16mm Waterproof Toggle Switch — Reliable 2-Position ON/OFF Control with LED Indicator
Whether you're wiring a custom control panel, upgrading an RV dashboard, or building a marine electrical system, finding a toggle switch that handles real-world current loads without corroding or leaking is harder than it should be. This 16mm waterproof toggle switch is built for exactly those situations — delivering a solid 20A 250VAC rating in a compact, panel-mount body that fits a standard 16mm (5/8") cutout.
Each switch features a 2-position ON/OFF latching actuator in your choice of silver or black body finish. LED indicator options include red, green, or no LED, with separate LED voltage variants for low-voltage DC systems (5–24V) and mains-powered installations (220V). Socket wire accessories are also available for adding or replacing the LED indicator on an existing switch. The sealed, waterproof construction resists moisture ingress, making it suitable for demanding environments.
Typical applications include automotive accessory switches for 12V/24V vehicle builds, marine and RV control panels where splash resistance is essential, and industrial or DIY enclosures requiring a panel-mount ON/OFF toggle switch with LED status indication. The 16mm form factor is a widely used standard, fitting most pre-drilled chassis and enclosure panels without modification.
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Compatibility Note: Fits standard 16mm (5/8") panel cutouts. Select 5-24V LED for automotive, marine, and low-voltage DC systems. Select 220V LED for mains-powered AC indicator circuits. Socket Wire variants are LED socket accessories, not complete switches.
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Verify before ordering: Confirm your panel thickness and cutout diameter. For DC applications, verify your load current does not exceed the switch's rated capacity. If unsure, contact us to confirm compatibility.
✅ Key Features of These 16mm Waterproof Toggle Switches
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💧Waterproof Sealed Body — Splash-resistant construction protects internal contacts from moisture, dust, and vibration, making this panel-mount toggle switch suitable for marine, automotive, and outdoor enclosure use.
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⚡20A 250VAC Rated — Handles demanding electrical loads across AC and DC circuits. Suitable for controlling lights, pumps, fans, and other accessories in 12V, 24V, and 220V systems.
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💡Built-in LED Indicator — Choose red or green LED to provide instant visual confirmation of switch state. LED voltage options (5-24V or 220V) let you match the indicator to your circuit without external resistors.
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🎨Silver or Black Body Finish — Two body color options let you match the switch to your panel aesthetic, whether you're building an industrial control box or a custom automotive dashboard.
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📐Standard 16mm Mounting Format — Drops into any 16mm (5/8") panel hole without adapters. The threaded bushing and locking nut secure the switch firmly to metal, plastic, or fiberglass panels.
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🔧2-Position Latching Action — Stays in the selected ON or OFF position without spring return, providing a stable, positive switching action for circuits that need to remain energized without continuous operator input.
📐 Technical Specifications — 16mm Panel-Mount Toggle Switch
| Switch Type |
2-Position Latching Toggle (ON/OFF) |
| Mounting Hole Diameter |
16mm (5/8") |
| Current Rating |
20A |
| Voltage Rating |
250VAC |
| LED Indicator Colors |
Red, Green, or No LED (see variant options) |
| LED Voltage Options |
5–24V DC / 220V AC (see variant options) |
| Body / Actuator Color |
Silver or Black (see variant options) |
| Waterproof Rating |
Splash-resistant sealed body (contact us to confirm IP rating) |
| Panel Thickness Compatibility |
See variant options / Contact us to confirm |
| Terminal Type |
Solder or quick-connect terminals (see variant options) |
| Operating Temperature |
Typically –20°C to +85°C (–4°F to +185°F) |
| Included Accessories |
Switch body, locking nut, LED socket (where applicable) |
❓ Frequently Asked Questions
What size hole do I need to mount this toggle switch?
This switch requires a 16mm (5/8") panel cutout. A step drill bit or chassis punch will give you a clean hole in metal or plastic enclosures. The threaded bushing and locking nut secure the switch from the front, so panel thickness generally needs to be within the bushing thread length — typically up to 5–8mm for most enclosures.
What is the current and voltage rating, and can I use it for DC circuits?
The switch is rated at 20A 250VAC. For DC applications, the same contacts are generally suitable for 12V and 24V automotive or marine loads at comparable current levels, though DC arcing characteristics differ from AC. For high-inductive DC loads, derate conservatively and verify with your application requirements.
Is this toggle switch waterproof enough for marine or outdoor use?
Yes. The switch body is sealed against moisture and dust ingress, making it suitable for marine dashboards, outdoor enclosures, and RV panels where splash exposure is expected. For full submersion applications, contact us to confirm the specific IP rating before ordering.
Which LED voltage should I select — 5-24V or 220V?
Choose 5-24V if your LED indicator will be powered from a low-voltage DC source such as a 12V car battery, 24V truck system, or any DC control circuit up to 24V. Choose 220V if the LED indicator connects directly to a 220VAC mains supply. Selecting the wrong voltage will result in the LED not illuminating or burning out prematurely.
What does the "Socket Wire" variant include — is it a complete switch?
No — the Socket Wire variant is a pre-wired LED socket accessory designed to connect to the switch body's LED terminal. It is not a standalone switch. Order this if you need to replace a damaged LED socket on an existing switch or add an LED indicator to a switch body that did not originally include one.
How do I wire this switch for a simple ON/OFF automotive accessory circuit?
For a basic 12V automotive circuit, connect your positive supply wire to one switch terminal and the load (light, fan, pump) to the other. Ground the load to chassis. If using the LED indicator, connect the LED socket wires to the designated LED terminals on the switch body and to your 12V supply and ground. Always use appropriately rated wire gauge for your load current.
What is the difference between the silver and black body options?
Both body colors share identical electrical specifications — 20A 250VAC rating, same LED options, same waterproof construction. The difference is purely cosmetic. Silver suits brushed-metal industrial panels or retro-style builds; black blends into dark automotive dashboards or modern enclosures.
🛒 Select your switch color, LED color, and LED voltage above, then add to cart — ships from our US warehouse.
