3RH1122-1BB40
The Siemens SIRIUS 3RH1122 intermediate relay provides four sets of auxiliary contacts (2NO + 2NC), with a coil rated voltage of 24V DC, an S00 frame screw terminal design, an insulation voltage of 690V, a mechanical life of 30 million cycles, and an IP20 protection rating. It is suitable for signal conversion and interlocking circuits in industrial control panels.
Product Positioning
The Siemens SIRIUS 3RH1122-1BB40 intermediate relay offers a 2NO+2NC contact configuration, a 24V DC coil, and screw terminals. It is a commonly used auxiliary component for signal conversion and interlocking in control circuits.
Core Product Advantages and Features
2NO+2NC four sets of contacts
It also provides two sets of normally open and two sets of normally closed contacts, which can be used to form complex interlocking circuits or signal conversion logic.
24V DC rated coil
The coil has a rated voltage of 24V DC and an operating range of 0.8 to 1.1 times the rated voltage, ensuring stable and reliable operation.
S00 frame screw terminal
It adopts a standard S00 frame and screw terminals, which can connect wires from 0.5 to 4 square millimeters, and is easy to install and maintain.
High mechanical life
With a mechanical lifespan of 30 million operating cycles, it can maintain stable switching performance even after long-term use.
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