3RH1921-1HA22

3RH1921-1HA22 is a SIRIUS 3RT1 contactor with a front-mounted 4-pole auxiliary switch assembly, consisting of 2 normally open and 2 normally closed contacts, screw terminal wiring, conforming to EN50012 standard, and suitable for S0~S3 size contactors. The original manufacturer's note indicates that it is no longer in production.

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The 3RH1921-1HA22 is a front-mounted 4-pole auxiliary switch assembly for Siemens SIRIUS 3RT1 series contactors, providing 2 sets of normally open and 2 sets of normally closed contacts, which can greatly expand the number of signal points.

Core Product Advantages and Features
4-pole 2NO+2NC contact
It provides 4 sets of contacts at a time to meet the needs of multi-channel signal feedback and interlocking.
Front design
It is snap-on mounted on the front of the contactor and is suitable for small models from S0 to S3.
Screw terminal wiring
Standard screw terminals make wiring installation convenient.
Original manufacturer has ceased production.
The manufacturer has announced that this model has been discontinued, and the next model is the SIRIUS 3RH2 series.
project Specification
Contact configuration 2 NO + 2 NC (4 poles)
Installation method Front mounting, screw terminals
Applicable size S0...S3 (3RT1 series contactors)
Applicable Standards EN 50012
Product Status The original manufacturer has discontinued production; the subsequent model is SIRIUS 3RH2.