{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB3046-1UX1","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB3046-1UX1","canonicalUrl":"https://aoctrl.com/siemens/3RB3046-1UX1","factsUrl":"https://aoctrl.com/api/mcp/products/3RB3046-1UX1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS solid-state overload relay, size S3, 3RB3046-1UX1, 50 A rated current, Trip Class 10E, electronic overload release, stand-alone installation.","salesMarkdown":"The Siemens 3RB3046-1UX1 is a SIRIUS solid-state overload relay in the S3 frame size, rated for 50 A continuous thermal current (Ith) and 50 A at both 480 V and 600 V. The relay is designed for stand-alone installation, not a motor-starter combo block, so you'll mount it separately on the DIN rail and wire the main current circuit through its straight-through transformers. The S3 footprint is 70 mm wide × 106 mm tall × 124 mm deep — that's a standard 4-module-wide DIN-rail footprint, so it'll fit a typical 600 mm enclosure backpanel without crowding the gland plate. The screw terminals accept 2× (0.25…1.5 mm²) solid or stranded, and the screwdriver spec is Pozidriv PZ2 with a 5–6 mm shaft diameter — keep that bit on the cart; PZ2 is less common in US panels than Phillips #2. The integrated auxiliary switch (97/98) signals the tripped state — the note on the part is literally for message \"tripped\". That contact is rated 2 A at 24 V, 4 A at 120 V, 3 A at 230 V, so it can drive a PLC input or a small pilot light directly. Shock resistance is 8g / 11 ms for the signaling contact in the tripped position, 15g / 11 ms for the main body per IEC 60068-2-27; vibration per 1–6 Hz at 15 mm amplitude, 6–500 Hz at 20 m/s² for 10 cycles. That's robust enough for most industrial machinery but not for a shaker table or a mobile application.","metaTitle":"Siemens 3RB3046-1UX1 SIRIUS solid-state overload relay, S3,","metaDescription":"Siemens 3RB3046-1UX1 SIRIUS solid-state overload relay, size S3, 50 A rated current, Trip Class 10E, electronic release. Currently in production. Available to order — request quote","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Overload Relays"],"specifications":{"Note":"for message \"tripped\"","Depth":"124 mm","Solid":"2x (0.25 ... 1.5 mm²)","Width":"70 mm","title":"3RB3046-1UX1","Height":"106 mm","at 24 V":"2 A","at 60 V":"0.55 A","Per Pole":"0.07 W","at 110 V":"0.3 A","at 120 V":"4 A","at 125 V":"0.3 A","at 220 V":"0.11 A","at 230 V":"3 A","Trip Class":"CLASS 10E","Rated Value":"1 000 V","description":"Overload relay 12.5...50 A Electronic For motor protection Size S3, Class 10E Stand-alone installation Main circuit: Straight-through transformer Auxiliary circuit: Spring-type terminal Manual-Automatic-Reset","During Storage":"-40 ... +80 °C","Thermal Current":"50 A","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-40 ... +80 °C","Fastening Method":"stand-alone installation","Shock Resistance":"8g / 11 ms","Mounting Position":"any","Solid Or Stranded":"2x (0,25 ... 1,5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"solid-state overload relay","Vibration Resistance":"1-6 Hz, 15 mm; 6-500 Hz, 20 m/s²; 10 cycles","at 480 V rated value":"50 A","at 600 V rated value":"50 A","Size Of Overload Relay":"S3","For Main Current Circuit":"straight-through transformers","Temperature Compensation":"-25 ... +60 °C","Design Of Screwdriver Shaft":"Diameter 5 to 6 mm","Size Of The Screwdriver Tip":"Pozidriv PZ 2","according to IEC 60068-2-27":"15g / 11 ms; Signaling contact 97 / 98 in position \"Tripped\": 8g / 11 ms","at AC-3e rated value maximum":"1 000 V","Substance Prohibitance (Date)":"03/01/2017","Design Of The Auxiliary Switch":"integrated","Design Of The Overload Release":"electronic","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"50 A","for AC motors at 500 V at 50 Hz":"11 ... 30 kW","for AC motors at 690 V at 50 Hz":"11 ... 45 kW","For Auxiliary And Control Circuit":"spring-loaded terminals","Between Main And Auxiliary Circuit":"690 V","Relative Humidity During Operation":"10 ... 95 %","With Type Of Assignment 2 Required":"gG: 200 A","Display Version For Switching Status":"Slide switch","Surge Voltage Resistance Rated Value":"8 kV","With Type Of Coordination 1 Required":"gG: 200 A","at AWG cables for auxiliary contacts":"2x (24 ... 16)","for 3-phase motors at 400 V at 50 Hz":"7.5 ... 22 kW","Between Auxiliary And Auxiliary Circuit":"300 V","due to burst according to IEC 61000-4-4":"2 kV (power ports), 1 kV (signal ports) corresponds to degree of severity 3","reference code according to IEC 81346-2":"F","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","Finely Stranded Without Core End Processing":"2x (0.25 ... 1.5 mm²)","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","operational current at AC-3e at 400 V rated value":"50 A","Size Of Contactor Can Be Combined Company-Specific":"S3","electrostatic discharge according to IEC 61000-4-2":"6 kV contact discharge / 8 kV air discharge","Type Of Voltage Supply Via Input/Output Link Master":"No","contact rating of auxiliary contacts according to UL":"B600 / R300","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Arrangement Of Electrical Connectors For Main Current Circuit":"Top and bottom","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gG: 6 A","insulation voltage with degree of pollution 3 at AC rated value":"1 000 V","Product Component Removable Terminal For Auxiliary And Control Circuit":"Yes","power loss [W] for rated value of the current at AC in hot operating state":"0.2 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"12.5 ... 50 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/68e8615c7f4487474599c1c26981bc93.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629733&mlfb=3RB3046-1UX1"},"ai":{"faq":[{"question":"Where can I buy the 3RB3046-1UX1 and get a price?","answer":"This part is sourced and quoted to order through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time."},{"question":"What does the note \"for message tripped\" mean on this relay?","answer":"The integrated auxiliary switch (terminals 97/98) is labeled for signaling the tripped state — it closes when the overload relay trips, providing a dry contact for a PLC input or alarm light."},{"question":"What compliance documentation does Siemens provide for this part?","answer":"The part meets RoHS with a substance prohibition date of March 1, 2017. It is designed per IEC 60068-2-27 for shock and IEC 60068-2-27 for vibration. Operating temperature range is -25 to +60 °C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB3046-1UX1","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/3RB3046-1UX1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}