{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB2046-1ED0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB2046-1ED0","canonicalUrl":"https://aoctrl.com/siemens/3RB2046-1ED0","factsUrl":"https://aoctrl.com/api/mcp/products/3RB2046-1ED0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS solid-state overload relay, 3RB2046-1ED0, CLASS 10E, 3-pole, contactor-mount, ATEX Ex II (2) GD, 8 kV surge, screw-type main terminals, spring-loaded auxiliary terminals.","salesMarkdown":"## Solid-state overload relay for contactor-mount integration Its 3-pole configuration and screw-type main terminals with spring-loaded auxiliary terminals make it a direct fit for panel layouts where a contactor and overload relay share a common rail — no separate base or DIN-rail adapter needed. The ATEX Ex II (2) GD certification qualifies it for explosive-gas and dust atmospheres where a thermal bimetal relay might not be permitted. ## Trip class and protection envelope The 8 kV surge voltage resistance and EMC burst immunity of 2 kV on power ports and 1 kV on signal ports, severity degree 3, cover the relay against switching transients in industrial control panels. Mounting position is any, but the fastening method is contactor mounting — it clips directly onto the contactor's front face, not onto a DIN rail. Main circuit accepts stranded conductors 2x (10 … 50 mm²) or single 10 … 70 mm², with AWG equivalents 2x (10 … 1/0) or 1x (10 … 2/0). Auxiliary and control circuit uses spring-loaded terminals accepting 2x (0.25 … 1.5 mm²) solid or finely stranded with ferrule, AWG 2x (24 … 16).","metaTitle":"Siemens 3RB2046-1ED0 SIRIUS Solid-State Overload Relay, CLAS","metaDescription":"Siemens 3RB2046-1ED0 SIRIUS solid-state overload relay, CLASS 10E, 3-pole, contactor-mount, ATEX Ex II (2) GD, 8 kV surge. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"Depth":"124 mm","Solid":"2x (0.25 ... 1.5 mm²)","Width":"70 mm","Height":"106 mm","Upwards":"0 mm","at 24 V":"2 A","at 60 V":"0.55 A","Forwards":"0 mm","Per Pole":"0.02 W","Stranded":"2x (10 ... 50 mm²), 10 ... 70 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","Backwards":"0 mm","Downwards":"0 mm","Trip Class":"CLASS 10E","At The Side":"6 mm","During Storage":"-40 ... +80 °C","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-40 ... +80 °C","Fastening Method":"Contactor mounting","Shock Resistance":"15g / 11 ms","Mounting Position":"any","Product Brand Name":"SIRIUS","Type Of Protection":"PTB 06 ATEX 3001 Ex II (2) GD","Product Designation":"solid-state overload relay","For Main Current Circuit":"screw-type terminals","Substance Prohibitance (Date)":"07/01/2006","at AWG cables for main contacts":"2x (10 ... 1/0), 1x (10 ... 2/0)","For Auxiliary And Control Circuit":"spring-loaded terminals","Relative Humidity During Operation":"100 %","Surge Voltage Resistance Rated Value":"8 kV","at AWG cables for auxiliary contacts":"2x (24 ... 16)","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","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","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","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/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":"0.05 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"25 ... 100 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=284973&mlfb=3RB2046-1ED0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB2046-1ED0/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does the 3RB2046-1ED0 carry?","answer":"The relay carries ATEX certification PTB 06 ATEX 3001 Ex II (2) GD for explosive gas and dust atmospheres. It also has a substance prohibitance date of 07/01/2006, indicating RoHS compliance for that cutoff. EMC immunity is documented per IEC 61000-4-4 burst at severity degree 3."},{"question":"Where can I buy the 3RB2046-1ED0 and how is it quoted?","answer":"The 3RB2046-1ED0 is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock or price figures are published here."},{"question":"What is the 3RB2046-1ED0's depth dimension?","answer":"The listed depth is 124 mm. Width is 70 mm and height is 106 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB2046-1ED0","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/3RB2046-1ED0 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}}