30 Amp Rocker Switch Aluminum Surface IP67 Waterproof 4 Pin ON-OFF Switch FILN

30A Rocker Switch Drawing

What Is a 30 Amp Rocker Switch?

A 30 amp rocker switch is a heavy-duty electrical switch designed to manually control high-current electrical circuits. The FILN FL3-KCD4-082 is an ON-OFF rocker switch with a 22 × 30 mm mounting size and an aluminum metal actuator. It is designed for applications where reliable switching, clear operation and high-current capacity are required.

With a rated capacity of up to 30A, this rocker switch can be used for a wide range of industrial, automotive, marine, RV, off-road and high-power equipment applications. LED illumination is available in Red, Green, Yellow, Blue and White for easy status indication.

Key Product Highlights

• 30A high-current switching capability
• 22 × 30 mm standard KCD4-style mounting size
• Premium aluminum metal actuator
• ON-OFF maintained switching function
• 12-24VDC and 250VAC applications
• Optional LED illumination in five colors
• IP67-level waterproof performance
• Suitable for industrial, marine, automotive and outdoor equipment

Need Faster Rocker Switch Wiring?

Make installation and replacement easier with the FILN Rocker Switch Wire Harness / Quick-Connect Base. The harness comes with pre-attached wires, helping you connect the rocker switch faster without preparing separate wires for every installation.

🛒 Buy Rocker Switch Wire Harness & Quick-Connect Base

Pre-wired for faster installation • Easy switch replacement • Custom wire length available

Product Overview

The FILN FL3-KCD4-082 30A rocker switch is a high-current ON-OFF control component manufactured for demanding electrical equipment. Its aluminum actuator provides a durable and modern appearance, while the internal high-current contact structure is designed for reliable switching performance.

The switch is available with different LED colors and can be customized for different electrical requirements. FILN also provides OEM and ODM support, including customized voltage, wire harnesses, connectors and cable lengths.

View All FILN Rocker Switches →

Quick Specifications

Attribute	Details
Model	FL3-KCD4-082
Switch Type	30A Heavy-Duty Rocker Switch
Function	ON-OFF, 2 Position
Mounting Size	22 × 30 mm (0.87 × 1.18 inch)
Terminal	4 Pin / Solder or Quick Connect
Rated Current	Up to 30A
Rated Voltage	250VAC / 12-24VDC
LED Colors	Red / Green / Yellow / Blue / White
Actuator	Aluminum Metal Surface
Waterproof Performance	IP67 Performance

Performance Parameters

Rated Value	30A 250VAC / 30A 12-24VDC
Rated Power	Up to 5000W*
Contact Resistance	≤50mΩ Initial
Insulation Resistance	≥100mΩ / 500VDC
Dielectric Strength	1500VAC / 5mA / 60s
Electrical Life	10,000 Cycles
Operating Temperature	-25°C to +85°C
Waterproof Rating	IP67 Performance

*Actual allowable power depends on operating voltage, load type, wiring, installation conditions and the applicable electrical rating.

Component Materials

Component	Material
Actuator	Aluminum Metal Surface
Bottom Base	PA66 Nylon, High-Temperature Resistant
Terminals / Pins	H62 Brass with Silver Plating
Contact Material	AgCdO12 Silver Alloy
Waterproof Seal	Internal Silicone Rubber Seal
Internal Spring	72# Carbon Spring Steel

Rocker Switch Function Comparison

Function Code	Description
ON-OFF	Maintained single-throw switching
ON-ON	Maintained double-throw switching
(ON)-OFF	Momentary ON, spring return to OFF
ON-(OFF)	Momentary OFF, spring return to ON

Technical Advantages of the 30A High-Current Rocker Switch

The FL3-KCD4-082 is designed for applications requiring higher current capacity and dependable long-term operation. Key structural features include:

Component	Design Feature	Purpose
Housing	Split black housing structure	Improves structural stability and installation
Sealing	Optimized frame and internal seal	Helps improve resistance to dust and water
LED	Premium LED illumination	Provides clear switch status indication
Contacts	Silver alloy contacts and brass terminals	Designed for high-current switching
Contact Holder	Larger contact support structure	Supports stable electrical contact
Insulation	High-temperature PA66 nylon	Improves mechanical and thermal durability

Applications of 30 Amp Rocker Switches

The 30A rocker switch is suitable for equipment requiring high-current manual switching. Typical applications include:

• Kitchen Equipment: Deep fryers, ovens, coffee machines and other high-power appliances.
• Marine & Transportation: Yacht control panels, boats, RV systems and navigation equipment.
• Industrial Machinery: Control panels, packaging equipment, conveyors and power distribution systems.
• Off-Road Vehicles: LED light bars, auxiliary electrical systems and winch controls.
• Automotive Equipment: Auxiliary lighting, electrical accessories and control panels.
• Home Appliances: High-load equipment and electrical control systems.

Installation Guide

1. Prepare the Panel: Create a rectangular mounting cutout of approximately 22 × 30 mm according to the product drawing.
2. Position the Switch: Insert the rocker switch from the front side of the panel and ensure the orientation is correct.
3. Snap-In Mounting: Press the switch into the panel until the retaining clips secure it firmly.
4. Connect the Wiring: Connect the appropriate wires to the rear terminals using compatible female spade connectors or soldering.
5. Test the Switch: Verify the ON-OFF operation and confirm that the LED operates correctly with the selected voltage.

Make Installation Faster with a Pre-Wired Rocker Switch Harness

If you want to simplify wiring, FILN offers a dedicated wire harness and quick-connect base for rocker switches. The harness is supplied with wires already attached, making the rocker switch easier to install, remove and replace.

✓ Pre-Wired
Ready for faster connection ✓ Quick Connection
Simplifies installation ✓ Easy Replacement
Convenient for maintenance ✓ Custom Wire Length
Cable length can be customized

For OEM projects and production orders, FILN can customize the wire length, harness configuration and connector solution according to your installation requirements.

🛒 Shop Rocker Switch Wire Harness

4-Pin Rocker Switch Wiring Diagram & Connection Guide

A 4-pin rocker switch wiring diagram helps installers understand the relationship between the switch circuit and the internal LED circuit. Depending on the specific switch configuration, the LED can be wired for dependent illumination or independent illumination.

Option 1: LED On When the Device Is Operating

In this configuration, the internal LED illuminates when the rocker switch is in the ON position and the connected device is operating.

• Input: Connect the power source to the appropriate input terminals.
• Output: Connect the switched output terminals to the load.
• LED Logic: The LED operates together with the switched circuit.

Figure 1: Wiring configuration for LED illumination when the device is operating.

Option 2: LED Remains On When Power Is Available

This configuration can be used when the switch needs to remain visible in a dark environment. The LED is powered independently from the switched load according to the applicable terminal configuration.

• Power: Connect the LED circuit to the appropriate power terminals.
• Load: Connect the equipment to the switched output terminals.
• LED Logic: The LED can remain illuminated while the switch is connected to the power source.

Figure 2: Wiring configuration for constant LED illumination.

Operation Logic Comparison

Configuration	Switch State	Device	LED
Dependent	OFF	OFF	OFF
	ON	ON	ON
Independent	OFF	OFF	ON
	ON	ON	ON

Wiring & Safety Notes

• Verify the actual terminal layout and wiring diagram for the specific switch before connecting power.
• Confirm the internal LED voltage matches your electrical system before applying power.
• Do not exceed the manufacturer's rated current and voltage.
• Use properly rated and insulated connectors for high-current applications.
• Disconnect power before installation or maintenance.

Industry Knowledge

How Does a Rocker Switch Work?

A rocker switch uses a pivoting actuator mechanism. Pressing one side changes the internal contact position, opening or closing the electrical circuit. In a high-current rocker switch, the contact system and terminal structure are designed to carry the specified electrical load.

Why Choose an Aluminum Rocker Switch?

An aluminum actuator provides a durable metal surface with a clean, premium appearance. It is suitable for equipment where the switch needs to withstand frequent operation while maintaining a professional appearance.

FILN Factory Direct Supply

FILN is an experienced manufacturer of industrial switches and electronic control components, supporting OEM, ODM and customized production for international customers.

• No MOQ for standard samples and small-batch testing
• Global Shipping support
• CE / RoHS / UL and other certification options
• Voltage Customization
• Wire Harness Customization
• Connector Customization
• Custom Wire Length
• OEM / ODM Production

Request a Product Sample

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

Frequently Asked Questions

1. Can this 30 amp rocker switch be used with 12V DC?
Yes. The FL3-KCD4-082 is designed for 12-24VDC applications and also has a 250VAC rating. Always confirm the actual switch and LED voltage configuration before installation.

2. Is this rocker switch suitable for marine applications?
The switch features IP67-level waterproof performance and can be used in suitable marine control panels when installed correctly and operated within its rated specifications.

3. What is the mounting size?
The mounting size is approximately 22 × 30 mm, making it suitable for compatible KCD4-style panel cutouts.

4. How many pins does the switch have?
This model uses a 4-pin terminal configuration. Always refer to the product wiring diagram for the exact terminal arrangement.

5. Can I purchase a quick-connect base for this rocker switch?
Yes. FILN offers a dedicated rocker switch wire harness / quick-connect base designed to simplify wiring and make switch installation and replacement faster. View the rocker switch wire harness →

6. Does the wire harness come with wires?
Yes. The harness is supplied with attached wires, helping reduce wiring preparation and making the rocker switch easier to connect.

7. Can the wire length be customized?
Yes. FILN can customize the wire length for OEM and bulk production according to your installation requirements.

8. What LED colors are available?
Red, Green, Yellow, Blue and White LED options are available. Other configurations may be customized depending on the project.

9. What applications are suitable for a 30A rocker switch?
Typical applications include marine equipment, RVs, off-road vehicles, industrial control panels, kitchen equipment, automotive accessories and other high-current electrical systems.

10. Does FILN support OEM and ODM customization?
Yes. FILN supports customized voltage, LED configuration, wire harnesses, connectors, cable lengths and other production requirements for qualified projects.

Complete Your Rocker Switch Installation

Add a pre-wired quick-connect harness to simplify wiring, speed up installation and make future rocker switch replacement easier. Custom wire lengths are available for production orders.

🛒 Buy the Rocker Switch Wire Harness