Phoenix Contact 1201829 A speed controller designed for motors with an AC voltage range of up to 480V and a maximum power rating of 0.75kW features a soft-start function, allowing for controlled acceleration and deceleration. Additionally, it offers configurable motor protection and analog input options, as well as support for single-line (STO) functions with a level of safety compliance equivalent to SIL3/PLe. The device also includes an integrated EMC filter and accepts three-phase load inputs.