On and Off Rocker Switch Waterproof KCD3 2-Pin Manual Control Black Rocker Switch FILN

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.

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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

1. Cutout: Prepare a 28x11mm rectangular hole on the mounting panel.
2. Positioning: Insert the switch from the front of the panel.
3. Snap-In: Utilize the dual-side snap-in clips to fix the switch body securely into the cutout.
4. 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.

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

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.