{"product_id":"siemens-analog-monitoring-relay-1c-o-24-240vac-dc","title":"Siemens Analog monitoring relay, 1C\/O, 24-240VAC\/DC","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Siemens 3UG4501-1AW30 is an analog monitoring relay with a single change-over (1C\/O) output contact and a wide supply voltage range of 24–240 V AC\/DC. Designed for conductive and resistive level monitoring, it supports two- and three-electrode configurations, enabling reliable detection of minimum, maximum, or multi-level thresholds in tanks, vessels, and process systems. Its slim 22.5 mm housing, adjustable delay times, and galvanic isolation make it a robust and versatile solution for industrial automation environments.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAnalog monitoring relay for conductive\/resistive level measurement\u003c\/li\u003e\n\u003cli\u003eWide supply voltage range: 24–240 V AC\/DC\u003c\/li\u003e\n\u003cli\u003e1 change-over output contact (1C\/O)\u003c\/li\u003e\n\u003cli\u003eSupports two- and three-electrode level detection\u003c\/li\u003e\n\u003cli\u003eAdjustable delay time from 0.5–10 s for start-up or limit violation\u003c\/li\u003e\n\u003cli\u003eMeasuring range 2 kΩ to 200 kΩ\u003c\/li\u003e\n\u003cli\u003eSlim 22.5 mm width for compact DIN-rail mounting\u003c\/li\u003e\n\u003cli\u003eGalvanic isolation between input and output\u003c\/li\u003e\n\u003cli\u003eHigh mechanical endurance (approx. 10 million operating cycles)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArticle Number:\u003c\/strong\u003e 3UG4501-1AW30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Analog monitoring relay\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e 24–240 V AC\/DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput:\u003c\/strong\u003e 1 change-over contact (1C\/O)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasuring Range:\u003c\/strong\u003e 2 kΩ…200 kΩ (conductive\/resistive levels)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDelay Time:\u003c\/strong\u003e Adjustable 0.5–10 s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Ratings (AC-15):\u003c\/strong\u003e 3 A at 250\/400 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Ratings (DC-13):\u003c\/strong\u003e 1 A at 24 V; 0.2 A at 125 V; 0.1 A at 250 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation Voltage (Ui):\u003c\/strong\u003e 300 V (OVC III, PD 3)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnections:\u003c\/strong\u003e Screw terminals up to 4 mm² (solid) \/ 2.5 mm² (stranded)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (H × W × D):\u003c\/strong\u003e 92 × 22.5 × 91 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e –25 °C to +60 °C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection:\u003c\/strong\u003e Galvanic isolation between sensor and output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Life:\u003c\/strong\u003e Approx. 10 million switching cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCompliance \u0026amp; Certifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePart of the Siemens SIRIUS 3UG4 monitoring relay family\u003c\/li\u003e\n\u003cli\u003eDesigned to comply with industrial monitoring and control standards\u003c\/li\u003e\n\u003cli\u003eSuitable for overvoltage category III, pollution degree 3 environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eSuitable for level detection in conductive liquids, overflow and dry-run protection, pump control, tank monitoring, and process automation. Commonly used in water treatment systems, chemical and food processing plants, OEM machinery, and electrical control panels requiring precise analog level supervision.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":40775082934336,"sku":"3UG4501-1AW30","price":1663.49,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0556\/3662\/3424\/files\/3UG4501-1AW30.jpg?v=1763034842","url":"https:\/\/industrial.rubicon.tech\/products\/siemens-analog-monitoring-relay-1c-o-24-240vac-dc","provider":"Rubicon Group Industrial Technology Shop","version":"1.0","type":"link"}