{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2131-1XB40-0LA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2131-1XB40-0LA2","canonicalUrl":"https://aoctrl.com/siemens/3RH2131-1XB40-0LA2","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2131-1XB40-0LA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS contactor relay, Size S00, 3 instantaneous NO contacts, 24-34 VDC coil with integrated varistor, screw and snap-on mounting for 35 mm DIN rail, 73 mm depth, 45 mm width.","salesMarkdown":"The S00 footprint measures 73 mm deep, 45 mm wide, and 58 mm tall — a compact envelope that leaves room for auxiliary contact blocks on the side. Side-by-side mounting is permitted with zero gap, and the mounting position is flexible: ±180° rotation on a vertical surface, ±22.5° tilt forward/backward, or horizontal standing. Clearance distances to adjacent metalwork: 10 mm upwards, 10 mm forwards, 10 mm downwards, and 6 mm to the side. Wire terminals accept 2× (0.5 to 1.5 mm²), 2× (0.75 to 2.5 mm²), or 2× 4 mm² solid or stranded conductors. Operating temperature range spans -40 to +70 °C, with storage from -55 to +80 °C. The part complies with RoHS substance prohibitions effective October 1, 2009.","metaTitle":"Siemens 3RH2131-1XB40-0LA2 SIRIUS Contactor Relay, Railway,","metaDescription":"Siemens SIRIUS 3RH2131-1XB40-0LA2 contactor relay for railway applications. Size S00, 3 NO contacts, 24-34 VDC coil with varistor. 73 mm depth, 45 mm width. Active production, sour","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"73 mm","Width":"45 mm","at DC":"25 ... 45 ms","Height":"58 mm","Upwards":"10 mm","Forwards":"10 mm","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"6 mm","Rated Value":"24 ... 34 V","Initial Value":"0.7","During Storage":"-55 ... +80 °C","lifecycle_stage":"current","During Operation":"-40 ... +70 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail","Full-Scale Value":"1.25","Mounting Position":"+/-180° rotation possible on vertical mounting surface, can be tilted forward and backward by +/- 22.5° on vertical mounting surface, standing, on horizontal mounting surface","Size Of Contactor":"S00","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","Product Brand Name":"SIRIUS","Product Designation":"Contactor relay for railway applications","at 24 V rated value":"10 A","at 60 V rated value":"4.7 A","Of Contactor Typical":"30 000 000","at 110 V rated value":"3 A","at 220 V rated value":"1.2 A","at 230 V rated value":"10 A","at 400 V rated value":"3 A","at 440 V rated value":"0.5 A","at 500 V rated value":"2 A","at 600 V rated value":"0.26 A","at 690 V rated value":"1 A","Instantaneous Contact":"3","Side-By-Side Mounting":"Yes","Relative Humidity Minimum":"10 %","Substance Prohibitance (Date)":"10/01/2009","Design Of The Surge Suppressor":"Varistor","Product Extension Auxiliary Switch":"Yes","closing power of magnet coil at DC":"4 W","holding power of magnet coil at DC":"0.95 W","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 2x 12","operating frequency at DC-12 maximum":"1 000 1/h","operating frequency at DC-13 maximum":"1 000 1/h","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)","with low demand rate according to SN 31920":"40 %","with high demand rate according to SN 31920":"73 %","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"3","Type Of Voltage Of The Control Supply Voltage":"DC","contact rating of auxiliary contacts according to UL":"A600 / Q600","Identification Number And Letter For Switching Elements":"31 E","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","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","AWG number as coded connectable conductor cross section for auxiliary contacts":"20 ... 12","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","residual current of the electronics for control with signal <0> at DC at 24 V maximum permissible":"10 mA","design of the miniature circuit breaker for short-circuit protection of the auxiliary circuit up to 230 V":"C characteristic: 6 A; 0.4 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d07f6a338c36fb9020432ed04159ed09.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=912129&mlfb=3RH2131-1XB40-0LA2","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH2131-1XB40-0LA2/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RH2131-1XB40-0LA2 and how do I get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a quote request for current pricing and availability — confirmed at quote time, no stock figures listed here."},{"question":"What is 3RH2131-1XB40-0LA2's listed depth on this component line?","answer":"The depth is 73 mm, with a width of 45 mm and height of 58 mm. This S00 footprint fits standard 35 mm DIN-rail panels with the clearance distances specified on the datasheet."},{"question":"What compliance documentation does this brand provide for 3RH2131-1XB40-0LA2?","answer":"The part complies with RoHS substance prohibitions as of October 1, 2009. For full REACH, UL, or IEC declarations, the manufacturer's documentation is available through the authorized channel."},{"question":"Will 3RH2131-1XB40-0LA2 drop into a panel specified around 3RH2122-1BA40 without rewiring?","answer":"Both are S00-frame SIRIUS contactor relays on the same 35 mm DIN-rail footprint, so the mechanical fit and terminal layout are identical. The key difference is the coil voltage: this unit is 24-34 VDC with a varistor, while the 3RH2122-1BA40 uses a different coil rating — verify the control voltage before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2131-1XB40-0LA2","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/3RH2131-1XB40-0LA2 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}}