{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RF3320-1AA04","brand":"Siemens","brandSlug":"siemens","productSlug":"3RF3320-1AA04","canonicalUrl":"https://aoctrl.com/siemens/3RF3320-1AA04","factsUrl":"https://aoctrl.com/api/mcp/products/3RF3320-1AA04","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RF33 solid-state contactor, 1-pole, AC-1 / 20 A / 40 °C, 48-460 V / 24 V DC, screw terminal.","salesMarkdown":"## What the 20 A AC-1 rating means for your panel The 3RF3320-1AA04 is a single-pole solid-state contactor from the Siemens SIRIUS 3RF33 series, rated 20 A in AC-1 duty at 40 °C ambient. AC-1 is the resistive load category (IEC 60947-4-2) — heaters, incandescent lighting, or resistive banks where inrush is near steady-state. That 20 A figure is the continuous current it can carry without derating; for motor or transformer loads (AC-3/AC-4), the switching current limit will be lower, so size this into a resistive circuit, not a motor starter. The switching range is 48–460 VAC on the power side, with a 24 VDC coil. That DC coil draw is low — a standard 24 VDC PLC output or control relay can drive it without an interposing relay, simplifying the control loop. Screw terminals keep wiring straightforward for panel builders; no special crimp tooling needed. RoHS compliant since 15 Jan 2024. No UL or CSA mark is listed in the base spec, but the SIRIUS 3RF33 family typically carries CE and UKCA for European and UK markets; verify specific project approval requirements against the full manufacturer declaration.","metaTitle":"Siemens 3RF3320-1AA04 SIRIUS 3RF33 Solid-State Contactor, 20","metaDescription":"Siemens 3RF3320-1AA04 SIRIUS 3RF33 solid-state contactor, 1-pole, AC-1 rated 20 A at 40 °C, 48-460 VAC / 24 VDC coil, screw terminals. Active production, RoHS compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Solid State Relays"],"specifications":{"title":"3RF3320-1AA04","Group Code":"R711","description":"solid-state contactor 1-pole 3RF3 AC-1 / 20 A / 40 °C 48-460 V / 24 V DC screw 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 3RF33 solid-state contactors, 1-pole","lifecycle_stage":"current","Packaging Quantity":"1","Export Control Regulations":"AL : N / ECCN : 9N9999","Packaging dimensions (L x W x H)":"105.00 x 27.00 x 122.00 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/f8b8625f1461d784314f34913169979b.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3RF3320-1AA04?tree=CatalogTree"},"ai":{"faq":[{"question":"What is the closest alternative if I need a different current rating?","answer":"The SIRIUS 3RF33 family includes other single-pole variants at different AC-1 current ratings (e.g., 25 A, 32 A) with the same 48–460 VAC / 24 VDC coil and screw terminal format. The mechanical footprint and wiring pattern are consistent across the series, so swapping to a higher-rated sibling within the family is a panel-compatible change — no re-drilling or re-wiring of the DIN rail mount."},{"question":"What compliance documentation is available for this part?","answer":"RoHS compliance is confirmed from 15 Jan 2024. REACH Article 33 declares lead (CAS 7439-92-1) above 0.1% w/w. The manufacturer provides a CE declaration of conformity and UKCA marking for the SIRIUS 3RF33 series; no UL or CSA mark is listed in the base specification."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RF3320-1AA04","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/3RF3320-1AA04 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}}