{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB3046-1XD0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB3046-1XD0","canonicalUrl":"https://aoctrl.com/siemens/3RB3046-1XD0","factsUrl":"https://aoctrl.com/api/mcp/products/3RB3046-1XD0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RB3046-1XD0 solid-state overload relay, Size S3, 115 A thermal current, CLASS 10E trip class, screw-type terminals, contactor mounting.","salesMarkdown":"## Trip class and solid-state design — why it matters for motor protection This is the standard for standard-duty motor starting — it allows the motor to accelerate under load without nuisance tripping while still protecting against locked-rotor conditions. As a solid-state overload relay, the 3RB3046-1XD0 has no bimetal strips to drift or age. ## Current rating and voltage ceiling — sizing the relay to the motor The thermal current rating is 115 A continuous, and this holds at both 480 V and 600 V rated values — no derating needed across common industrial voltage levels. The rated insulation voltage is 1,000 V, giving headroom for 690 V systems. Size S3 frame means this relay sits in the middle of the SIRIUS overload relay range, suited for motor full-load currents roughly between 30 A and 115 A depending on the setting range of the specific variant. The screw-type main terminals accept up to 2x 16 mm² stranded wire. ## Auxiliary contact ratings — what the signaling circuit can handle The integrated auxiliary switch provides a 'tripped' signal contact. The power dissipation per pole is 1.53 W at rated current. For a three-phase motor circuit, total heat load inside the enclosure is about 4.6 W — negligible for most panels, but worth noting if the relay is densely packed with other heat sources. Mounts directly onto the contactor via the fastening method — no DIN rail or separate base required. The dimensions are 70 mm wide, 106 mm high, and 124 mm deep, matching the SIRIUS S3 contactor footprint. Any mounting position is permitted. The main circuit terminals use M6 screw-type connections with a Pozidriv PZ2 screwdriver tip. The screwdriver shaft diameter should be 5 to 6 mm for proper torque application. Vibration resistance is tested to 1-6 Hz at 15 mm amplitude, then 6-500 Hz at 20 m/s² for 10 cycles. Shock resistance is 8g for 11 ms on the signaling contact in tripped position, and 15g for 11 ms on the main contact block per IEC 60068-2-27. Storage and transport temperature range is -40 to +80 °C. The substance prohibitance date of 03/01/2017 indicates RoHS compliance was confirmed from that date forward.","metaTitle":"Siemens 3RB3046-1XD0 SIRIUS Solid-State Overload Relay, S3","metaDescription":"Siemens 3RB3046-1XD0 SIRIUS solid-state overload relay, Size S3, 115 A thermal current, CLASS 10E trip. Active 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":"2x (0.25 ... 1.5 mm²)","Width":"70 mm","title":"3RB3046-1XD0","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 10E","Rated Value":"1 000 V","description":"Overload relay 32...115 A Electronic For motor protection Size S3, Class 10E Contactor mounting Main circuit: Screw Auxiliary circuit: Spring-type terminal 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":"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":"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":"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)","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","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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0cfcee53f6f36251d0ad8c22779ffc6d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629735&mlfb=3RB3046-1XD0"},"ai":{"faq":[{"question":"What is the trip class of the 3RB3046-1XD0?","answer":"This suits standard motor starting applications where the acceleration time is under 10 seconds."},{"question":"What does the 'for message tripped' note mean?","answer":"The integrated auxiliary switch provides a signaling contact that changes state when the relay trips. Its ratings are 2 A at 24 V, 4 A at 120 V, and 3 A at 230 V — suitable for driving a PLC input or alarm light."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB3046-1XD0","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/3RB3046-1XD0 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}}