Supply Of Mpcb Motor Protection Circuit Breaker, Current Rating: 3-4a, Thermal Release Range: 2.5-4 A, Class:10, Breaking Capacity: 50ka, Pole: 3p, Voltage: 415v Ac, 1no+1nc Auxiliary Contact Block. As Per Sr No. 74 Of Bill Of Material Bom Of Rdso Specification No. Rdso/pe/spec/ac/0184- 2015rev.0 & Conforming To Rdso Spec No Rdso/pe/spec/ac/0184 -2015 Rev. 0 Suitable For Use In Ventilation Fan Unit. Rdso Approved Make Only..