3TBI AC ContactorApplications:The contactor is suitable for using in the circuits up to the rated voltage 660V AC 50Hz or 60Hz, rated current 630A, for making and breaking, and for frequent starting and controlling the motor. After combined with the mechanical interlocking device, it becomes 3TD Series convertible contactor for controlling, starting, breaking and reversing of the motor. The products comply with IEC60947-4.Specifications:

Type	Rated thermal current (A)	Rated operating current at AC 3 380V (A)	Rated operating current at 660V (A)	The power of controlled motor (KW)		Type of auxiliary contact
				380V	660V
3TB40	20	9	3.33	4	5.5	1NO
3TB41	20	12	4.33	5.5	7.5	1NC
3TB42	30	18	7.77	7.5	11	1NO+1NC
3TB43	30	22	8.5	11	11	2NO+2NC
3TB44	45	32	12	15	23	2NC+2NO

Key Specifications/Special Features:3TB Series AC contactor Applications: 3TF series AC contactor are suitable in electrical system with AC 50/60Hz, rated operational voltage up to 660V In AC-3 usage, rated operational voltage up to 380V, rated operational current up to630Ato make or break remote motors or system They form electromagnetic starters with suitable thermal overload or phase-failure Made according to IEC 60947, BS 5424 & VDE 0660 Contactor is straight motion mechanism having double breaking contacts Auxiliary contacts are arranged NO.2NC at most, it is employed flexible locking connection between contact support and core, three are no arc-isolated panel in Ie≤22Acontactor In the In≥32Acontactors, three are molded arc-chute with arc-isolated panel, because all contacts are made of high con-fusibility and against corrosion silver alloy All series products can be mounted by screw, Ie≤32Acontactor also by installation rail