{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3UG4632-2AA30","brand":"Siemens","brandSlug":"siemens","productSlug":"3UG4632-2AA30","canonicalUrl":"https://aoctrl.com/siemens/3UG4632-2AA30","factsUrl":"https://aoctrl.com/api/mcp/products/3UG4632-2AA30","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS Voltage monitoring relay with digital setting, 3UG4632-2AA30, AC/DC 10-600 V, 1% repeat accuracy, LCD display, IP20, snap-on mounting.","salesMarkdown":"The Siemens 3UG4632-2AA30 is a SIRIUS voltage monitoring relay with digital setting, designed to keep a sharp eye on supply rails in control panels. It measures AC or DC voltage from 10 V up to 600 V and flags both overvoltage and undervoltage conditions, with a relative repeat accuracy of 1%. That means when you set a threshold, it won't drift — you can trust the trip point shift under 1% of full scale across the operating temperature range. The measurable voltage range covers 10 to 600 V AC/DC, so it handles common 24 VDC control circuits, 120 VAC line monitoring, and 480 VAC motor feeds without needing a separate PT. The rated supply voltage is 24 V AC/DC (50/60 Hz) — that's the coil power, not the monitored voltage. It draws 1 A at 24 V, which is the contact rating for the output relay; at 125 V the contact is rated 0.2 A, and at 250 V it drops to 0.1 A. These are resistive-load numbers; inductive loads need derating or snubbing. The relay offers both auto-reset and external reset capability, with the initial value set at 0.85 and full-scale value at 1.15 — these are the hysteresis bands around the threshold. For a 24 V monitored line, the relay would pick up at 85% (20.4 V) and drop out at 115% (27.6 V) of the set point, adjustable via the digital interface. Mounting is snap-on DIN rail (22.5 mm wide), and the relay can be installed in any orientation — no derating for sideways or upside-down mounting. IP20 protection means it's for use inside a cabinet only; not rated for washdown or dust ingress. The LCD display shows the measured value and settings, making commissioning quicker — no need to probe with a meter to confirm the threshold.","metaTitle":"Siemens 3UG4632-2AA30 SIRIUS Voltage Monitoring Relay, 10-60","metaDescription":"Siemens SIRIUS 3UG4632-2AA30 voltage monitoring relay with digital setting, LCD display. Monitors AC/DC 10-600 V, 1% repeat accuracy. DIN-rail mount, IP20. Current production; sour","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Process / Temperature Controllers"],"specifications":{"Depth":"91 mm","Solid":"24 ... 16","Width":"22.5 mm","Height":"94 mm","Upwards":"0 mm","at 24 V":"1 A","Forwards":"0 mm","Stranded":"24 ... 16","at 125 V":"0.2 A","at 250 V":"0.1 A","Backwards":"0 mm","Downwards":"0 mm","auto-RESET":"Yes","At The Side":"0 mm","Rated Value":"24 V","Initial Value":"0.85","During Storage":"-40 ... +85 °C","External Reset":"Yes","For Monitoring":"AC/DC","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-40 ... +85 °C","Fastening Method":"snap-on mounting","Full-Scale Value":"1.15","Product Function":"Voltage monitoring relay","Mounting Position":"any","Product Brand Name":"SIRIUS","Between The Outputs":"Yes","Product Designation":"Voltage monitoring relay with digital setting","protection class IP":"IP20","at 50 Hz rated value":"24 V","at 60 Hz rated value":"24 V","for AWG cables solid":"2x (24 ... 16)","Design Of The Display":"LCD","Overvoltage Detection":"Yes","Undervoltage Detection":"Yes","for AWG cables stranded":"2x (24 ... 16)","Between Input And Output":"Yes","Relative Repeat Accuracy":"1 %","measurable voltage at AC":"10 ... 600 V","measurable voltage at DC":"10 ... 600 V","overvoltage detection DC":"Yes","Measurable Line Frequency":"40 ... 500 Hz","undervoltage detection DC":"Yes","Accuracy Of Digital Display":"+/-1 digit","Relative Metering Precision":"5 %","Of The Control Supply Voltage":"AC/DC","Overvoltage Detection 1 Phase":"Yes","Overvoltage Detection 3 Phase":"No","Substance Prohibitance (Date)":"05/01/2012","Type Of Electrical Connection":"spring-loaded terminals","voltage window recognition DC":"Yes","Undervoltage Detection 1 Phase":"Yes","Undervoltage Detection 3 Phases":"No","Design Of The Electrical Isolation":"Protective separation","Voltage Window Recognition 1 Phase":"Yes","Voltage Window Recognition 3 Phase":"No","With Lower Or Upper Limit Violation":"0.1 ... 20 s","operational current at 17 V minimum":"5 mA","Surge Voltage Resistance Rated Value":"4 kV","Between Control And Auxiliary Circuit":"300 V","With Degree Of Pollution 3 Rated Value":"690 V","Between Auxiliary And Auxiliary Circuit":"300 V","due to burst according to IEC 61000-4-4":"2 kV","number of CO contacts delayed switching":"1","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":"0.25 ... 1.5 mm²","Number Of Poles For Main Current Circuit":"1","Finely Stranded Without Core End Processing":"0.25 ... 1.5 mm²","shock resistance according to IEC 60068-2-27":"sinusoidal half-wave 15g / 11 ms","Between The Voltage Supply And Other Circuits":"No","operating frequency with 3RT2 contactor maximum":"5 000 1/h","vibration resistance according to IEC 60068-2-6":"1 ... 6 Hz: 15 mm, 6 ... 500 Hz: 2g","Adjustable Open/Closed-Circuit Current Principle":"Yes","Mechanical Service Life (Operating Cycles) Typical":"10 000 000","Relative Temperature-Related Measurement Deviation":"0.1 %","electrostatic discharge according to IEC 61000-4-2":"6 kV contact discharge / 8 kV air discharge","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Thermal Current Of The Switching Element With Contacts Maximum":"5 A","continuous current of the DIAZED fuse link of the output relay":"4 A","Product Component Removable Terminal For Auxiliary And Control Circuit":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/3UG4632-2AA30/alternatives.json"},"ai":{"faq":[{"question":"What voltage range can it monitor?","answer":"It measures AC or DC voltage from 10 V to 600 V, covering 24 VDC control circuits, 120 VAC line monitoring, and 480 VAC motor feeds."},{"question":"What is the repeat accuracy?","answer":"The relative repeat accuracy is 1%, meaning the trip point will not drift more than 1% of the set value under stable conditions."},{"question":"Does it have an LCD display?","answer":"Yes, it has an LCD display for showing measured values and settings, which speeds up commissioning and troubleshooting."},{"question":"What is the mounting method and IP rating?","answer":"It snaps onto a 35 mm DIN rail (22.5 mm wide) and can be mounted in any position. The IP20 rating means it is for use inside an enclosure only."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3UG4632-2AA30","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/3UG4632-2AA30 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}}