Siemens Coupling contactor relay, 2 NO + 2 NC, 24 V DC Part number 3RH2122-1HB40

Coupling Contactor Relay

The SIRIUS 3RH2 coupling contactor relay is designed for switching control signals in control circuits, with options for direct connection to electronic controllers.

Technical details:

• 2 NO + 2 NC
• 24 V DC
• 0.7-1.25*Us
• Screw terminal
• Frame size S00
• Suitable for PLC outputs
• Not expandable with auxiliary switch
• Standard-compliant terminal designations
• High contact reliability
• Suitable for use worldwide with approvals (e.g. IEC and UL/CSA)
• Available with AC or DC operation
• Available with screw or spring-loaded terminals
• Replaces the well-proven 3RH1 series

Customer benefits:

• Reliable and time-saving connection technology
• Multiplication of outputs allows for simultaneous switching of several auxiliary circuits
• Contacts available with positively driven operation for safety applications
• Climate-resistant design
• Extensive range of accessories compatible with 3RT2 contactors
• Simple, efficient, and always up to date with SIRIUS modular system