black plastic surface, making it a versatile choice for any industrial or consumer aesthetic. With a 2-pin plug-in terminal design, it ensures rapid and secure wiring. FILN guarantees reliability through premium certifications including ISO9001, CE, VDE, RoHS, SGS, UL, and IP65. Its snap-in installation allows for immediate deployment in 28x11mm cutouts, providing a long service life for heavy-duty applications.
Quick Specifications
| Model Number | FL3-KCD3-0111-11X |
| Mounting Hole Size | 28x11mm (1.1 x 0.43 inch) |
| Circuit Function | ON-OFF |
| Illumination | Non-Illuminated (Black Actuator) |
| Terminal Type | 2-Pin / Plug-in Terminal |
Performance Parameters
| Function | ON-OFF |
| Rated Voltage/Current | 30A 250VAC / 18(12)A 125VAC |
| Contact Resistance | ≤ 50mΩ |
| Insulation Resistance | ≥ 100mΩ / 500VDC |
| Dielectric Strength | 1500VAC / 5mA 60s |
| Endurance | 10,000 Cycles |
| Operating Temp | -40°C to +125°C (40T125) |
| Protection Degree | IP65 / IP66 |
Component Materials
| Part Name | Material |
|---|---|
| Up Base / Actuator | ABS Plastic |
| Bottom Base | PA66 Nylon |
| Holder | ABS |
| Terminals / Pins | Brass H62 |
| Internal Contacts | AgCdO12 (Silver Alloy) |
| Spring | 72# Spring Steel |
| Washers / Gaskets | Rubber |
General Characteristics
| Part Name | Rocker switch |
| Operating/Storage Temp | -40°C ～ +125°C |
| Relative Humidity | 45% ～ 85% |
| Test Conditions | 5-35°C / 86-106Kpa |
Mechanical & Electrical Properties
| Project | Requirement |
|---|---|
| Appearance | No rust, crack or plating defects. |
| Insulation Resistance | ≥ 100MΩ (500VDC / 60S) |
| Dielectric Strength | 3000VAC between terminal and housing. |
| Terminal Strength | 80N static load for 60s; No damage. |
| Mechanical Life | 20,000 cycles (No load). |
Illuminated vs. Non-Illuminated Rocker Switches
Choosing the right on and off rocker switch depends on your operational environment. FILN offers both premium illuminated versions and classic black-out models to meet diverse engineering needs.
The Non-Illuminated Advantage: The matte black KCD3 model is a versatile solution that integrates seamlessly into any dashboard or panel design. Without the need for a lamp ground, it simplifies the wiring process and eliminates parasitic power draw, making it perfect for battery-operated systems and industrial panels where simplicity is prioritized.
The Illuminated Advantage: For mission-critical equipment, a lighted rocker switch provides instant visual feedback. In dark or low-visibility industrial environments, the internal LED or Neon lamp ensures operators can quickly identify the "ON" state, enhancing safety and operational speed. Whether you prefer the "hidden" aesthetics of the black version or the functional brilliance of the illuminated model, FILN provides the same heavy-duty internal components across both lines.
Applications
The on and off rocker switch is ubiquitous in power control systems. Every electrical device requires a reliable mechanical disconnect to manage circuit flow.
- Appliances: Coffee makers, air fryers, vacuum cleaners, and humidifiers.
- Industrial: Distribution boxes, control cabinets, and testing machinery.
- Medical: Diagnostic instruments, medical beds, and nebulizers.
- Office Equipment: Printers, shredders, and PDU power strips.
- Automotive & Marine: RV auxiliary lighting, car sunroof controls, and boat dashboard switches.
Installation Guide
- Cutout: Prepare a 28x11mm rectangular hole on the mounting panel.
- Positioning: Insert the switch from the front of the panel.
- Snap-In: Utilize the dual-side snap-in clips to fix the switch body securely into the cutout.
- Wiring: Connect your positive power line and load wires to the 2-pin terminals at the back.
Complete 2 Pin Rocker Switch Wiring Diagram and Installation Guide
Understanding a 2 pin rocker switch wiring diagram is essential for safely implementing manual power control in your electrical circuits. A 2-pin rocker switch functions as a standard Single Pole Single Throw (SPST) mechanism, designed to either bridge or interrupt the flow of electricity to a connected load.
How to Wire a 2 Pin Rocker Switch: Step-by-Step Instructions
Wiring a non-illuminated 2-pin switch is straightforward. Follow this schematic logic to ensure a stable and professional installation:
- 1. Power Input (Line): Connect the positive (+) wire from your power source (e.g., a battery or DC power supply) to the first pin of the switch. This serves as the entry point for the current.
- 2. Load Output: Connect a wire from the second pin of the switch to the positive input terminal of your device (such as an LED indicator, motor, or industrial component).
- 3. Completing the Circuit: Connect the negative (-) terminal of the device directly back to the negative terminal of the power source. Note that since this is a 2-pin non-lighted switch, the switch housing itself does not require a ground connection.
Switch Operation Logic & Technical Specifications
| Switch State | Device Status (Load) | Internal LED Status |
|---|---|---|
| Normal (Off Position) | OFF (Open Circuit) | None (Non-Illuminated) |
| Pressed (On Position) | ON (Closed Circuit) | None (Non-Illuminated) |
Critical Installation Precautions
- Electrical Ratings: Always verify the voltage and amperage ratings stamped on the switch body (e.g., 6A 250VAC or 20A 12VDC). Exceeding these limits can cause terminal overheating.
- Terminal Security: Ensure you use the correct size of insulated spade connectors (typically 4.8mm or 6.3mm) to prevent short circuits and ensure mechanical stability in high-vibration environments.
- Polarity Practice: While mechanical 2-pin switches are not polarity-sensitive, it is best practice to install the switch on the positive (hot) side of the circuit rather than the neutral/negative side for safety.
Figure 1: Standard Wiring Configuration for a 2-Pin Rocker Switch
How Rocker Switches Work in Industrial Systems
The how rocker switch works mechanism involves a spring-loaded fulcrum. When pressure is applied to one side of the actuator, an internal movable contact pivots between two positions. In our KCD3 series, we utilize Silver Alloy (AgCdO12) contacts. This material choice is critical for industrial reliability, as it resists contact welding and minimizes arcing during high-current switching, ensuring the device remains operational over 10,000 electrical cycles.
FILN Factory Direct Supply
FILN is a specialized manufacturer of electrical control components, offering worldwide shipping and factory-direct support for B2B procurement.
- MOQ: No minimum order required.
- Lead Time: Fast global logistics.
- Customization: Wire length and connectors.
- Certification: UL / CE / RoHS certified.
Official Website: www.filn.com
Contact: inquiry@cnylin.com.cn
Frequently Asked Questions
1. How many terminals does this non-lighted 2-pin rocker switch have?
The FL3-KCD3-0111-11X features 2 spade terminals at the rear for easy plug-in wiring of a Single Pole Single Throw (SPST) circuit.
2. Is this black plastic rocker switch waterproof?
When used with our specialized protective cover, it achieves IP65/IP66 ratings, protecting internal contacts from dust and moisture.
3. Can I use a 2-pin switch for a 12V DC system?
Yes, our rocker switches are designed for heavy duty use and can handle everything from 5V to 250VAC. Since it has no internal lamp, voltage matching for an LED is not required.
4. What is the maximum current capacity of the KCD3 2-pin switch?
It is rated for 30A at 250VAC, making it suitable for high-power industrial machinery and heating appliances.
5. Why choose a non-illuminated black switch over a lighted one?
Non-illuminated switches offer a clean, professional look and do not require a neutral/ground connection, making wiring simpler and more robust.
6. Does this model support snap-in installation?
Yes, it features flexible plastic side-clips that allow the switch to be snapped into a panel without the need for additional screws.
7. Are FILN rocker switches UL and CE certified?
Absolutely. We hold ISO9001, UL, CE, VDE, and RoHS certifications to ensure our products meet global safety standards for export.
8. What material are the switch contacts made of?
We use Silver Alloy (AgCdO12) contacts for superior conductivity and heat resistance, which prevents the terminals from melting under load.
9. Can I customize the wire harness for my switch order?
Yes, the FILN factory can pre-solder wires of any length and add custom connectors to streamline your assembly process.
10. How long is the service life of these electrical rocker switches?
They are engineered for longevity, with a mechanical life of over 20,000 cycles and an electrical endurance rating of 10,000 cycles.
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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