{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3UG5462-1AA40","brand":"Siemens","brandSlug":"siemens","productSlug":"3UG5462-1AA40","canonicalUrl":"https://aoctrl.com/siemens/3UG5462-1AA40","factsUrl":"https://aoctrl.com/api/mcp/products/3UG5462-1AA40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS DC load monitoring relay, 3UG5462-1AA40, PROFINET IO, -63 … +63 A, 0 … 800 V DC, 45 mm width, screw and snap-on mounting.","salesMarkdown":"The 3UG5462-1AA40: The -63 to +63 A measurable current range covers bidirectional DC loads — motor drives, battery banks, or DC bus monitoring — where current can flow in either direction. The 0 to 800 V adjustable voltage range matches common DC link voltages in industrial drives and solar arrays. The 100 ms response time is fast enough to catch short-duration faults without nuisance tripping on inrush. The auxiliary contact is rated 0.5 A at 125 V AC resistive load up to 40 °C, suitable for signaling to a PLC input or contactor coil. At 24 V DC the contact carries 1 A. The relay consumes a maximum of 3 W, which is low enough to avoid thermal concerns in a crowded DIN-rail cabinet. Galvanic isolation between input and output means the monitoring circuit is electrically separate from the PROFINET communication and auxiliary contacts — important for avoiding ground loops in mixed AC/DC panels. The front face is IP20, terminals are IP00 — standard for inside a control cabinet. Clearance distances: 50 mm above and below, 3 mm at the sides, 0 mm forward and backward. This is tight for side-by-side DIN-rail mounting but allows stacking with minimal gap. EMC compliance is per IEC 60947-1 and IEC 61000-6-2 / IEC 61000-6-4, covering industrial immunity and emission limits. The PROFINET IO implementation conforms to Conformance Class A, ensuring interoperability with standard PROFINET controllers.","metaTitle":"Siemens 3UG5462-1AA40 SIRIUS DC Load Monitoring Relay, PROFI","metaDescription":"Siemens SIRIUS 3UG5462-1AA40 DC load monitoring relay with PROFINET IO. Measures -63 to +63 A DC, adjustable voltage 0-800 V. Current lifecycle stage. Sourced to order via authoriz","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Process / Temperature Controllers"],"specifications":{"1":"-63 ... +63 A","Note":"0.5 A 125 V AC, with resistive load up to 40 °C","Depth":"141.6 mm","Solid":"1x (0.5 ... 4 mm²), 2x (0.5 ... 2.5 mm²)","Width":"45 mm","Height":"100 mm","Upwards":"50 mm","at 24 V":"1 A","Forwards":"0 mm","Stranded":"2x (1 ... 16 mm²), 1x (1 ... 16 mm²)","Backwards":"0 mm","Downwards":"50 mm","auto-RESET":"Yes","At The Side":"3 mm","On The Front":"IP20","When Starting":"0 ... 999 s","During Storage":"-40 ... +80 °C","Of The Terminal":"IP00","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-40 ... +80 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail","Product Function":"DC load monitoring relay","Mounting Position":"any","Measurable Current":"-63 ... +63 A","Product Brand Name":"SIRIUS","Product Designation":"DC load monitoring relay","PROFINET IO protocol":"Yes","Design Of The Product":"for PROFINET","Response Time Maximum":"100 ms","power loss [W] maximum":"3 W","Adjustable Voltage Range":"0 ... 800 V","Between Input And Output":"Yes","measurable voltage at DC":"0 ... 800 V","overcurrent detection DC":"Yes","overvoltage detection DC":"Yes","PROFINET conformity class":"A","undercurrent detection DC":"Yes","undervoltage detection DC":"Yes","Electromagnetic Compatibility":"IEC 60947-1 / IEC 61000-6-2 / IEC 61000-6-4","Substance Prohibitance (Date)":"05/31/2019","Type Of Electrical Connection":"screw-type terminals","Type Of Current For Monitoring":"DC","Type Of Voltage For Monitoring":"DC","at AWG cables for main contacts":"1x (18 ... 1), 2x (18 ... 2)","Address Resolution Protocol (ARP)":"Yes","Design Of The Electrical Isolation":"Protective separation","interface design 1 RJ45 (Ethernet)":"Yes","supply voltage 1 at DC rated value":"24 V","With Lower Or Upper Limit Violation":"0 ... 999 s","Number Of Ports At The 1st Interface":"1","Surge Voltage Resistance Rated Value":"8 kV","at AWG cables for auxiliary contacts":"1x (20 ... 12), 2x (20 ... 14)","Between Control And Auxiliary Circuit":"24 V","Type Of Voltage Of The Supply Voltage":"DC","service for open IE communication LLDP":"Yes","Between Auxiliary And Auxiliary Circuit":"24 V","due to burst according to IEC 61000-4-4":"2 kV","reference code according to IEC 81346-2":"K","Finely Stranded With Core End Processing":"2x (0,5 ... 1,5 mm²), 1x (0,5 ... 4 mm²)","network load class according to PROFINET":"1","transmission mode for Industrial Ethernet":"PROFINET with 100 Mbps full duplex (100BASE-TX)","number of interfaces according to PROFINET":"1","For Main Contacts With Screw-Type Terminals":"3 ... 4.5 N·m","Internal Resistance Of The Measuring Circuit":"10 mΩ","number of CO contacts for auxiliary contacts":"1","shock resistance according to IEC 60068-2-27":"sinusoidal half-wave 15g / 11 ms","Between The Voltage Supply And Other Circuits":"Yes","design of the interface Fast Ethernet interface":"Yes","vibration resistance according to IEC 60068-2-6":"1 ... 6 Hz: 15 mm, 6 ... 500 Hz: 2g","For Auxiliary Contacts With Screw-Type Terminals":"0.6 ... 0.8 N·m","Mechanical Service Life (Operating Cycles) Typical":"10 000 000","Relative Temperature-Related Measurement Deviation":"0.5 %","electrostatic discharge according to IEC 61000-4-2":"6 kV contact discharge / 8 kV air discharge","Product Component Removable Terminal For Main Circuit":"No","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","operating range factor supply voltage rated value at DC":"0.85 ... 1.15","product function at the 1st interface PROFINET IO device":"Yes","product function at the Ethernet interface Autocrossover":"Yes","Ampacity For Overcurrent Duration < 1 S Maximum Permissible":"1 A","Thermal Current Of The Switching Element With Contacts Maximum":"1 A","continuous current of the DIAZED fuse link of the output relay":"2 A","Electrical Endurance (Operating Cycles) For Relay Outputs Maximum":"100 000","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/3UG5462-1AA40/alternatives.json"},"ai":{"faq":[{"question":"What is the measurable current range of the 3UG5462-1AA40?","answer":"It measures DC currents from -63 to +63 A, covering bidirectional flow. The adjustable voltage range is 0 to 800 V DC."},{"question":"What is the auxiliary contact rating?","answer":"The auxiliary contact is rated 0.5 A at 125 V AC resistive load up to 40 °C, and 1 A at 24 V DC."},{"question":"Does the 3UG5462-1AA40 support PROFINET?","answer":"Yes, it has PROFINET IO protocol with Conformance Class A, suitable for integration into standard PROFINET networks."},{"question":"What compliance documentation is available for this relay?","answer":"The relay complies with IEC 60947-1 and IEC 61000-6-2 / IEC 61000-6-4 for EMC. Standard Siemens documentation includes RoHS and REACH declarations; specific certificates can be provided upon request through the authorized channel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3UG5462-1AA40","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/3UG5462-1AA40 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}}