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Siemens 3RH1911-1HA12 - Auxiliary Switch Block 1NO/2NC 690V

Siemens
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Siemens 3RH1911-1HA12 is a contactor and motor starter auxiliary switch block designed for use with Siemens 3RT1 contactors and 3RU1/3RB3 overload relays to provide additional signaling or control functions. This auxiliary contact block operates with a maximum coil voltage of 690 V AC and supports a rated operational current of up to 10 A for AC-15 applications. The component weighs 0.0858 lb and features a 1NO/2NC contact configuration, constructed with durable thermoplastic materials for reliable performance in industrial environments. It complies with IEC 60947-5-1 and UL/CSA standards, ensuring safe integration into motor control circuits. Typical applications include supplementary contact signaling in conveyor systems, pump controls, and HVAC equipment within factory automation and process control panels.

Key Features & Specifications
  • Type: Contactor And Motor Starter Auxiliary Switch Block
  • Voltage Rating: 690 V AC
  • Current Rating: 10 A (AC-15)
  • Configuration: 1NO/2NC
  • Weight: 0.0858 lb
  • Standards: IEC 60947-5-1, UL, CSA
  • Applications: Supplementary signaling in motor control circuits for conveyors, pumps, HVAC
  • Manufacturer: Siemens
  • Item Subcategory: Contactor And Motor Starter Auxiliary


Product Identification
  • UPC: 754554415864