KS3TF AC Contactor

Application

3TF series AC Contactors 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 to 630A to make or break remote motors or system. They can form electromagnetic starters with suitable thermal overload relays 3UA series to protect system and motors against overload or phase-failure. They are made according to IEC60947-4. The contactor is a straight motion mechanism having double-breaking contacts. The auxiliary contacts are arranged 2NO, 2NC at most. It is employed the flexible locking connection between the contact support and core. There are no arc-isolated panel in the le≤22A contactors. In the In≥32A contactors, there are moulded arc-chute with arc-isolated panel. Because all contacts are made of high non-fusibility and against corrosion silver alloy. All series products can be mounted by screws, le≤32A contactor also by installation rail.

Specifications

Type Rated thermal current (A) Rated operation current (A) Controllable power of motor (KW) Type of auxiliary contact AC-3 AC-4 380V 660V 380V 660V 380V 660V NO NC 1NO+1NC 2NO+2NC K3TF30 20 9 3.33 1 5.5 1.4 2.4 K3TF31 20 12 4.33 5.5 7.5 1.9 3.3 K3TF32 30 18 7.77 7.8 11 3.5 6 K3TF33 30 22 8.5 11 11 4 6.6 K3TF34 45 32 15.6 15 23 7.5 13 K3TF35 45 38 18.5 18.5 23 9 15.5 K3TF40 20 12 4.3 5.5 7.5 1.9 3.3 2NC+2NO 4NC+4NO K3TF41 20 9 3.3 4 5.5 1.4 2.4 K3TF42 30 16 7.7 7.5 11 3.5 6 K3TF43 30 22 8.5 11 11 4 6.6 K3TF44 45 32 15.6 15 23 7.5 13 K3TF45 45 38 18.5 18.5 23 9 15.5 K3TF46 70 45 24 22 39 12 20.8 K3TF47 70 63 28 30 55 14 24.3 K3TF48 90 75 34 37 67 17 29.3 K3TF49 90 85 42 45 67 21 36 K3TF50 150 110 54 55 100 27 46.9 K3TF51 150 140 68 75 100 35 60 K3TF52 180 170 75 90 156 38 66 K3TF53 220 205 96 110 156 50 86 K3TF54 300 250 110 132 235 58 100 K3TF55 300 300 125 160 235 66 114 K3TF56 400 400 150 200 375 81 140 K3TF57 550 475 150 250 375 81 140 K3TF68 630 630 600 335 560 160 278