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BATTERY DOCTOR Automotive Circuit Breaker: 31200, 42V DC, 200 A at 12V DC - Surface Mount Automotive Circuit Breakers
BATTERY DOCTORSurface Mount Automotive Circuit Breakers

BATTERY DOCTOR Automotive Circuit Breaker: 31200, 42V DC, 200 A at 12V DC

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
Automotive Circuit Breaker: 31200, 42V DC, 200 A at 12V DC
Category
Surface Mount Automotive Circuit Breakers
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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

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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 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 surface mount automotive circuit breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Automotive Circuit Breaker: CB, 42V DC, 60 A at 42V DC, Stud (MPN CB60)
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Automotive Circuit Breaker: CB, 42V DC, 60 A at 42V DC, Stud (MPN CB60)
Automotive Circuit Breaker: CB, 42V DC, 200 A at 42V DC, Stud (MPN CB200PB)
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Automotive Circuit Breaker: CB, 42V DC, 200 A at 42V DC, Stud (MPN CB200PB)
Automotive Circuit Breaker: CB, 42V DC, 90 A at 42V DC, Stud (MPN CB90PB)
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Automotive Circuit Breaker: CB, 42V DC, 90 A at 42V DC, Stud (MPN CB90PB)
Automotive Circuit Breaker: CB, 42V DC, 150 A at 42V DC, Stud (MPN CB150)
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Automotive Circuit Breaker: CB, 42V DC, 150 A at 42V DC, Stud (MPN CB150)
Automotive Circuit Breaker: CB, 42V DC, 50 A at 42V DC, Stud (MPN CB50PB)
BUYERS PRODUCTS
Automotive Circuit Breaker: CB, 42V DC, 50 A at 42V DC, Stud (MPN CB50PB)
Automotive Circuit Breaker: CB, 42V DC, 150 A at 42V DC, Stud (MPN CB150PB)
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Automotive Circuit Breaker: CB, 42V DC, 150 A at 42V DC, Stud (MPN CB150PB)

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