{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3UG5742-1CW30","brand":"Siemens","brandSlug":"siemens","productSlug":"3UG5742-1CW30","canonicalUrl":"https://aoctrl.com/siemens/3UG5742-1CW30","factsUrl":"https://aoctrl.com/api/mcp/products/3UG5742-1CW30","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3UG5 digital monitoring relay, 3UG5742-1CW30, with Bluetooth interface for current, active current, voltage, power factor, and power monitoring up to 690 V AC/DC, 15 A, 24-240 V AC/DC supply, 2 changeover contacts.","salesMarkdown":"The Siemens 3UG5742-1CW30 is a digital monitoring relay from the SIRIUS 3UG5 family, designed to measure current, active current, voltage, power factor (cos-phi), and active power. It operates on a supply voltage of 24 to 240 V AC/DC at 50/60 Hz and handles monitoring circuits up to 690 V AC/DC and up to 15 A directly. The relay includes Bluetooth connectivity for wireless parameterization and data readout, plus two changeover contacts for alarm or trip outputs. The 690 V AC/DC rating covers most industrial control voltages up to 480/600 V class systems with headroom. The 15 A direct-current path means you can wire the monitored circuit straight through the relay without an external current transformer for loads up to that level. The 24-240 V AC/DC supply range accepts any common control voltage from 24 VDC to 240 VAC, simplifying panel wiring — one relay works across different cabinet voltages without a separate power supply module. On-delay and tripping delay are adjustable from 0.1 to 999.9 s, giving you time grading for coordinated fault response. ## Sourcing and procurement note As an active, current-production item, the 3UG5742-1CW30 is sourced through standard Siemens distribution channels. For BOM-line commitment or urgent line-down replacement, submit an RFQ with your required quantity and target delivery window. The relay ships individually (packaging quantity 1) in dimensions 127 x 111 x 38 mm.","metaTitle":"Siemens 3UG5742-1CW30 Digital Monitoring Relay, Bluetooth, u","metaDescription":"Active digital monitoring relay for current, voltage, power factor, and power. Bluetooth interface, 24-240 V AC/DC supply, 2 changeover contacts. RoHS compliant. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Process / Temperature Controllers"],"specifications":{"Group Code":"R711","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 : EAR99","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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d361205ab92ee00b6f95c7fda4c6752f.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3UG5742-1CW30?tree=CatalogTree","alternativesUrl":"https://aoctrl.com/api/mcp/products/3UG5742-1CW30/alternatives.json"},"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 declaration for lead content (CAS 7439-92-1 above 0.1% w/w). Export control is AL: N / ECCN: EAR99."},{"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":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3UG5742-1CW30","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/3UG5742-1CW30 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}