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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
Category
Battery Disconnect Switches
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Local availability & support

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

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

Technical Documents

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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 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 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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