3RH2122-2BF40

The Siemens SIRIUS 3RH2122-2BF40 auxiliary contactor relay features a 2NO+2NC contact configuration, a 110V DC coil, spring-loaded terminal wiring, and a standard S00 size, suitable for general industrial control circuits.

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The 3RH2122-2BF40 is a SIRIUS series auxiliary contactor relay, featuring a 110V DC coil and a 2NO+2NC contact design, suitable for general industrial control panel interlocking circuits.

Core Product Advantages and Features
2NO+2NC contact configuration
It provides two sets of normally open and two sets of normally closed contacts to meet the needs of multi-circuit interlocking and signal feedback.
110V DC coil
The coil has a rated voltage of 110V DC and is suitable for medium and high voltage DC control power supply systems.
Spring-type terminals
The wiring is completed without the need for screw fastening by using spring-loaded terminals.
Size S00 Standard Organization
It adopts the common S00 mounting dimensions of the SIRIUS 3RH2 series and is compatible with accessories from the same series.
project Specification
Contact configuration 2NO+2NC
coil voltage 110 V DC
Terminal type Spring-type terminals
Installation dimensions Size S00
Product Series SIRIUS 3RH2