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3G Electric
BATTERY DOCTOR In-Line Battery Disconnect Switch, Negative, 12V, 5000A - Battery Disconnect Switches
BATTERY DOCTORBattery Disconnect Switches

BATTERY DOCTOR In-Line Battery Disconnect Switch, Negative, 12V, 5000A

The BATTERY DOCTOR Battery Isolator Disconnect Switch (MPN 20257) is an in-line rotary disconnect switch with a negative polarity, rated for 12V maximum voltage and 5,000 A maximum surge current, featuring silver…

SKU 3G-OTH-497597

Brand
BATTERY DOCTOR
Item
In-Line Battery Disconnect Switch, Negative, 12V, 5000A
Part Number
20257
Category
Battery Disconnect Switches
Available to Order
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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
20257
Type
In-Line, Negative, 12V, 5,000 A
Polarity
Negative
Maximum Voltage
12V
Contact Material
Silver Plated Copper
Maximum Surge Current
5,000 A

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

Product Description

The BATTERY DOCTOR Battery Isolator Disconnect Switch (MPN 20257) is an in-line rotary disconnect switch with a negative polarity, rated for 12V maximum voltage and 5,000 A maximum surge current, featuring silver plated copper contacts. 3G Electric interprets this demand and delivers this genuine industrial switch across 14 departments — and far more — with specialist depth in electrical controls as an authorised distributor.

Frequently Asked Questions

What is the BATTERY DOCTOR Battery Isolator Disconnect Switch used for?

This in-line rotary disconnect switch isolates the battery from the electrical system, preventing parasitic drain and enabling safe maintenance. It is used in heavy-duty vehicles, marine, and industrial equipment where a high surge current rating of 5,000 A is required.

What are the specifications of the BATTERY DOCTOR 20257 switch?

The BATTERY DOCTOR 20257 is a negative polarity, in-line rotary disconnect switch rated for 12V maximum voltage and 5,000 A maximum surge current. It features silver plated copper contacts for reliable conductivity and is designed for high-current applications.

Where to buy the BATTERY DOCTOR 20257 worldwide?

3G Electric supplies the BATTERY DOCTOR 20257 battery isolator switch to customers worldwide. We handle full logistics, customs clearance, and delivery, ensuring you receive the genuine industrial switch you need, regardless of your location.

How to install a BATTERY DOCTOR battery disconnect switch?

Installation typically involves disconnecting the battery, mounting the switch in-line with the negative cable, and securing connections with appropriate tools. Always follow the manufacturer's instructions and use proper personal protective equipment. For specific guidance, consult a qualified technician.

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.
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BATTERY DOCTOR Products

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

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