{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3UG4625-2CW30","brand":"Siemens","brandSlug":"siemens","productSlug":"3UG4625-2CW30","canonicalUrl":"https://aoctrl.com/siemens/3UG4625-2CW30","factsUrl":"https://aoctrl.com/api/mcp/products/3UG4625-2CW30","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3UG4625-2CW30 residual current monitoring relay with digital setting, 30 mA … 40 A measuring range, 24 … 240 V AC/DC supply, IP20.","salesMarkdown":"The Siemens 3UG4625-2CW30 is a SIRIUS residual current monitoring relay with digital setting, designed for three-phase supplies. It measures residual current from 30 mA up to 40 A, with a measurable current range of 10 mA to 43 A — so it covers both sensitive ground-fault detection (down to 30 mA) and higher-leakage industrial loads. The relay is powered by a 24–240 V AC/DC control supply, making it usable across most global panel voltages without a separate power supply module. The 30 mA to 40 A measuring range means this relay can detect a 30 mA ground fault (typical threshold for personnel protection) and still handle the leakage from a large motor drive or heater bank. The full-scale value is adjustable to 1.1 times the set range, giving a 10 % over-range headroom. The output contacts are rated 3 A at 250 V AC (50/60 Hz) and 0.1 A at 250 V DC — adequate for signaling a PLC input or dropping out a contactor coil, but not for direct motor switching. The relay offers delayed switching (2 seconds) to ride through nuisance trips from capacitive inrush, and includes an error memory and external reset input, so a remote PLC can clear latched faults without a panel visit. Housed in a 22.5 mm wide enclosure (103 mm high, 91 mm deep), it snaps onto a standard 35 mm DIN rail with a screw-and-snap-on mechanism. The terminals accept 2x (24 … 16) AWG solid or stranded wire — spring-cage or screw terminals (the spec lists both solid and stranded ranges).","metaTitle":"Siemens 3UG4625-2CW30 SIRIUS Residual Current Monitoring Rel","metaDescription":"Siemens 3UG4625-2CW30 SIRIUS residual current monitoring relay for three-phase supplies. Measures 30 mA to 40 A, rated 24–240 V AC/DC, IP20. Current lifecycle stage. Sourced to ord","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Process / Temperature Controllers"],"specifications":{"1":"30 mA ... 40 A","2":"30 mA ... 40 A","Depth":"91 mm","Solid":"24 ... 16","Width":"22.5 mm","Height":"103 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","At The Side":"0 mm","Rated Value":"24 ... 240 V","Error Memory":"Yes","Initial Value":"0.85","During Storage":"-40 ... +85 °C","External Reset":"Yes","Of The Terminal":"IP20","Type Of Voltage":"AC/DC","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-40 ... +85 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail","Full-Scale Value":"1.1","Of The Enclosure":"IP20","Product Function":"for three-phase supplies","Delayed Switching":"2","Mounting Position":"any","Measurable Current":"10 mA ... 43 A","Product Brand Name":"SIRIUS","Between The Outputs":"Yes","Degree Of Pollution":"3","Product Designation":"Residual current monitoring relay with digital setting","at AWG cables solid":"2x (24 ... 16)","protection class IP":"IP20","at 250 V at 50/60 Hz":"3 A","at 400 V at 50/60 Hz":"0 A","at 50 Hz rated value":"24 ... 240 V","at 60 Hz rated value":"24 ... 240 V","Design Of The Display":"LCD","For Auxiliary Contacts":"2","at AWG cables stranded":"2x (24 ... 16)","Between Input And Output":"Yes","Relative Repeat Accuracy":"1 %","Residual Current Display":"Yes","Measurable Line Frequency":"16 ... 400 Hz","temperature drift per °C":"0.1 %/°C","Accuracy Of Digital Display":"+/-1 digit","Relative Metering Precision":"5 %","Operating Voltage Rated Value":"24 ... 240 V","Overcurrent Detection 1 Phase":"Yes","Substance Prohibitance (Date)":"02/14/2013","Type Of Electrical Connection":"spring-loaded terminals","Adjustable Response Delay Time":"0 ... 20 s","Type Of Current For Monitoring":"AC","Undercurrent Detection 1 Phase":"No","Adjustable Operating Delay Time":"0.1 ... 20 s","Operating Frequency Rated Value":"16 ... 400 Hz","Design Of The Electrical Isolation":"galvanic isolation","operational current at 17 V minimum":"5 mA","Surge Voltage Resistance Rated Value":"4 kV","With Degree Of Pollution 3 Rated Value":"300 V","due to burst according to IEC 61000-4-4":"2 kV","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","Finely Stranded Without Core End Processing":"0.25 ... 1.5 mm²","Adjustable Response Delay Time When Starting":"0.1 ... 20 s","number of NC contacts for auxiliary contacts":"0","number of NO contacts for auxiliary contacts":"0","shock resistance according to IEC 60068-2-27":"sinusoidal half-wave 15g / 11 ms","Between The Voltage Supply And Other Circuits":"No","Type Of Voltage Of The Control Supply Voltage":"AC/DC","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","electrostatic discharge according to IEC 61000-4-2":"4 kV contact discharge / 8 kV air discharge","Buffering Time In The Event Of Power Failure Minimum":"10 ms","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/3UG4625-2CW30/alternatives.json"},"ai":{"faq":[{"question":"What is the measuring range of the 3UG4625-2CW30?","answer":"The rated measuring range is 30 mA to 40 A, with a measurable current span of 10 mA to 43 A. This covers both sensitive ground-fault detection and higher industrial leakage currents."},{"question":"What supply voltage does the relay need?","answer":"It accepts 24 to 240 V AC/DC, so it works on common control voltages from 24 VDC panels up to 240 VAC line-powered controls without an external power supply."},{"question":"What compliance documentation is available for this part?","answer":"The evidence does not list specific approvals (UL, CSA, CE, UKCA). As a current-production Siemens SIRIUS device, it is typically CE-marked. Request the manufacturer's declaration of conformity and RoHS/REACH statements with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3UG4625-2CW30","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/3UG4625-2CW30 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}}