Coupling auxiliary relay, 3 NO + 1 NC, DC 24 V, 0.85 ... 1.85 US, with integrated suppression diode, size S00, spring-loaded connection. The SIRIUS 3RH2 coupling auxiliary relay is designed for switching control signals in the control circuit with direct connection options to electronic controls. The SIRIUS 3RH2 coupling auxiliary relays feature standardized connection designations and a reliable, time-saving connection technology. Output multiplication allows for the simultaneous switching of multiple auxiliary circuits. The contacts are available with forced guidance for safety applications, also as SUVA variants. The coupling auxiliary relays are climate-resistant, offer high contact reliability, and are suitable for worldwide use due to corresponding approvals (e.g., IEC and UL/CSA). They are available in AC or DC operation and come with screw or spring-loaded technology. The extensive accessories of the 3RT2 relays for sizes S00 to S3 can also be used for the 3RH2 coupling auxiliary relays. The 3RH2 coupling auxiliary relays replace the proven 3RH1 series. Simple, efficient, always up to date - the SIRIUS modular system.