Auxiliary contactor for railways, 2 NO + 1 NC, DC 24 V, 0.7 ... 1.25* US, with integrated suppressor diode, size S00, spring-loaded connection suitable for PLC outputs. Auxiliary contactor SIRIUS 3RH2 for switching the control signals in the control circuit. The SIRIUS 3RH2 auxiliary contactors have standard-compliant connection designations and a reliable and time-saving connection technology. By multiplying the outputs, it is possible to switch several auxiliary circuits at the same time. All contacts are also available as SUVA versions with positive guidance for safety applications. The auxiliary contactors are climate-resistant, have a high level of contact reliability and are suitable for worldwide use thanks to the corresponding approvals (e.g. IEC and UL/CSA). They are available in AC or DC operation and are available with screw or spring-loaded technology. The basic version of the contactor relays is 4-pole and can be extended to 8 poles using snap-on auxiliary switches.The extensive accessories for the 3RT2 contactors for sizes S00 to S3 can also be used for the 3RH2 contactor relays.The 3RH2 contactor relays replace the tried and tested 3RH1 series.Simple, efficient, always up to date - the SIRIUS modular system.