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The Siemens 3RH1921-1JA11 is a 230 Volt, 6 Amp, 2-Pole auxiliary switch block designed for motor contactors. It features one normally open (1NO) and one normally closed (1NC) connection. The product is suitable for DIN rail mounting and uses a screw connection for easy installation.
This model provides reliable auxiliary switching for control applications in industrial settings.
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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