{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2122-1BG40-Z X95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2122-1BG40-Z-X95","canonicalUrl":"https://aoctrl.com/siemens/3RH2122-1BG40-Z-X95","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2122-1BG40-Z%20X95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS contactor relay, 3RH2122-1BG40-Z X95, 2 NO + 2 NC, 125 V DC coil, screw terminal, frame size S00.","salesMarkdown":"The Siemens 3RH2122-1BG40-Z X95 is a contactor relay from the SIRIUS family, built into the S00 frame size. It carries 2 normally-open and 2 normally-closed contacts, with a 125 V DC coil and screw terminals. This is the part you reach for when a control circuit needs a compact relay to switch pilot loads — signal lights, contactor coils, PLC outputs — on a 125 V DC bus. The S00 frame keeps panel density high; it snaps onto DIN rail alongside other SIRIUS gear. The 125 V DC coil rating is the first gate: if your control voltage is 125 V DC, this relay pulls in cleanly; below that dropout threshold, it won't hold. The 2 NO + 2 NC contact arrangement means you get two isolated make contacts and two isolated break contacts in one package — enough to interlock a starter and signal back to the PLC without an auxiliary block. Screw terminals on the S00 frame accept wire up to the standard cross-section for this class. No spring-cage here — if your panel spec calls for screw-clamp terminations, this is the variant. It is in standard production. RoHS compliance dates from October 2009; REACH candidate-list information is available per Article 33. ## Panel integration Frame size S00 clips onto 35 mm DIN rail. The 61.5 x 50.0 x 77.5 mm footprint leaves room for adjacent contactors or overloads in a motor-control row. No derating needed at standard panel ambient; just verify the 125 V DC supply is stiff enough for the inrush.","metaTitle":"Siemens 3RH2122-1BG40-Z X95 Contactor Relay, 2NO+2NC, 125 V","metaDescription":"Active-production Siemens contactor relay, 2 NO + 2 NC contacts, 125 V DC coil, screw terminal, S00 frame. RoHS-compliant since 2009. Sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"title":"3RH2122-1BG40-Z X95","Group Code":"R711","description":"contactor relay, 2 NO + 2 NC, 125 V DC, screw terminal, frame size S00, reusable packaging, pack = 144 units","Product Group":"5331","Product class":"A: Standard product which is a stock item could be returned within the returns guidelines/period.","Quantity Unit":"1 Piece","Product Family":"Ordering Data Overview","lifecycle_stage":"current","Packaging Quantity":"1","Export Control Regulations":"AL : N / ECCN : N","Packaging dimensions (L x W x H)":"61.5 x 50.00 x 77.5 mm","Compliance with the substance restrictions according to RoHS directive":"Since: 01-10-09","REACH Art. 33 Duty to inform according to the current list of candidates":"Reach Information"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/10308b898f528b847b47194c7f93df49.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3RH2122-1BG40-ZX95?tree=CatalogTree"},"ai":{"faq":[{"question":"What compliance documentation is available for this relay?","answer":"RoHS compliance since 1 October 2009 is documented. REACH candidate-list information is provided per Article 33 of the EU regulation."},{"question":"What is the group code R711?","answer":"R711 is the internal group code assigned to this part in Siemens' ordering data system."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2122-1BG40-Z-X95","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/3RH2122-1BG40-Z-X95 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}