Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
BATTERY DOCTOR SPST Off/On Rocker Switch with Red LED - Automotive Rocker Switches
BATTERY DOCTORAutomotive Rocker Switches

BATTERY DOCTOR SPST Off/On Rocker Switch with Red LED

The BATTERY DOCTOR Automotive Switch is a SPST rocker switch with an Off/On function, black actuator and stem, and a red LED indicator. It features 3 slip male terminals and panel-mount design (MPN 20550).

SKU 3G-OTH-504791

Brand
BATTERY DOCTOR
Item
SPST Off/On Rocker Switch with Red LED
Part Number
20550
Category
Automotive Rocker Switches
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

BATTERY DOCTOR
Manufacturer Part Number
20550
Type
SPST, Off/On, Black, Black, Red LED
Features
Red LED
Terminals
Slip Male
Stem Color
Black
Connections
3
Switch Type
Rocker Switch
Contact Form
SPST
Actuator Color
Black
Mounting Style
Panel Mount
Switch Function
Off/On

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

BATTERY DOCTOR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The BATTERY DOCTOR Automotive Switch is a SPST rocker switch with an Off/On function, black actuator and stem, and a red LED indicator. It features 3 slip male terminals and panel-mount design (MPN 20550).

Frequently Asked Questions

What is the BATTERY DOCTOR 20550 rocker switch used for?

The BATTERY DOCTOR 20550 is a SPST rocker switch with Off/On function and a red LED indicator, designed for panel-mount applications in automotive, marine, and off-road equipment where a simple on/off control with visual status is needed.

What are the specifications of the BATTERY DOCTOR 20550 switch?

The BATTERY DOCTOR 20550 is a SPST rocker switch with Off/On function, black actuator and stem, 3 slip male terminals, and a red LED. It features panel-mount style and is rated for 12 VDC or 24 VDC automotive circuits.

Where to buy the BATTERY DOCTOR 20550 rocker switch worldwide?

3G Electric supplies the BATTERY DOCTOR 20550 rocker switch to customers worldwide. We handle full logistics, customs clearance, and delivery to your site, ensuring you receive genuine BATTERY DOCTOR parts for your automotive or marine panel project.

How to install the BATTERY DOCTOR 20550 panel-mount rocker switch?

To install the BATTERY DOCTOR 20550, cut a standard panel opening, insert the switch from the front, and secure it with the retaining nut. Connect the 3 slip male terminals to your circuit: common, load, and LED ground. Ensure power is off before wiring.

Used in

Common applications for BATTERY DOCTOR
Fleet maintenance — Battery Doctor corrosion inhibitor MPN 16204 applied to battery terminals on trucks and buses to prevent acid buildup.
Heavy equipment electrical systems — Battery Doctor toggle switch MPN 20561 used for on/off control of auxiliary lighting on construction machinery.
Vehicle panel mounting — Battery Doctor switch panel MPN 20591 used to mount indicator lights in truck cabs.
Marine battery systems — Battery Doctor corrosion inhibitor MPN 16201 applied to terminal connections to reduce corrosion in humid environments.
Industrial battery rooms — Battery Doctor switch panel MPN 20590 used to organize control switches for stationary battery banks.
Bus electrical maintenance — Battery Doctor toggle switch with guard MPN 20565 installed to prevent accidental activation of battery disconnect circuits.
Not sure this is the right part? Photo-identify it

BATTERY DOCTOR Products

3G Electric supplies BATTERY DOCTOR automotive rocker switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from BATTERY DOCTOR

View all BATTERY DOCTOR parts

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first