We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
BATTERY DOCTOR 31200 Series Heavy Duty Circuit Breaker - Surface Mount Automotive Circuit Breakers
BATTERY DOCTORSurface Mount Automotive Circuit Breakers

BATTERY DOCTOR 31200 Series Heavy Duty Circuit Breaker

The BATTERY DOCTOR 31200 Series Heavy Duty Circuit Breaker (MPN 31209) is a surface-mount automotive circuit breaker with a stud terminal connection. It is rated for 42V DC and has an interrupt rating of 200 A at 12V DC.

SKU 3G-OTH-21383

Brand
BATTERY DOCTOR
Item
31200 Series Heavy Duty Circuit Breaker
Part Number
31209
Category
Surface Mount Automotive Circuit Breakers
Available to Order
Also known as:31209BATTERY DOCTOR
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

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

BATTERY DOCTOR
Manufacturer Part Number
31209
Series
31200
Voltage
42V DC
Interrupt Rating
200 A at 12V DC
Terminal Connection
Stud
Circuit Breaker Type
Heavy Duty Circuit Breaker

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 31200 Series Heavy Duty Circuit Breaker (MPN 31209) is a surface-mount automotive circuit breaker with a stud terminal connection. It is rated for 42V DC and has an interrupt rating of 200 A at 12V DC.

Frequently Asked Questions

What is the BATTERY DOCTOR 31200 Series circuit breaker used for?

The BATTERY DOCTOR 31200 Series heavy duty circuit breaker (MPN 31209) protects automotive electrical systems from overloads and short circuits. It is commonly used in trucks, buses, RVs, and marine applications where a 42V DC system requires a reliable, resettable overcurrent protection device with a stud terminal connection.

What are the specifications of the BATTERY DOCTOR 31209 circuit breaker?

The BATTERY DOCTOR 31209 is a surface-mount heavy duty circuit breaker from the 31200 Series. It is rated for 42V DC with an interrupt rating of 200 A at 12V DC. The terminal connection is a stud type, and the manufacturer part number is 31209. It is designed for high-current automotive and marine applications.

Where to buy the BATTERY DOCTOR 31209 circuit breaker worldwide?

3G Electric supplies the BATTERY DOCTOR 31209 circuit breaker to customers worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this heavy duty circuit breaker to any country.

How to install the BATTERY DOCTOR 31200 Series circuit breaker?

Install the BATTERY DOCTOR 31209 circuit breaker by mounting it on a flat surface using the stud terminal. Connect the battery positive cable to one stud and the load cable to the other, ensuring proper torque per manufacturer guidelines. Always disconnect the battery before installation and verify the system voltage (42V DC) and current rating (200 A at 12V DC) match your application.

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 surface mount automotive circuit breakers. 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

Compatible alternatives & equivalents

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