{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3UG5512-1BR21","brand":"Siemens","brandSlug":"siemens","productSlug":"3UG5512-1BR21","canonicalUrl":"https://aoctrl.com/siemens/3UG5512-1BR21","factsUrl":"https://aoctrl.com/api/mcp/products/3UG5512-1BR21","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3UG5 line monitoring relay, 3UG5512-1BR21, 3-phase 160-690 V AC, 15-70 Hz, 2 changeover contacts, screw terminal, SIL 1/PL c.","salesMarkdown":"The Siemens 3UG5512-1BR21 is a line monitoring relay that watches three-phase mains for phase failure, phase sequence reversal, and asymmetry — the three faults that stall a motor or cook a drive input stage. It accepts 3x 160-690 V AC, 15-70 Hz, so it covers 208 V through 600 V class systems without a separate PT. Two changeover contacts give you a healthy signal and a trip output on separate circuits, which is handy for a PLC input plus a local alarm lamp. Rated SIL 1 / PL c, meaning it can serve in basic safety functions where the risk reduction is modest — think monitoring a pump motor before a manual reset, not a press guard. The screw terminals are standard for panel wiring; no special tooling needed. RoHS compliance effective June 2023, with REACH Article 33 disclosure for lead above 0.1% w/w (CAS 7439-92-1). No export restrictions (AL: N / ECCN: N). RoHS compliant since June 2023. REACH candidate list substance: lead (CAS 7439-92-1) > 0.1% w/w — disclosed per Article 33. No UL or CSA listing appears in the spec record; the part carries CE marking for the European market.","metaTitle":"Siemens 3UG5512-1BR21 Line Monitoring Relay, 3x160-690V AC,","metaDescription":"Active-production Siemens 3UG5512-1BR21 monitoring relay for phase failure, sequence & asymmetry. 3x160-690V AC, 15-70 Hz, 2 changeover contacts, SIL 1/PL c. RoHS/REACH compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Process / Temperature Controllers"],"specifications":{"title":"3UG5512-1BR21","Group Code":"R711","description":"monitoring relay phase failure, phase sequence and asymmetry monitoring 3x 160-690 V AC, 15-70 Hz 2 changeover contacts screw terminal SIL 1/PL c","Product Group":"5885","Product class":"A: Standard product which is a stock item could be returned within the returns guidelines/period.","Quantity Unit":"1 Piece","Product Family":"Line monitoring","lifecycle_stage":"current","Packaging Quantity":"1","Export Control Regulations":"AL : N / ECCN : N","Packaging dimensions (L x W x H)":"128.00 x 112.00 x 36.00 mm","Compliance with the substance restrictions according to RoHS directive":"Since: 01-06-23","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/c7d6ce65172669f663ff1076e51e4863.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3UG5512-1BR21?tree=CatalogTree"},"ai":{"faq":[{"question":"What is the group code and product group for this part?","answer":"Group code R711, product group 5885. These are Siemens internal classification codes used for catalog sorting and cross-reference lookups."},{"question":"What compliance documentation is available for the 3UG5512-1BR21?","answer":"RoHS compliant since June 2023. REACH Article 33 disclosure: lead (CAS 7439-92-1) above 0.1% w/w. No export restrictions (AL: N / ECCN: N). The spec record does not list UL or CSA certification; CE marking applies for European markets."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3UG5512-1BR21","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/3UG5512-1BR21 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}}