{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB2113-4SD0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB2113-4SD0","canonicalUrl":"https://aoctrl.com/siemens/3RB2113-4SD0","factsUrl":"https://aoctrl.com/api/mcp/products/3RB2113-4SD0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS solid-state overload relay, 3RB2113-4SD0, ATEX Ex II (2) GD, adjustable trip class 5E/10E/20E/30E, 45 mm width, contactor mounting, screw-type main terminals.","salesMarkdown":"## Solid-State Overload Relay for Hazardous-Area Motor Protection The Siemens SIRIUS 3RB2113-4SD0 is a three-pole solid-state overload relay with ATEX Ex II (2) GD certification (PTB 06 ATEX 3001). It mounts directly to a contactor, saving panel space at 45 mm width. Trip class is field-adjustable among CLASS 5E, 10E, 20E and 30E, letting the same part cover quick-trip motor starts (5E) through heavy-inertia loads (30E) without a hardware swap. ## Switching Ratings and Auxiliary Circuit Auxiliary contact ratings are given per voltage: 2 A at 24 V, 4 A at 120 V, 3 A at 230 V, and lower ratings at 60 V (0.55 A), 110 V (0.3 A), 125 V (0.3 A), and 220 V (0.11 A). These are the maximum switching currents for the internal solid-state output; the relay has no electromechanical auxiliary contacts (number of CO contacts for auxiliary contacts: 0). The control circuit uses spring-loaded terminals (2x 0.25–1.5 mm² solid or 2x 24–16 AWG), while the main circuit uses screw-type terminals (2x 0.25–1.5 mm² solid / 2x 18–14 AWG). ## Environmental and EMC Robustness Surge voltage resistance is rated at 6 kV, and the relay withstands burst transients per IEC 61000-4-4 at 2 kV on power ports and 1 kV on signal ports (severity level 3). Shock resistance is 15g / 11 ms. Storage and transport temperature range is -40 to +80 °C.","metaTitle":"Siemens 3RB2113-4SD0 SIRIUS Solid-State Overload Relay, ATEX","metaDescription":"Siemens SIRIUS 3RB2113-4SD0 solid-state overload relay, ATEX Ex II (2) GD, adjustable trip class 5E/10E/20E/30E, 45 mm wide, contactor mounting. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"Depth":"73 mm","Solid":"2x (0.25 ... 1.5 mm²)","Width":"45 mm","Height":"64 mm","Upwards":"0 mm","at 24 V":"2 A","at 60 V":"0.55 A","Forwards":"0 mm","Per Pole":"0.02 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","Backwards":"0 mm","Downwards":"0 mm","Trip Class":"CLASS 5E, 10E, 20E and 30E adjustable","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 (18 ... 14)","For Auxiliary And Control Circuit":"spring-loaded terminals","Relative Humidity During Operation":"100 %","Surge Voltage Resistance Rated Value":"6 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":"S00","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":"690 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":"3 ... 12 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=17209&mlfb=3RB2113-4SD0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB2113-4SD0/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 3RB2113-4SD0?","answer":"The depth is 73 mm. Width is 45 mm, height is 64 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB2113-4SD0","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/3RB2113-4SD0 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}}