1SBL347001R4100 is a soft starter manufactured by ABB. It is an STO32 sized Soft Starter with a current rating of 42 A, a three-phase voltage rating of 0-480VAC, a frequency rating of 50/60 Hz and a heat dissipation capacity of 127 W. The soft starter features four digital inputs, one analog input, and two PTC inputs. It offers adjustable frequency overload protection, wear compensation, stall prevention and several other features. It is suitable for use in variable speed drives, pumps, fans, and other motor applications.