Features 1、Working Principle: Two power supplies automatically switch to continuous power supply. This battery switching module ensures reliable and smoothing power transfer. 2、Main Power and Backup Power: When the main power supply is powered on, the backup power supply is disconnected and the main power supply outputs. When the main power supply is powered off, the backup power supply is automatically on and output. 3、Voltage and Current: The voltage of the power switch module is 24V, and the rated output current is 30A, ensuring the security of the circuit power supply. 4、Automatic Cut Off: When the main power supply is supplied again, the backup power supply is automatically cut off, and the main power supply outputs. 5、MS Level Interval: When the main and backup power supplies are switched, the interval between them is only ms level. Specification Item Type: Power Switching Module Material: PCB Rated Output Current: 30A Package List 1 x Power Switch Module 1 x Enclosure 1 x Enclosure Accessories 4 x Screws