{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RF3125-2AA45","brand":"Siemens","brandSlug":"siemens","productSlug":"3RF3125-2AA45","canonicalUrl":"https://aoctrl.com/siemens/3RF3125-2AA45","factsUrl":"https://aoctrl.com/api/mcp/products/3RF3125-2AA45","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RF31 solid-state relay, 1-pole, 22.5 mm width, 25 A, 48-600 V, 4-30 V DC control, spring-loaded terminals, blocking voltage 1200 V.","salesMarkdown":"The Siemens 3RF3125-2AA45 is a 1-pole SIRIUS 3RF31 solid-state relay in the 22.5 mm wide housing. It's rated 25 A continuous at 48-600 VAC, controlled by a 4-30 VDC signal, with a blocking voltage of 1200 V. That 1200 V blocking means it handles the voltage spikes from inductive loads like contactor coils or solenoid valves without failing — critical when you're switching near the line's peak. The 25 A rating is for resistive loads at 40 °C ambient; for motor or transformer inrush, you'd typically derate to around 20 A continuous, so size accordingly. Spring-loaded terminals accept 0.2–2.5 mm² solid or ferruled stranded wire, strip length 8 mm. No screw torque to verify — just push and insert. That saves panel-build time on a DIN-rail assembly, especially when you're wiring a row of these for multi-zone heater control. In a control panel, you'd typically see it switching heater banks, small motor contactor coils, or pilot lights. The 4-30 VDC control range is wide enough to work with 24 VDC PLC outputs or even a 12 VDC battery-backed control circuit, so it's flexible for both industrial and mobile equipment panels. RoHS compliant since 15-01-24.","metaTitle":"Siemens 3RF3125-2AA45 SIRIUS 3RF31 SSR, 25 A, 48-600 V, 22.5","metaDescription":"Active-production Siemens 3RF3125-2AA45 SIRIUS solid-state relay, 1-pole 25 A, 48-600 VAC, 4-30 VDC control, 22.5 mm width, spring terminals. RoHS/REACH compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Solid State Relays"],"specifications":{"title":"3RF3125-2AA45","Group Code":"R711","description":"semiconductor relay, 1-pole 3RF3 width 22.5 mm, 25 A 48-600 V / 4-30 V DC spring-loaded terminal blocking voltage 1200 V","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/997f1b6bff983a7e0c34e6fbd96fe127.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3RF3125-2AA45?tree=CatalogTree"},"ai":{"faq":[{"question":"What are the key electrical ratings for this SSR?","answer":"Rated 25 A continuous at 48-600 VAC, controlled by 4-30 VDC signal, with a 1200 V blocking voltage. The 25 A is for resistive loads at 40 °C; derate for inductive or motor loads."},{"question":"What compliance documentation does Siemens provide for this part?","answer":"RoHS compliant since 15-01-24. REACH Article 33 duty to inform applies due to lead (CAS 7439-92-1) above 0.1% w/w. Export controls are AL: N / ECCN: N."},{"question":"What is the group code and product group for this part?","answer":"Group Code R711, Product Group 3725. These are Siemens internal catalog codes used for classification and cross-referencing within the SIRIUS product line."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RF3125-2AA45","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/3RF3125-2AA45 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}}