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Siemens 3RH1921-1DA11 - Auxiliary Switch Block 1NO/1NC

Siemens
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Siemens 3RH1921-1DA11 is a contactor and motor starter auxiliary switch block designed for use with Siemens 3RT1 contactors and 3RH2 contactor relays to provide additional signaling or control functions. This auxiliary switch block features a 1NO/1NC contact configuration and is rated for a maximum coil voltage of 250V AC/DC, with a current rating of 10A for AC-15 and 6A for DC-13 applications. The unit weighs 0.1056 lb and is constructed with a compact, modular design for easy snap-on mounting to the main contactor or relay. It complies with IEC 60947-5-1 and UL 508 standards for industrial control equipment. Typical applications include motor control centers, conveyor systems, and pump control panels where auxiliary contacts are required for status indication or interlocking.

Key Features & Specifications
  • Type: Auxiliary switch block for contactors and motor starters
  • Configuration: 1NO/1NC
  • Voltage Rating: 250V AC/DC (maximum coil voltage)
  • Current Rating: 10A (AC-15), 6A (DC-13)
  • Weight: 0.1056 lb
  • Standards: IEC 60947-5-1, UL 508
  • Applications: Motor control centers, conveyor systems, pump control panels
  • Installation Type: Snap-on mounting to 3RT1/3RH2 devices
  • Item Subcategory: Contactor And Motor Starter Auxiliary


Product Identification
  • UPC: 075455473885
  • GTIN: 00754554738857