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BATTERY DOCTOR 20309 Top Post Battery Disconnect Switch - Battery Disconnect Switches
BATTERY DOCTORBattery Disconnect Switches

BATTERY DOCTOR 20309 Top Post Battery Disconnect Switch

The BATTERY DOCTOR Battery Disconnect Switch is a top-post rotary disconnect switch with a negative polarity, rated for 12V and a maximum surge current of 500 A, featuring zinc contacts. This switch is designed for…

SKU 3G-OTH-497584

Brand
BATTERY DOCTOR
Item
20309 Top Post Battery Disconnect Switch
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
20309
Type
Top Post, Negative, 12V, 500 A, Zinc
Polarity
Negative
Maximum Voltage
12V
Contact Material
Zinc
Maximum Surge Current
500 A

Technical Documents

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

Product Description

The BATTERY DOCTOR Battery Disconnect Switch is a top-post rotary disconnect switch with a negative polarity, rated for 12V and a maximum surge current of 500 A, featuring zinc contacts. This switch is designed for reliable battery isolation in industrial applications.

Frequently Asked Questions

What is a BATTERY DOCTOR Battery Disconnect Switch used for?

A BATTERY DOCTOR Battery Disconnect Switch isolates the battery from the electrical system, preventing parasitic drain and enabling safe maintenance. It is used in industrial vehicles, equipment, and machinery where reliable battery isolation is required.

What are the specifications of the BATTERY DOCTOR 20309 disconnect switch?

The BATTERY DOCTOR 20309 is a top-post rotary disconnect switch with negative polarity, rated for 12V and a maximum surge current of 500 A. It features zinc contacts and is designed for durable battery isolation in industrial applications.

Where to buy a BATTERY DOCTOR disconnect switch worldwide?

3G Electric supplies the BATTERY DOCTOR disconnect switch worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this and other industrial battery disconnect switches.

How to install a BATTERY DOCTOR top-post disconnect switch?

Disconnect the battery negative terminal first. Mount the switch securely to the battery top post using the provided hardware. Connect the cable to the switch output, then test operation. Always follow manufacturer instructions and safety guidelines for your specific 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 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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