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Feature:

1. 300μs Fast Switching: This DC automatic transfer switch monitors main power voltage continuously and switches to backup in under 300μs when voltage drops below set threshold. It automatically returns to main power after a delay once power is returned, preventing frequent oscillation and ensuring stable work for sensitive loads like PLCs and industrial robots
2. Intelligent Circuit Protections: Built in safety mechanisms include under voltage switching, over current shutdown, short circuit alarm with quick disconnection, high temperature thermal cutoff, and reverse polarity plus surging protection. These features prevent damage from wiring errors and startup current spikes, supporting dependable unattended operation
3. Digital Display with Adjustable Settings: The 3 digit LED screen shows real time voltage for both main and backup power sources. 3 buttons allow you to customize low voltage switching threshold, high voltage recovery threshold, and recovery delay time. This dual power transfer switch adapts to various DC power combinations including solar panel and battery
4. Compact and Safe Design: The mini body measures 82 x 54 x 32 mm with a flame retardant ABS shell. It supports standard DIN rail installation or wall mounting, and features screw type terminals for easy wiring. Rated at 8A continuous current, this ATS fits industrial pump stations, energy storage backups, and teaching experiments with simple setup
5. Dual DC Power Compatibility: This switch works with multiple main and backup power pairings like solar panel with storage battery, AC adapter with backup battery, or dual industrial DC supplies. It can power PLC, robotic arm, valve equipment, and test circuit, enabling automatic unattended power supply and preventing equipment shutdowns or restart failures

Specification:

Item Type: Dual Power Auto Transfer Switch
Material: Flame Retardant ABS
Rated Current: 8A (Continuous)
Peak Current: 15A (Short Time)
Switching Time: <300μs
Output Capacitor: About 660μF
Default Threshold (12V System): LL = 9V; HH=11V; Delay 1 second
Fuse: 15A
Working Temperature: -40℃-85℃
Humidity Range: 10%-85%RH (no condensation)
Product Size: Approx. 82 x 54 x 32mm / 3.2 x 2.1 x 1.3in

Package List:

1 x Dual Power Automatic Transfer Switch

Note:

1. Our listing price includes the value of goods,packaging cost,and export taxes,not including international duties.
2. duties,taxes,and charges are not included in the item price or shipping fee.
3. The duties are buyers' responsibility.Please check with your country's customs office determine what these additional costs will be prior to your purchase.
4. All disputes arising from the duties will be submitted to ebay for solution.

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On 04-Sep-2026 at 10:23:53 BST, seller added the following information: