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BATTERY DOCTOR Automotive Switch: Toggle Switch, SPST, 3 Connections, On/Off, Blue - Automotive Toggle Switches
BATTERY DOCTORAutomotive Toggle Switches

BATTERY DOCTOR Automotive Switch: Toggle Switch, SPST, 3 Connections, On/Off, Blue

The BATTERY DOCTOR Automotive Switch is a panel-mount SPST toggle switch (MPN 20503) with an On/Off function, blue actuator and stem, and 1/4 in male terminals. It features illumination in the 'On' position and has 3…

SKU 3G-OTH-516143

Brand
BATTERY DOCTOR
Item
Automotive Switch: Toggle Switch, SPST, 3 Connections, On/Off, Blue
Category
Automotive Toggle Switches
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Technical Specifications

BATTERY DOCTOR
Manufacturer Part Number
20503
Type
SPST, On/Off, Blue, Blue
Features
Illuminates In "On" Position
Terminals
1/4 in Male
Stem Color
Blue
Connections
3
Switch Type
Toggle Switch
Contact Form
SPST
Actuator Color
Blue
Mounting Style
Panel Mount
Switch Function
On/Off
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BATTERY DOCTOR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The BATTERY DOCTOR Automotive Switch is a panel-mount SPST toggle switch (MPN 20503) with an On/Off function, blue actuator and stem, and 1/4 in male terminals. It features illumination in the 'On' position and has 3 connections.

Frequently Asked Questions

What is the BATTERY DOCTOR Automotive Switch 20503 used for?

This SPST toggle switch is used for simple On/Off control of 12V or 24V automotive circuits, such as auxiliary lights, fans, or pumps. Its blue illumination confirms the circuit is live, making it ideal for dashboards or control panels in vehicles, boats, and off-road equipment.

What are the specifications of the BATTERY DOCTOR toggle switch 20503?

The BATTERY DOCTOR 20503 is a panel-mount SPST toggle switch with On/Off function, blue actuator and stem, and 3 connections. It features 1/4 in male terminals and illuminates in the 'On' position. The switch is designed for automotive DC circuits and is supplied by 3G Electric.

Where to buy the BATTERY DOCTOR 20503 toggle switch worldwide?

3G Electric supplies the BATTERY DOCTOR 20503 toggle switch to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time; we source genuine industrial parts across 14 departments, including electrical and automotive switches.

How to install a BATTERY DOCTOR panel-mount toggle switch?

Drill a standard panel hole, insert the switch through the front, and secure with the included nut. Connect the 1/4 in male terminals: common to power, normally open to load, and ground for the illumination circuit. Ensure the circuit is off before wiring. 3G Electric can advise on compatible connectors.

Used in

Common applications for BATTERY DOCTOR
Fleet maintenance — BATTERY DOCTOR 31200 Series circuit breakers for overcurrent protection in truck electrical systems
Automotive wiring harness repair — BATTERY DOCTOR GPT primary wires (20 AWG, 22 AWG) for replacing damaged low-voltage cables
Industrial control panels — BATTERY DOCTOR primary wires for internal wiring of 60 V control circuits
Marine battery systems — BATTERY DOCTOR circuit breakers for protecting DC circuits on boats
Off-road equipment — BATTERY DOCTOR 31200 Series breakers for resettable protection in ATVs and utility vehicles
Battery charger connections — BATTERY DOCTOR primary wires for extending charger leads in workshop environments

BATTERY DOCTOR Products

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

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BATTERY DOCTOR Automotive Switch: Toggle Switch, SPST, 2 Connections, Off/On, Silver, Blue (MPN 20512). Key specifications — Contact Form: SPST; Switch Function: Off/On; Actuator Color: Silver; Stem Color: Blue; Terminals: 3/15 in Male; Mounting Style: Panel Mount; Brand: BATTERY DOCTOR; Switch Type: Toggle Switch.
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BATTERY DOCTOR Automotive Switch: Toggle Switch, SPST, 3 Connections, On/Off/On, Black, Black, Blade (MPN 20507). Key specifications — Contact Form: SPST; Switch Function: On/Off/On; Actuator Color: Black; Stem Color: Black; Terminals: Blade; Mounting Style: Panel Mount; Brand: BATTERY DOCTOR; Switch Type: Toggle Switch.
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BATTERY DOCTOR Automotive Switch: Toggle Switch, SPST, 3 Connections, On/Off/On, Black, Black, Blade (MPN 20507). Key specifications — Contact Form: SPST; Switch Function: On/Off/On; Actuator Color: Black; Stem Color: Black; Terminals: Blade; Mounting Style: Panel Mount; Brand: BATTERY DOCTOR; Switch Type: Toggle Switch.
BATTERY DOCTOR Automotive Switch: Toggle Switch, SPST, 3 Connections, On/Off, Green, Green (MPN 20501). Key specifications — Contact Form: SPST; Switch Function: On/Off; Actuator Color: Green; Stem Color: Green; Terminals: 1/4 in Male; Features: Illuminates In "On" Position; Mounting Style: Panel Mount; Brand: BATTERY DOCTOR.
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BATTERY DOCTOR Automotive Switch: Toggle Switch, SPST, 3 Connections, On/Off, Green, Green (MPN 20501). Key specifications — Contact Form: SPST; Switch Function: On/Off; Actuator Color: Green; Stem Color: Green; Terminals: 1/4 in Male; Features: Illuminates In "On" Position; Mounting Style: Panel Mount; Brand: BATTERY DOCTOR.
BATTERY DOCTOR Automotive Switch: Toggle Switch, SPST, 3 Connections, On/Off, Silver, Black (MPN 20522). Key specifications — Contact Form: SPST; Switch Function: On/Off; Actuator Color: Silver; Stem Color: Black; Terminals: 1/4 in Male; Features: Green LED; Mounting Style: Panel Mount; Brand: BATTERY DOCTOR.
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BATTERY DOCTOR Automotive Switch: Toggle Switch, SPST, 3 Connections, On/Off, Silver, Black (MPN 20522). Key specifications — Contact Form: SPST; Switch Function: On/Off; Actuator Color: Silver; Stem Color: Black; Terminals: 1/4 in Male; Features: Green LED; Mounting Style: Panel Mount; Brand: BATTERY DOCTOR.
BATTERY DOCTOR Automotive Switch: Toggle Switch, SPST, 2 Connections, Off/On, Red, Black (MPN 20510). Key specifications — Contact Form: SPST; Switch Function: Off/On; Actuator Color: Red; Stem Color: Black; Terminals: 1/4 in Male; Features: Red Indicator Light; Mounting Style: Panel Mount; Brand: BATTERY DOCTOR.
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BATTERY DOCTOR Automotive Switch: Toggle Switch, SPST, 2 Connections, Off/On, Red, Black (MPN 20510). Key specifications — Contact Form: SPST; Switch Function: Off/On; Actuator Color: Red; Stem Color: Black; Terminals: 1/4 in Male; Features: Red Indicator Light; Mounting Style: Panel Mount; Brand: BATTERY DOCTOR.
BATTERY DOCTOR Automotive Switch: Toggle Switch, SPST, 3 Connections, On/Off, Silver, Black (MPN 20520). Key specifications — Contact Form: SPST; Switch Function: On/Off; Actuator Color: Silver; Stem Color: Black; Terminals: 1/4 in Male; Features: Amber LED; Mounting Style: Panel Mount; Brand: BATTERY DOCTOR.
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BATTERY DOCTOR Automotive Switch: Toggle Switch, SPST, 3 Connections, On/Off, Amber, Amber (MPN 20502). Key specifications — Contact Form: SPST; Switch Function: On/Off; Actuator Color: Amber; Stem Color: Amber; Terminals: 1/4 in Male; Features: Illuminates In "On" Position; Mounting Style: Panel Mount; Brand: BATTERY DOCTOR.
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BATTERY DOCTOR Automotive Switch: Toggle Switch, SPST, 3 Connections, On/Off, Amber, Amber (MPN 20502). Key specifications — Contact Form: SPST; Switch Function: On/Off; Actuator Color: Amber; Stem Color: Amber; Terminals: 1/4 in Male; Features: Illuminates In "On" Position; Mounting Style: Panel Mount; Brand: BATTERY DOCTOR.
BATTERY DOCTOR Automotive Switch: Toggle Switch, SPST, 2 Connections, Off/On, Silver, Black, Screw (MPN 20511). Key specifications — Contact Form: SPST; Switch Function: Off/On; Actuator Color: Silver; Stem Color: Black; Terminals: Screw; Mounting Style: Panel Mount; Brand: BATTERY DOCTOR; Switch Type: Toggle Switch.
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