A - Changeover switch, 250VAC-5A, Microswitch with silver contacts, Housing cast aluminium, seawater-resistant, Protection class IP 65 , SIL1 Tmax. 0 to +300°C at ambient 0 to +70°C 01 - Square flange 92x92mm, PN25 Stainless steel 1.4408 093 - Float 64x142 for density >0.75 Stainless steel 1.4571 Switching differential adjustable