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The Siemens 3RH1921-1CA10 is a 230-volt auxiliary switch block designed for contactors. This unit is ideal for switching motors with one normally open (1NO) contact. It uses a screw terminal connection for easy wiring and installation in various electrical applications. The contactor block is a key component in controlling and automating power circuits across many industrial settings.
This auxiliary switch block is suitable for use with Siemens 3RT1 series contactors and complies with IP20 enclosure ratings.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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