{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3UG4582-1AW31","brand":"Siemens","brandSlug":"siemens","productSlug":"3UG4582-1AW31","canonicalUrl":"https://aoctrl.com/siemens/3UG4582-1AW31","factsUrl":"https://aoctrl.com/api/mcp/products/3UG4582-1AW31","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3UG4582-1AW31 insulation monitoring relay with analog setting, 22.5 mm wide, 24-240 V AC/DC control supply, screw terminals, IP20.","salesMarkdown":"The adjustable response range spans 0.85 to 1.1 times the full-scale value, with a 1-second delayed switching to ignore transient dips. It monitors AC/DC control circuits with a measurable voltage range of 0 to 250 V AC and a line frequency from 15 to 400 Hz, making it suitable for both 50 Hz and 60 Hz mains as well as variable-frequency drives on the line side. The control supply voltage is universal AC/DC, rated 24 to 240 V at both 50 and 60 Hz, so it can be powered from the same circuit it monitors or from a separate control transformer without worrying about polarity. Housed in a 22.5 mm wide enclosure (78 mm high, 100 mm deep), it snaps onto standard 35 mm DIN rail and can be mounted in any orientation — no clearance required above, below, or to the sides. Screw-type terminals accept solid wire 20-12 AWG (1x) or 20-14 AWG (2x), and stranded 18-14 AWG (1x) or 18-16 AWG (2x). ## Electrical ratings and environment Rated surge voltage resistance of 6000 V gives it solid isolation for industrial control panels where transients from contactors or drives are common. An error memory function (latching) is built in, so the relay holds the alarm state after a fault clears — useful for troubleshooting intermittent ground faults.","metaTitle":"Siemens 3UG4582-1AW31 SIRIUS Insulation Monitoring Relay, 24","metaDescription":"Siemens 3UG4582-1AW31 SIRIUS insulation monitoring relay. Monitors AC/DC systems up to 250 V, 15-400 Hz. 22.5 mm wide, DIN-rail mount. Active production. RoHS compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Process / Temperature Controllers"],"specifications":{"Depth":"100 mm","Solid":"20 ... 12","Width":"22.5 mm","Height":"78 mm","Upwards":"0 mm","Forwards":"0 mm","Stranded":"18 ... 14","Backwards":"0 mm","Downwards":"0 mm","At The Side":"0 mm","Error Memory":"Yes","Initial Value":"0.85","For Monitoring":"AC/DC","lifecycle_stage":"current","Fastening Method":"snap-on fastening on 35 mm DIN rail","Full-Scale Value":"1.1","Product Function":"Insulation monitor","Delayed Switching":"1","Mounting Position":"any","Product Brand Name":"SIRIUS","Product Designation":"Insulation monitoring relay with analog setting","at AWG cables solid":"1x (20 ... 12), 2x (20 ... 14)","protection class IP":"IP20","at 50 Hz rated value":"24 ... 240 V","at 60 Hz rated value":"24 ... 240 V","at AWG cables stranded":"1x (18 ... 14), 2x (18 ... 16)","measurable voltage at AC":"0 ... 250 V","Measurable Line Frequency":"15 ... 400 Hz","Of The Control Supply Voltage":"AC/DC","Substance Prohibitance (Date)":"05/01/2012","Type Of Electrical Connection":"screw-type terminals","Operating Frequency Rated Value":"15 ... 400 Hz","Ambient Temperature During Operation":"-25 ... +60 °C","Surge Voltage Resistance Rated Value":"6 000 V","Of The Operating Voltage For Actuation":"AC/DC","number of NC contacts delayed switching":"0","number of NO contacts delayed switching":"0","reference code according to IEC 81346-2":"K","Finely Stranded With Core End Processing":"0.5 ... 2.5 mm²","control supply voltage at DC rated value":"24 ... 240 V","Finely Stranded Without Core End Processing":"0.5 ... 2.5 mm²","Tightening Torque With Screw-Type Terminals":"0.6 ... 0.8 N·m","number of NC contacts for auxiliary contacts":"0","number of NO contacts for auxiliary contacts":"0","Adjustable Open/Closed-Circuit Current Principle":"No","Thermal Current Of The Switching Element With Contacts Maximum":"4 A","Product Component Removable Terminal For Auxiliary And Control Circuit":"No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/3UG4582-1AW31/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does this relay carry?","answer":"RoHS compliance is confirmed with a substance prohibitance date of May 1, 2012. The product reference code per IEC 81346-2 is K."},{"question":"What are the key electrical ratings?","answer":"Control supply voltage is 24-240 V AC/DC (50/60 Hz). It monitors AC/DC systems up to 250 V AC with a frequency range of 15-400 Hz. Surge voltage resistance is 6000 V."},{"question":"What is the physical size and mounting?","answer":"Width 22.5 mm, height 78 mm, depth 100 mm. Snaps onto 35 mm DIN rail; any mounting orientation; no clearance gaps required. IP20 rated."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3UG4582-1AW31","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/3UG4582-1AW31 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}}