Supply Of Mpcb For Ventilation Fan Unit 1&2, 3-4 A, Thermal Release Range : 2.5-4 A Class : 10, Breaking Capacity 50 Ka, Pole: 3voltage: 415v Ac With 1 No+1nc Auxiliary Contact Block, As Per Rdso Specifcation No. Rdso/pe/spec/ac/0184-2015 Rev-0 And Rdso L/n./el/7.1.108/mssbc, Dt 17.09.2021. Make:- Abb, Legrand, Schneider, L&t, Siemens, Eaton.