Contactor, size 2, 2-pole, for railway applications DC-3 and 5, 7.5A at 750V DC 24 V auxiliary contacts 21 (2NO+1 NC) with varistor and series resistor Operating range 0.7...1.25xUS Operating range 0.7...1.25xUS 3TC contactor for switching direct current, 2-pole.The 3TC direct current contactors impress with their high performance combined with a compact design and high contact reliability. They are also characterized by a particularly long switching life. The devices are approved worldwide (e.g. IEC and UL/CSA).They are available in AC and DC operation, in various voltages and with various auxiliary contacts.Accessories include arc chambers, magnetic coils and surge suppressors.