(2) Siemens 3TF SERIES Schütz

siemens 3tf SERIES contactor specifications datasheets 3TF2 contactors, 3-pole, 2.2 ... 4 kW Applies to 50/60 Hz coil: At 50 Hz, 1.1 x Us, side-by-side mounting and 100 % ON period the max. ambient temperature is +40 °C. 2) The 3TX4 490-1J additional load module is recommended for higher residual currents (see "Accessories and Spare Parts"). 3) The OFF-delay of the NO contact and the ON-delay of the NC contact are increased if the contactor coils are attenuated against voltage peaks (noise suppression diode 6 to 10 times; diode assemblies 2 to 6 times, varistor +2 to 5 ms).