RSBT4025FV11HP is a three-phase controlled soft starter designed for scroll compressors in multi-compressor systems. It features a patented auto-adaptive algorithm that automatically adapts to the compressor specifications for optimum inrush current reduction without requiring user settings. The unit operates at 340-440 VACrms, 50/60 Hz with a rated operational current of 25 Arms and a maximum current limit level of 90 Arms. Key features include integrated bypass relays, short ramp-up time of less than 600 ms, and comprehensive protection including over-temperature, overcurrent, and locked rotor protection. This soft starter is ideal for HVAC and refrigeration applications where reliable and efficient compressor starting is required.