{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1131-1KG40-0LA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1131-1KG40-0LA0","canonicalUrl":"https://aoctrl.com/siemens/3RH1131-1KG40-0LA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1131-1KG40-0LA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, size S00, 3 NO instantaneous contacts, 125 V rated value, screw and snap-on mounting, IP20 front.","salesMarkdown":"## Auxiliary contactor for control-circuit switching It carries a rated value of 125 V and delivers 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V — the current drops predictably with voltage, so size the contact for the actual control voltage on your circuit. ## Contact ratings and coil draw The magnet coil draws 11 W on closing and holds at 4 W DC — the holding power is low enough that a 24 VDC supply with modest headroom can keep it sealed continuously. Surge voltage resistance is rated at 6 kV, and a built-in varistor suppresses switching transients across the coil. For typical pilot-duty loads at 24 V and above, mechanical life reaches 30 million operations. ## Environmental and mechanical limits Shock resistance is 10g for 5 ms and 5g for 10 ms, and the mounting position allows +/-180° rotation on a vertical surface plus +/-22.5° forward/backward tilt — useful when panel layout forces an unconventional orientation.","metaTitle":"Siemens 3RH1131-1KG40-0LA0 SIRIUS Auxiliary Contactor, 3 NO,","metaDescription":"Siemens SIRIUS 3RH1131-1KG40-0LA0 auxiliary contactor, size S00, 3 NO contacts, rated 125 V, 10 A at 24 V. Screw and snap-on mounting, IP20 front. Current production. Sourced to or","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"72 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","Width":"45 mm","Height":"57.5 mm","Rated Value":"125 V","Initial Value":"0.7","During Storage":"-55 ... +80 °C","Leading Contact":"0","lifecycle_stage":"current","During Operation":"-40 ... +70 °C","During Transport":"-55 ... +80 °C","Fastening Method":"screw and snap-on mounting","Full-Scale Value":"1.25","Shock Resistance":"10g / 5 ms and 5g / 10 ms","Delayed Switching":"0","Lagging Switching":"0","Mounting Position":"+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface","Size Of Contactor":"S00","Product Brand Name":"SIRIUS","Contact Reliability":"one incorrect switching operation of 100 million switching operations (17 V, 1 mA)","Degree Of Pollution":"3","Product Designation":"Auxiliary contactor","at 24 V rated value":"10 A","Of Contactor Typical":"30 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.27 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 500 V rated value":"2 A","at 690 V rated value":"1 A","Instantaneous Contact":"3","For Auxiliary Contacts":"0","Make-Before-Break Switching":"0","Substance Prohibitance (Date)":"07/01/2006","Design Of The Surge Suppressor":"with varistor","protection class IP on the front":"IP20","Product Extension Auxiliary Switch":"Yes","closing power of magnet coil at DC":"11 W","holding power of magnet coil at DC":"4 W","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","operational current at AC-12 maximum":"10 A","reference code according to IEC 81346-2":"K","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Touch Protection Against Electrical Shock":"finger-safe","with low demand rate according to SN 31920":"40 %","Of Auxiliary Contacts Instantaneous Contact":"0","with high demand rate according to SN 31920":"75 %","number of NC contacts for auxiliary contacts":"0","number of NO contacts for auxiliary contacts":"3","Type Of Voltage Of The Control Supply Voltage":"DC","Identification Number And Letter For Switching Elements":"30 E","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Required Spacing With Side-By-Side Mounting At The Side":"0 mm","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","Type Of Electrical Connection For Auxiliary And Control Circuit":"screw-type terminals","insulation voltage with degree of pollution 3 at AC rated value":"690 V","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000","Design Of The Fuse Link For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 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=355351&mlfb=3RH1131-1KG40-0LA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1131-1KG40-0LA0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for 3RH1131-1KG40-0LA0?","answer":"It is a size S00 auxiliary contactor with 3 NO instantaneous contacts, rated 125 V. Current ratings are 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V. Coil closing power is 11 W DC, holding power 4 W DC."},{"question":"Where can I buy 3RH1131-1KG40-0LA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at the time of quotation."},{"question":"What compliance documentation does Siemens provide for 3RH1131-1KG40-0LA0?","answer":"The part carries a substance prohibition date of 07/01/2006, indicating RoHS compliance. The SIRIUS series typically supports UL, CSA, and CE certifications; verify the specific approvals for your jurisdiction at order time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1131-1KG40-0LA0","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/3RH1131-1KG40-0LA0 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}}