Contactor relay, 31E, EN 50011, 3 NO + 1 NC flat connector terminal Diode or varistor attachable 24 V DC DC operation, 2 CO !!! Phased-out product !!! Successor is SIRIUS 3RT or 3TG10 Auxiliary contactor 3TH2 for switching the control signals in the control circuit. The SIRIUS 3TH2 contactor relays have standard-compliant terminal designations and a reliable connection technology. Thanks to the multiplication of outputs, simultaneous switching of several auxiliary circuits is possible. The contacts are designed with positively driven operation for safety applications as well as SUVA versions. The devices are climate-resistant, have a high contact reliability and are suitable for use worldwide thanks to the corresponding approvals (e.g. IEC and UL/CSA). The 3TH2 contactor relays are available with AC or DC operation in different versions with 4 or 8 poles and come with screw terminals, flat connectors or solder pin connections. Available accessories include surge suppressors, time-delay blocks and coupling links.