We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

BATTERY DOCTOR Top Post Battery Disconnect Switch, Negative, 12V, 500 A, Zinc - Battery Disconnect Switches
BATTERY DOCTORBattery Disconnect Switches

BATTERY DOCTOR Top Post Battery Disconnect Switch, Negative, 12V, 500 A, Zinc

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 provides a…

SKU 3G-OTH-497585

Brand
BATTERY DOCTOR
Item
Top Post Battery Disconnect Switch, Negative, 12V, 500 A, Zinc
Category
Battery Disconnect Switches
Available to Order
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 — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

BATTERY DOCTOR
Manufacturer Part Number
20308
Type
Top Post, Negative, 12V, 500 A, Zinc
Polarity
Negative
Maximum Voltage
12V
Contact Material
Zinc
Maximum Surge Current
500 A

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 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 provides a reliable method to isolate battery power for maintenance or safety, sourced and supported by 3G Electric across 14 industrial departments.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is a BATTERY DOCTOR battery disconnect switch used for?

A BATTERY DOCTOR battery disconnect switch isolates battery power for maintenance, safety, or storage. It prevents parasitic drain and reduces fire risk on vehicles, boats, and industrial equipment. 3G Electric supplies this switch across 14 industrial departments, including electrical and material handling.

What are the specifications of the BATTERY DOCTOR 20308 disconnect switch?

The BATTERY DOCTOR 20308 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. This switch is sourced by 3G Electric for applications requiring reliable battery isolation.

Where to buy a BATTERY DOCTOR battery disconnect switch worldwide?

3G Electric supplies the BATTERY DOCTOR battery disconnect switch worldwide, handling logistics, customs, and delivery. As a global industrial solutions provider, we source and deliver this switch to support maintenance and safety needs across industries.

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

To install a BATTERY DOCTOR top-post disconnect switch, disconnect the battery negative terminal first. Mount the switch on the negative post, tighten securely, and reconnect cables. Always follow manufacturer instructions and use proper tools. 3G Electric provides sourcing support for this switch.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from BATTERY DOCTOR

View all BATTERY DOCTOR parts
This top post knife blade battery disconnect switch is designed for 12V negative-ground systems. It features brass contacts and is suitable for disconnecting the battery in vehicles or equipment to prevent parasitic drain and enhance safety during storage or maintenance
BATTERY DOCTOR
This top post knife blade battery disconnect switch is designed for 12V negative-ground systems. It features brass contacts and is suitable for disconnecting the battery in vehicles or equipment to prevent parasitic drain and enhance safety during storage or maintenance
This knob-operated, in-line battery disconnect switch is designed for negative polarity 12V systems. It features copper contacts and is rated for 100 A continuous current with a 500 A surge capacity. Commonly used to prevent parasitic battery drain during storage or servicing in automotive, marine, and industrial equipment
BATTERY DOCTOR
This knob-operated, in-line battery disconnect switch is designed for negative polarity 12V systems. It features copper contacts and is rated for 100 A continuous current with a 500 A surge capacity. Commonly used to prevent parasitic battery drain during storage or servicing in automotive, marine, and industrial equipment
In-line rotary disconnect switch for negative-side battery disconnection. Rated for 12V and 300 A max current with copper contacts. Used to isolate battery power in vehicles or equipment to prevent parasitic drain, secure storage, or enable maintenance
BATTERY DOCTOR
In-line rotary disconnect switch for negative-side battery disconnection. Rated for 12V and 300 A max current with copper contacts. Used to isolate battery power in vehicles or equipment to prevent parasitic drain, secure storage, or enable maintenance
This in-line rotary disconnect switch isolates negative polarity 24V battery systems. Rated for 100 A continuous current with a 500 A surge capacity, it features copper contacts. Commonly used to prevent parasitic drain, enable maintenance, or serve as an emergency cutoff in vehicle and equipment electrical systems
BATTERY DOCTOR
This in-line rotary disconnect switch isolates negative polarity 24V battery systems. Rated for 100 A continuous current with a 500 A surge capacity, it features copper contacts. Commonly used to prevent parasitic drain, enable maintenance, or serve as an emergency cutoff in vehicle and equipment electrical systems
This in-line rotary disconnect switch isolates the battery from the electrical system to prevent parasitic drain and allow safe maintenance. Rated for 12V maximum voltage and 2500A maximum surge current, it features copper contacts. Suitable for use in vehicles, marine, and industrial equipment requiring a negative polarity disconnect
BATTERY DOCTOR
This in-line rotary disconnect switch isolates the battery from the electrical system to prevent parasitic drain and allow safe maintenance. Rated for 12V maximum voltage and 2500A maximum surge current, it features copper contacts. Suitable for use in vehicles, marine, and industrial equipment requiring a negative polarity disconnect
In-line rotary disconnect switch for negative battery terminals. Rated for 12V maximum voltage and 5000A surge current. Silver plated copper contacts ensure low resistance. Used to isolate battery from electrical system for maintenance or to prevent parasitic drain
BATTERY DOCTOR
In-line rotary disconnect switch for negative battery terminals. Rated for 12V maximum voltage and 5000A surge current. Silver plated copper contacts ensure low resistance. Used to isolate battery from electrical system for maintenance or to prevent parasitic drain
This in-line knife blade switch disconnects the battery from a 12V electrical system, preventing parasitic drain during storage or servicing. It is commonly used on vehicles, boats, and industrial equipment where a quick, manual battery isolation is needed. The switch features brass contacts and is rated for 12V maximum voltage
BATTERY DOCTOR
This in-line knife blade switch disconnects the battery from a 12V electrical system, preventing parasitic drain during storage or servicing. It is commonly used on vehicles, boats, and industrial equipment where a quick, manual battery isolation is needed. The switch features brass contacts and is rated for 12V maximum voltage
BATTERY DOCTOR Battery Disconnect Switch: In-Line Rotary, In-Line, Negative, 12V, 300 A Max Current (MPN 20387)
BATTERY DOCTOR
BATTERY DOCTOR Battery Disconnect Switch: In-Line Rotary, In-Line, Negative, 12V, 300 A Max Current (MPN 20387)