Siemens 49SAS01 Pilot Device, Hand-Off-Auto Selector Switch, 14, 17, 18, 36, 37, 40, 83, 84, LEN, CLM, LED,LEF, LEB, CMN, CMF, CMB Class, 1, 12, 4/4X Enclosure Type, 0-8 (20-400A) Controller Size