Purpose: It automatically transfers power from the main source (e.g., utility/mains) to a backup source (e.g., generator or solar) when an outage is detected, and reverts once the main power is restored.Operating Modes:Auto: The switch automatically manages the transfer based on voltage availability.Manual: A red selector switch allows users to manually choose the power source using the handle.Specifications:Commonly available in 2-pole (2P) for single-phase or 4-pole (4P) for three-phase systems.Rated current typically ranges from 10A to 63A, with a rated operating voltage of 220V (2P) or 380V (4P).Transfer time is generally \(\le 1.2\) seconds.Compliance: This type of device often complies with the IEC/EN60947-4-1 standard.