{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB3046-2XX1","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB3046-2XX1","canonicalUrl":"https://aoctrl.com/siemens/3RB3046-2XX1","factsUrl":"https://aoctrl.com/api/mcp/products/3RB3046-2XX1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS solid-state overload relay, Size S3, 3RB3046-2XX1, Class 20E, rated thermal current 115 A, 50-60 Hz.","salesMarkdown":"The Siemens 3RB3046-2XX1 is a SIRIUS solid-state overload relay in Size S3, designed to protect motor circuits against overload and phase imbalance. The electronic overload release replaces the traditional bimetal strip, giving you a Class 20E trip curve — that means it allows a 20-second thermal memory at 600% of the set current before tripping, which is the standard match for standard induction motors starting across the line. It operates on 50-60 Hz supply and mounts in any position — stand-alone installation on a panel or DIN rail. The 115 A thermal current is the continuous current the relay can carry without exceeding its temperature rise. That's the number you match to your motor FLA — not the trip class, not the short-circuit rating. The 1 000 V rated insulation voltage covers 400 V and 690 V systems with headroom. Auxiliary contacts are integrated, rated at various control voltages: 2 A at 24 V, 4 A at 120 V, 3 A at 230 V. The signaling contact (97/98) carries the \"tripped\" message — that's the dry contact that tells your PLC the relay has operated. Shock resistance is 8g / 11 ms for the signaling contact in tripped position, so it holds state under vibration on a conveyor line. Dimensions: 70 mm wide, 106 mm high, 124 mm deep. That's a standard S3 footprint — fits alongside a SIRIUS 3RT contactor of the same frame size. Wire range is 2x 0.25 to 1.5 mm² solid or stranded, terminated with a Pozidriv PZ2 screwdriver. Substance prohibitance date is 03/01/2017, which aligns with the RoHS recast (EU 2015/863) compliance deadline. The part carries the standard SIRIUS documentation package — no special compliance paperwork needed beyond what Siemens publishes for the series.","metaTitle":"Siemens 3RB3046-2XX1 SIRIUS Solid-State Overload Relay, Clas","metaDescription":"Siemens 3RB3046-2XX1 SIRIUS solid-state overload relay, Size S3, Class 20E, rated thermal current 115 A. Current production. Sourced to order against RFQ.","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","Height":"106 mm","at 24 V":"2 A","at 60 V":"0.55 A","Per Pole":"0.2 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 20E","Rated Value":"1 000 V","During Storage":"-40 ... +80 °C","Thermal Current":"115 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":"115 A","at 600 V rated value":"115 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":"115 A","for AC motors at 500 V at 50 Hz":"22 ... 75 kW","for AC motors at 690 V at 50 Hz":"30 ... 90 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: 315 A","Display Version For Switching Status":"Slide switch","Surge Voltage Resistance Rated Value":"8 kV","With Type Of Coordination 1 Required":"gG: 315 A","for 3-phase motors at 400 V at 50 Hz":"18.5 ... 55 kW","for AWG cables for auxiliary contacts":"2x (24 ... 16)","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":"115 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":"0.6 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"32 ... 115 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629745&mlfb=3RB3046-2XX1","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB3046-2XX1/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RB3046-2XX1 and how do I get a price?","answer":"The 3RB3046-2XX1 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is the \"tripped\" message on this relay?","answer":"The \"tripped\" message refers to the signaling contact (terminals 97/98) that changes state when the overload relay operates. It's a dry contact that tells your PLC or indicator light that the relay has tripped on overload or phase loss."},{"question":"What is the depth of the 3RB3046-2XX1?","answer":"The depth is 124 mm. That's the dimension from the mounting surface to the front of the relay — important for enclosure depth clearance when panel-building."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB3046-2XX1","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/3RB3046-2XX1 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}}