{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3UG5643-1CS20","brand":"Siemens","brandSlug":"siemens","productSlug":"3UG5643-1CS20","canonicalUrl":"https://aoctrl.com/siemens/3UG5643-1CS20","factsUrl":"https://aoctrl.com/api/mcp/products/3UG5643-1CS20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3UG5643-1CS20 digital monitoring relay, current/active current/voltage/power factor/power monitoring, 90-690 V AC/DC supply, 0.05-10 A input, 24-240 V AC/DC control, 2 changeover contacts, screw terminal.","salesMarkdown":"The Siemens 3UG5643-1CS20 is a digital monitoring relay that tracks current, active current, voltage, power factor, and power on a single device. It accepts a supply voltage of 90 to 690 V AC/DC and measures current from 0.05 to 10 A. The control supply is 24 to 240 V AC/DC, 50/60 Hz. On-delay and tripping delay are independently adjustable from 0.1 to 999.9 s. Outputs are two changeover contacts with screw terminals. The 90-690 V AC/DC supply range means this relay can be powered directly from most industrial control voltages without an external step-down transformer. The 0.05-10 A current input covers motor feeder monitoring, heater bank load tracking, and general branch-circuit current sensing. The 24-240 V AC/DC control supply powers the internal logic and relay coils. The adjustable on-delay and tripping delay (0.1-999.9 s) let you discriminate between momentary inrush and a sustained fault — useful for motor start-up or capacitor bank switching where a brief overcurrent is normal. Packaged at 127 x 111 x 38 mm, it occupies roughly the footprint of a standard DIN-rail mounted relay. The screw terminals accept the usual panel wiring without special tooling. The two changeover contacts give one normally-open and one normally-closed set per output, which is enough to drive an alarm lamp and a separate trip signal to a PLC input.","metaTitle":"Siemens 3UG5643-1CS20 Digital Monitoring Relay, 90-690 V AC/","metaDescription":"Siemens 3UG5643-1CS20 digital monitoring relay for current, voltage, power factor, and power. 90-690 V AC/DC supply, 0.05-10 A input, adjustable delays. Active lifecycle, RoHS comp","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Process / Temperature Controllers"],"specifications":{"title":"3UG5643-1CS20","Group Code":"R711","description":"digital monitoring relay current, active current, voltage, cos-phi and performance monitoring 90 to 690 V AC/DC with internal power supply 0.05 to 10 A 24... 240 V AC/DC, 50.. 60 Hz ON delay and tripping delay 0.1..999.9 s 2 changeover contacts 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":"Current, active current, voltage, power factor and power monitoring","lifecycle_stage":"current","Packaging Quantity":"1","Export Control Regulations":"AL : N / ECCN : 9N9999","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/24c78a9f8d3d9c9744e844d9c1dcffa7.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3UG5643-1CS20?tree=CatalogTree"},"ai":{"faq":[{"question":"What is the group code and product group for this part?","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/3UG5643-1CS20","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/3UG5643-1CS20 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}}