{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3UG5816-1AA40","brand":"Siemens","brandSlug":"siemens","productSlug":"3UG5816-1AA40","canonicalUrl":"https://aoctrl.com/siemens/3UG5816-1AA40","factsUrl":"https://aoctrl.com/api/mcp/products/3UG5816-1AA40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS Line monitoring relay, digitally adjustable, 3UG5816-1AA40, 90-690 VAC, 15-70 Hz, 1 changeover contact, screw terminal, IO-Link.","salesMarkdown":"The Siemens 3UG5816-1AA40 is a digitally adjustable monitoring relay from the SIRIUS line monitoring family, designed to supervise three-phase mains for phase failure, phase sequence, asymmetry, frequency deviation, overvoltage, and undervoltage. It accepts a supply range of 90 to 690 V AC (15 to 70 Hz) and provides one changeover contact. The built-in IO-Link interface lets a PLC or IO-Link master read measured values and reconfigure thresholds remotely. The 90–690 V AC operating range covers standard low-voltage mains from 110 V to 480 V without needing a separate control transformer — one part number for the whole plant voltage spread. The 15–70 Hz frequency window handles both 50 Hz and 60 Hz grids plus variable-frequency gensets or emergency supplies that drift below 50 Hz. The single changeover contact (SPDT) is rated for the control circuit, not the motor power; it switches the PLC digital input or the contactor coil, so the relay itself draws only the loop power from the IO-Link master. The digital adjustment means no trim pots to drift or seal after commissioning — all thresholds and hysteresis are set via IO-Link or the front-panel buttons. For a brewery CIP skid or a cement kiln feeder, that makes the relay traceable: the IO-Link master logs the parameter set, so every batch or shift change is documented without a technician tweaking a dial.","metaTitle":"Siemens 3UG5816-1AA40 Line Monitoring Relay, 90-690 VAC, IO-","metaDescription":"Siemens 3UG5816-1AA40 digitally adjustable monitoring relay for phase failure, sequence, asymmetry, frequency, over/undervoltage. 90-690 VAC, 15-70 Hz, 1 changeover contact, IO-Lin","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Process / Temperature Controllers"],"specifications":{"title":"3UG5816-1AA40","Group Code":"R711","description":"digitally adjustable monitoring relay phase failure, phase sequence, asymmetry, frequency, overvoltage and undervoltage monitoring with/without N conductor for IO-Link 3x 90-690 V AC, 15-70 Hz 1 changeover contact screw terminal","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)":"127.00 x 111.00 x 38.00 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/961a1bd366808d9e64cbd32701289472.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3UG5816-1AA40?tree=CatalogTree"},"ai":{"faq":[{"question":"What is the group code and product group for the 3UG5816-1AA40?","answer":"The group code is R711 and the product group is 5885."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3UG5816-1AA40","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/3UG5816-1AA40 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}}