Autoro AB20C DC Dual Power Automatic Transfer Switch DC5V-30V 20A Seamless Auto Switch ATS for Car Fridge/UPS Power/Adapter/Surveillance System/Off-Grid/Emergency Backup System(AB20C 30V/20A/Display)

AB20 Series Dual Power Automatic Transfer Switch (ATS) - Seamless Auto Power SwitchingThe Autoro AB20 Series Dual Power Automatic Transfer Switch (ATS) is an advanced family of automatic transfer switches engineered for uninterrupted power supply in critical applications. With zero-delay switching, these DC 5V-60V units instantly detect and select the higher-voltage input between two DC power sources—such as ups power, batteries —ensuring continuous operation for off-grid setups, emergency systems, and smart appliances. Their robust control module integrates reverse current protection and dual-source output to handle high-demand loads. Compact and built for durability, they simplify installation with screw terminals, making them perfect for DIY projects and professional use. Key Features & Core Technology Zero-Delay Automatic Switching: Instant power transition between dual inputs (e.g., grid/battery, ups backup power/adapter) with no interruption. This auto transfer prioritizes the higher-voltage source and enables simultaneous dual-battery discharge. Wide Voltage & High Power: Supports 5V–30V/60V DC input and up to 20A per channel. Compatible with 12V / 24V / 48V systems for inverter setups, emergency backup Built-in Safety Protection: Integrated diodes prevent backflow, ensuring electrical isolation. The overload-safe control module is built for emergency scenarios. Real-Time Digital Display (Select Models): The digital display version shows real-time voltage and status—perfect for smart power management. Easy & Professional Installation: Screw terminal interfaces and DIN rail mounting suit both DIY enthusiasts and professional grid controller cabinets. Choose Your Model: AB20 Series Comparison Select the perfect ATS for your voltage, current, and monitoring needs:AB20A: Input Voltage: 5V–30V DC | Max Output: 10A/channel x 2 CH | Display: NoAB20B: Input Voltage: 5V–30V DC | Max Output: 20A/channel x 2 CH | Display: NoAB20C: Input Voltage: 5V–30V DC | Max Output: 20A/channel x 2 CH | Display: Yes (Digital)AB20D: Input Voltage: 5V–60V DC | Max Output: 20A/channel x 2 CH | Display: Yes (Digital) Important Notice Before Operation:Before connecting any load to the Autoro AB20 DC automatic dual power transfer switch, please follow the steps below:1. Connect one input power source and measure the output voltage to verify it is normal. 2. Connect the second input power source and measure the output voltage again to confirm it is normal. 3. Only after confirming that the output voltage is correct, then you can connect your load to the output terminal.Universal Specifications & Compatibility,Common to All AB20 Models:Switching Delay: 0 seconds (True seamless auto transfer)Key Protection: Anti-backflow diodes, Overload-safe designPay attention to the Current and Voltage when selecting the correct ATS: Router / ONT / Network Switch: 12V/2A → Switch between main adapter and 12V LiFePO4 backup battery; keep home internet alive during outages. Starlink Mini / Satellite Terminal: 12V-48V/3A → Seamless failover keeps critical communication online; 10A capacity comfortably handles peak draw. RV DC Fridge: 12V/8A → Auto switch between vehicle battery and auxiliary LiFePO4; low voltage cutoff protects starter battery. Single CCTV Camera / NVR: 12V/1A → Works perfectly with dual 12V LiPo batteries; no reboot during power transition for continuous recording. Electric Door Lock / Access Control Panel: 12V/1.5A → Ensure entry/exit function during mains loss with backup LiFePO4 battery. 48V PoE Switch / Injector (Multi-Camera System): 48V/2-3A → 15A capacity handles multiple IP cameras and APs; backup with 48V LiFePO4 battery pack. Car Fridge + Laptop Charging + LED Lights (Overlanding): 12V/10-15A → Simultaneous high-power draw from dual LiFePO4 batteries; seamless switchover for off-grid work. PLC Controller / Industrial Automation Panel: 24V/2A → Maintain production line logic with dual 24V LiPo battery banks; industrial-grade reliability. RV DC Fridge + Lighting: 12V/9-12A → Manage multiple loads from dual battery banks; ensures comfortable off-grid living without interruption. Important Safety Note When used with motorized loads (e.g., drones, pumps), account for Back EMF (Electromotive Force). The total of the input voltage plus the back EMF must not exceed the maximum voltage rating of your specific ATS model (30V for AB20A/B/C, 60V for AB20D) to prevent damage. Why Choose Autoro? As a leading source manufacturer, Zhuhai Baoge Technology Co., Ltd. designs and builds professional-grade power solutions. The AB20 Series ATS combines proven reliability with essential automatic transfer technology for peace of mind. We warmly welcome collaboration with all distributors as we are the source manufacturer.

• ZERO-DELAY SEAMLESS POWER: Experience true uninterrupted power with 0-second switching time. The AB20 instantly detects and transfers to the stronger power source ( LiFePO4 and LiPO battery banks,also lead-acid, AGM, gel), ups backup power, off-grid power), eliminating downtime for critical systems like UPS, data centers, and security alarms.
• WIDE 5V-60V DC & 20A/10A HIGH-CURRENT: Designed for versatility, this ATS supports a broad DC input: AB20A/AB20B/AB20C: DC 5V to 30V; AB20D: DC 5-60V, making it perfect for both 12V and 24V, 48V systems. Handles high-demand loads up to 20A per chanel (AB20A: 10A/CH; AB20B/AB20C/AB20D: 20A/CH), ideal for inverters, RVs, marine applications, and large off-grid setups.
• ADVANCED SAFETY & ANTI-BACKFLOW: Built-in anti-backflow diodes ensure electrical isolation and prevent reverse current between batteries, protecting your power sources. Features an overload-safe control module for reliable performance in emergency and high-stress scenarios.
• DIY-FRIENDLY & INDUSTRIAL READY: Simplifies complex wiring with user-friendly screw terminals. Its compact, mini size is perfect for DIY projects, while the included both din rail mounting and screw mounting support makes it suitable for professional industrial automation and control cabinets.
• IMPORTANT NOTICE BEFORE OPERATION - Before connecting any load to the Autoro AB20 DC automatic dual power transfer switch, please follow the steps below: (1). Connect one input power source and measure the output voltage to verify it is normal; (2). Connect the second input power source and measure the output voltage again to confirm it is normal; (3) . Only after confirming that the output voltage is correct, then you can connect your load to the output terminal.
• SMART MONITORING OPTION: Select Autoro AB20C DC dual power auto transfer switch which features a digital led display to provide real-time output voltage, active input source, and power status via LED indicators—perfect for smart power management and ensuring your off-grid system is always running optimally.
• WIDE APPLICATION & DEPENDABLE BACKUP POWER: The go-to automatic transfer switch for security cameras, routers, PoE injectors, network switches, electric locks, access control panels, starlink Mini and off-grid communication gear. Ensure 24/7 security and network connectivity even during outages.