3RH1921-1FA22

Siemens SIRIUS 3RH1921-1FA22 Attachable Contact Block  | Shop On Ebay
Factory New Parts : Warranty 12 Months​
Second-Hand Parts : Warranty 3-6 Months​
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Technical / Repair Support​
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Description

The Siemens SIRIUS 3RH1921-1FA22 is a legacy attachable contact block featuring a 4-pole configuration with 2 normally open (NO) and 2 normally closed (NC) contacts. This EN 50005 compliant component was designed for auxiliary contact expansion on contactors and relays, providing flexible switching options for control circuits. Important Note:​ This product has been phased out of production and is available only as a spare part for maintaining existing equipment. The recommended successor is the modern SIRIUS 3RH2 series contact blocks, which offer improved design, enhanced safety features, and better compatibility with current control system requirements.

Key Features

  • Phased-out product​ – Legacy attachable contact block
  • 4-pole configuration: 2 NO + 2 NC contacts
  • EN 50005 standard compliance
  • Designed for contactor and relay auxiliary expansion
  • Successor Product:​ SIRIUS 3RH2 series
  • Reliable switching performance
  • Easy attachment design

Warranty & After-Sales

  • Limited availability as discontinued spare part
  • Technical support for legacy system compatibility
  • Successor product migration assistance

Delivery Time

  • Subject to availability – please inquire

Why Choose Our Store

  • Genuine Siemens legacy components
  • Global supply network for obsolete parts
  • Expertise in control system maintenance

Applications

  • Legacy contactor auxiliary contact expansion
  • Relay contact circuit extension
  • Control panel modernizations
  • Equipment repair and maintenance
  • Spare part replacement for existing systems

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