{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1911-1FC22-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1911-1FC22-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RH1911-1FC22-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1FC22-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch block, 3RH1911-1FC22-ZW97, 2NO+2NC, screw terminals, size S00, DIN EN50005.","salesMarkdown":"## What the contacts mean for your circuit The 3RH1911-1FC22-ZW97: The 2NO+2NC contact arrangement gives you two independent signal paths for feedback or interlocking. On a motor starter, one NO pair typically reports the main contactor state to a PLC, while the NC pair blocks a downstream starter from energizing until this one drops out. The 2U designation indicates the contact arrangement per DIN EN50005 — the contacts are electrically isolated from each other, so you can mix control voltages on the same block. ## Panel integration and packing The block clips directly onto the front of the contactor or contactor relay — no tools needed for mounting, just a screwdriver for the terminals. This variant ships in multi-unit packing of 140 pieces, which is the standard bulk pack for panel builders running multiple identical starters.","metaTitle":"Siemens 3RH1911-1FC22-ZW97 Auxiliary Switch Block, 2NO+2NC,","metaDescription":"Siemens 3RH1911-1FC22-ZW97 auxiliary switch block, 2NO+2NC contacts, screw connection, size S00 for contactor relays. Lifecycle stage: current. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=298659&mlfb=3RH1911-1FC22-ZW97","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1911-1FC22-ZW97/alternatives.json"},"ai":{"faq":[{"question":"What is the contact arrangement on this auxiliary switch block?","answer":"It provides 2 normally-open and 2 normally-closed contacts (2NO+2NC), with screw-type terminals. The contact arrangement follows DIN EN50005 for mounting on size S00 contactor relays."},{"question":"How is this part packed for ordering?","answer":"It ships in multi-unit packing of 140 pieces per package. This bulk format is intended for panel builders and OEMs who need consistent stock for multiple starters."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1911-1FC22-ZW97","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RH1911-1FC22-ZW97 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}