:: AUTOMATIC TRANSFER SWITCHES :: 12P Harness GENERAL INFORMATION Description：12P Harness Usage : Connect BTS and TSP module . Part NO. Length Rated Volt Housing HU-081 810 mm 600VAC AMP 770022-1 HU-100 1000 mm 600VAC AMP 770022-1 HU-250-12 2500 mm 600VAC AMP 770022-1 HU-150 1500mm 600VAC AMP 770022-1