{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RF3125-2AA42","brand":"Siemens","brandSlug":"siemens","productSlug":"3RF3125-2AA42","canonicalUrl":"https://aoctrl.com/siemens/3RF3125-2AA42","factsUrl":"https://aoctrl.com/api/mcp/products/3RF3125-2AA42","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RF31 solid-state relay, 1-pole 22.5 mm width, 25 A, 24-230 V / 4-30 V DC spring-loaded terminal.","salesMarkdown":"The Siemens 3RF3125-2AA42 is a SIRIUS 3RF31 series 1-pole solid-state relay in the 22.5 mm width, rated for 25 A continuous current. It switches loads on a 24-230 V AC supply, controlled by a 4-30 V DC signal from a PLC or sensor output. The spring-loaded terminal block accepts solid or ferruled stranded wire — no screwdriver needed for termination, which speeds up panel wiring and eliminates torque checks. This is a semiconductor relay, meaning there are no moving contacts to arc or wear. It's built for frequent switching of resistive or lightly inductive loads — heaters, lamps, solenoid valves — where a mechanical relay would fatigue. The 25 A rating covers the common control-panel load range; the 22.5 mm housing fits standard DIN-rail enclosures alongside contactors and breakers. RoHS compliance is confirmed since 15-01-24. No separate base required; the relay is self-contained. The 4-30 V DC control input is compatible with 24 V PLC outputs directly, no interposing relay needed.","metaTitle":"Siemens 3RF3125-2AA42 SIRIUS 3RF31 solid-state relay, 25 A","metaDescription":"Siemens SIRIUS 3RF31 1-pole solid-state relay, 25 A, 24-230 V AC / 4-30 V DC control, spring-loaded terminals, 22.5 mm width. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Solid State Relays"],"specifications":{"title":"3RF3125-2AA42","Group Code":"R711","description":"semiconductor relay, 1-pole 3RF3 width 22.5 mm, 25 A 24-230 V / 4-30 V DC spring-loaded terminal","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/3006c2e8d80ca9d450d10c896d56358b.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3RF3125-2AA42?tree=CatalogTree"},"ai":{"faq":[{"question":"What compliance documentation is available for this part?","answer":"RoHS compliance is confirmed since 15-01-24. The part contains lead above 0.1% w/w per the REACH candidate list, which must be declared in supply chain documentation. Export control classification is AL: N / ECCN: N."},{"question":"What is the group code and product group for this relay?","answer":"The group code is R711, and the product group is 3725."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RF3125-2AA42","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/3RF3125-2AA42 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}