{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RF3190-3AA44","brand":"Siemens","brandSlug":"siemens","productSlug":"3RF3190-3AA44","canonicalUrl":"https://aoctrl.com/siemens/3RF3190-3AA44","factsUrl":"https://aoctrl.com/api/mcp/products/3RF3190-3AA44","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RF31 solid-state relay, 1-pole, 22.5 mm width, 90 A, 48-460 V AC load, 4-30 V DC control, ring cable lug connection for external heatsink mounting.","salesMarkdown":"The Siemens 3RF3190-3AA44 is a 1-pole SIRIUS 3RF31 solid-state relay in the 22.5 mm wide housing, rated for 90 A continuous load current across a 48-460 V AC supply range. Control is 4-30 V DC, making it compatible with standard 24 V DC PLC outputs without a series resistor. The ring cable lug termination is designed for bolting to an external heatsink — this relay has no internal heatsink and relies on the mounting surface for thermal management. The ring cable lug connection (not spring-cage or screw-clamp) means you need a bolted bus bar or stud on the heatsink for the load terminals — plan for M5 or M6 hardware depending on lug ring size. ## What the 90 A rating means in practice 90 A is the continuous rated current for resistive loads (AC-1 duty class). For motor loads or inductive switching, derate per the SIRIUS application manual — typically 50-60% of the resistive rating. The 48-460 V AC range covers common three-phase line voltages (230 V, 400 V, 480 V) but note this is a single-pole device: for three-phase switching you need three units or a three-pole variant. The 4-30 V DC control threshold means it triggers reliably from 24 V DC logic outputs, even with long cable runs that drop a few volts.","metaTitle":"Siemens 3RF3190-3AA44 SIRIUS solid-state relay, 90 A, 1-pole","metaDescription":"Siemens SIRIUS 3RF31 solid-state relay, 1-pole, 22.5 mm, 90 A, 48-460 V AC / 4-30 V DC control, ring cable lug. Active production. RoHS/REACH compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Solid State Relays"],"specifications":{"title":"3RF3190-3AA44","Group Code":"R711","description":"semiconductor relay, 1-pole 3RF3 width 22.5 mm, 90 A 48-460 V / 4-30 V DC ring cable lug connection for mounting on available cooling surfaces","Product Group":"3725","Product class":"A: Standard product which is a stock item could be returned within the returns guidelines/period.","Quantity Unit":"1 Piece","Product Family":"SIRIUS 3RF31 solid-state relays, 1-pole, 22.5 mm","lifecycle_stage":"current","Packaging Quantity":"1","Export Control Regulations":"AL : N / ECCN : N","Packaging dimensions (L x W x H)":"104.00 x 44.00 x 48.00 mm","Compliance with the substance restrictions according to RoHS directive":"Since: 15-01-24","REACH Art. 33 Duty to inform according to the current list of candidates":"Lead CAS-No. 7439-92-1 > 0,1 % (w / w)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6b94045b27f3c84c20d0430ef55ce228.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3RF3190-3AA44?tree=CatalogTree"},"ai":{"faq":[{"question":"What compliance documentation is available for this relay?","answer":"RoHS compliant since January 2024. REACH Article 33 disclosure confirms lead (CAS 7439-92-1) above 0.1% w/w. No UL or CSA listing is recorded in the spec data — confirm with Siemens if third-party certification is required for your application."},{"question":"What is the group code and product group for this part?","answer":"Group Code R711, Product Group 3725 — these are Siemens internal classification codes used for catalog sorting and ERP filtering."},{"question":"Does this relay include an internal heatsink?","answer":"No. The ring cable lug connection is designed for mounting on an available cooling surface — the relay relies entirely on the external heatsink or panel for thermal management. The 90 A rating assumes adequate heatsinking."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RF3190-3AA44","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/3RF3190-3AA44 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}}