Supply Of Mpcb For Ventilation Fan Unit 1 & 2, Thermal Release Range Rated Current 2.5 - 4 A, Class 10, Breaking Capacity 50ka, Pole 3p, Rated Voltage 415v Ac, 1 No + 1 Nc Auxilary Contact Block Confirming To Rdso Specification No. Rdso/pe/spec/ac/0184-2015 Rev-0..