{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB3046-2XB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB3046-2XB0","canonicalUrl":"https://aoctrl.com/siemens/3RB3046-2XB0","factsUrl":"https://aoctrl.com/api/mcp/products/3RB3046-2XB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS solid-state overload relay, 3RB3046-2XB0, S3 size, CLASS 20E, 115 A thermal current, screw terminals, contactor mounting.","salesMarkdown":"The Siemens SIRIUS 3RB3046-2XB0 is a solid-state overload relay, S3 size, rated for CLASS 20E trip curve and a thermal current of 115 A. It mounts directly onto a contactor via the screw-type main terminals — no separate panel bracket needed, which saves DIN rail space in a crowded enclosure. The integrated auxiliary switch reports a \"tripped\" status signal, so the PLC or HMI knows exactly when the relay has locked out. CLASS 20E means the relay allows up to 20 seconds of overload before tripping at 7.2× the current setting — that's the standard for medium-starting loads like compressors or conveyors. The 115 A thermal current (at 480 V and 600 V) sets the upper bound for the motor full-load current you can protect; size the relay so the motor FLA falls within the adjustable range of the 3RB30 family. The auxiliary contact ratings cover common control voltages: 2 A at 24 V DC, 4 A at 120 V AC, 3 A at 230 V AC — enough to drive a PLC input or a small contactor coil directly. Fastening method is contactor mounting — the relay bolts onto the contactor's main terminals using M6 screws (screwdriver tip Pozidriv PZ2). Main circuit wiring accepts solid or stranded up to 2× 16 mm² per pole. The auxiliary switch is integrated, so there's no separate add-on block to order. Dimensions: 70 mm wide, 106 mm high, 124 mm deep — fits standard S3 contactor footprints.","metaTitle":"Siemens SIRIUS 3RB3046-2XB0 solid-state overload relay, CLAS","metaDescription":"Siemens SIRIUS 3RB3046-2XB0 solid-state overload relay, CLASS 20E, 115 A thermal current, S3 size. Current production. Quoted 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":"1x (0.5 ... 4 mm²), 2x (0.5 ... 2.5 mm²)","Width":"70 mm","title":"3RB3046-2XB0","Height":"106 mm","at 24 V":"2 A","at 60 V":"0.55 A","Per Pole":"1.53 W","Stranded":"2x 16 mm²","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","description":"Overload relay 32...115 A Electronic For motor protection Size S3, Class 20E Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset","During Storage":"-40 ... +80 °C","Thermal Current":"115 A","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-40 ... +80 °C","Fastening Method":"Contactor mounting","Shock Resistance":"8g / 11 ms","For Main Contacts":"M6","Mounting Position":"any","Solid Or Stranded":"1x (0,5 ... 4 mm²), 2x (0,5 ... 2,5 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":"screw-type terminals","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":"screw-type 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","Of The Auxiliary And Control Contacts":"M3","for AWG cables for auxiliary contacts":"2x (20 ... 14)","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":"1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","For Main Contacts With Screw-Type Terminals":"4.5 ... 6 N·m","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","For Auxiliary Contacts With Screw-Type Terminals":"0.8 ... 1.2 N·m","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":"4.6 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"32 ... 115 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$140.97","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/39ccf4a284cead0d8de0dca5450166bc.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629742&mlfb=3RB3046-2XB0"},"ai":{"faq":[{"question":"Where can I buy 3RB3046-2XB0?","answer":"We source and quote the 3RB3046-2XB0 to order against an RFQ. Availability and current pricing are confirmed at quote time — send an RFQ for a firm price and lead time."},{"question":"What does the note \"for message 'tripped'\" mean on this relay?","answer":"The integrated auxiliary switch outputs a dedicated \"tripped\" signal — a dry contact that closes when the overload relay locks out, so the control system gets a positive indication of a trip event rather than having to infer it from motor current."},{"question":"What compliance documentation does Siemens provide for 3RB3046-2XB0?","answer":"The part carries a substance prohibition date of 03/01/2017, indicating RoHS compliance. As a SIRIUS product, it also holds the usual Siemens certifications (UL, CSA, CE) for global panel use."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB3046-2XB0","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/3RB3046-2XB0 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}}