{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3UG5642-1CW31","brand":"Siemens","brandSlug":"siemens","productSlug":"3UG5642-1CW31","canonicalUrl":"https://aoctrl.com/siemens/3UG5642-1CW31","factsUrl":"https://aoctrl.com/api/mcp/products/3UG5642-1CW31","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3UG5642-1CW31 digital monitoring relay, current, active current, voltage, cos-phi and performance monitoring, up to 690 V AC/DC, up to 15 A, supply 24-240 V AC/DC, 50-60 Hz, ON delay and tripping delay 0.1-999.9 s, 2 changeover contacts, screw terminal, SIL 1/PL c.","salesMarkdown":"The Siemens 3UG5642-1CW31 is a digital monitoring relay that tracks current, active current, voltage, power factor (cos-phi), and active power on a single-phase or three-phase line up to 690 V AC/DC and up to 15 A. It operates from a universal supply of 24 to 240 V AC/DC at 50/60 Hz, making it straightforward to drop into control panels with mixed voltage rails. Both ON-delay and tripping delay are adjustable from 0.1 to 999.9 seconds, which gives you the flexibility to handle inrush currents or transient events without nuisance tripping. The two changeover contacts (2 C/O) provide independent signaling paths for alarm and control logic. For compliance documentation, the relay has been RoHS-compliant since June 2023 and carries a REACH Article 33 notification for lead (CAS 7439-92-1) above 0.1% w/w. ## Integration Notes The relay uses screw terminals for wiring, which is the standard for panel builders working with ferrule-ended stranded conductors. The packaging dimensions of 127 x 111 x 38 mm fit a typical DIN-rail footprint, and the single-unit packaging means you order per piece for BOM line items. Rated for SIL 1 / PL c, the 3UG5642-1CW31 can be used in basic safety-related monitoring applications where a single-channel architecture with diagnostic coverage is acceptable. This is not a high-integrity safety relay, but it suits conveyor jam detection, pump dry-run protection, or motor load monitoring.","metaTitle":"Siemens 3UG5642-1CW31 Digital Monitoring Relay, 24-240 V AC/","metaDescription":"Siemens 3UG5642-1CW31 digital monitoring relay for current, voltage, power factor, and power up to 690 V AC/DC, 15 A. Active lifecycle, RoHS compliant. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Process / Temperature Controllers"],"specifications":{"title":"3UG5642-1CW31","Group Code":"R711","description":"digital monitoring relay current, active current, voltage, cos-phi and performance monitoring up to 690 V AC/DC up to 15 A supply voltage 24... 240 V AC/DC, 50.. 60 Hz ON delay and tripping delay 0.1..999.9 s 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":"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/612c726d806cb2e0c3359b7560e28d39.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3UG5642-1CW31?tree=CatalogTree"},"ai":{"faq":[{"question":"What compliance documentation is available for this relay?","answer":"The relay is RoHS-compliant since June 2023 and includes a REACH Article 33 notification for lead content above 0.1% w/w. Export control is AL: N / ECCN: 9N9999."},{"question":"What are the key ratings for the 3UG5642-1CW31?","answer":"It monitors up to 690 V AC/DC and 15 A, with a universal supply of 24-240 V AC/DC at 50/60 Hz. ON-delay and tripping delay are adjustable from 0.1 to 999.9 seconds, and it provides two changeover contacts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3UG5642-1CW31","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/3UG5642-1CW31 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}}