{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2131-2AN20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2131-2AN20","canonicalUrl":"https://aoctrl.com/siemens/3RH2131-2AN20","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2131-2AN20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RH2131-2AN20 auxiliary contactor, Size S00, 45 mm width, 73 mm depth, 3 NO + 1 NC contacts, screw and snap-on mounting for 35 mm DIN rail.","salesMarkdown":"The 3RH2131-2AN20: That gives the panel builder room to route wiring without fighting the orientation. These are the minimum air gaps to adjacent metalwork or other devices — ignore them and you risk flashover at pollution degree 3 (the industrial environment rating this part carries). ## Switching capacity and endurance Rated operational current is 10 A at both 24 V and 230 V, which covers most control-circuit loads — PLC outputs, relay coils, solenoid valves. The mechanical endurance is 30 million operating cycles, which for a contactor that sees a few cycles per minute in a conveyor or packaging line translates to years of service before the contacts wear. The contact configuration is 3 NO + 1 NC instantaneous contacts. That is a common layout for interlocking two contactors or for signalling back to a PLC that the main power contactor has picked up. Relative humidity minimum is 10 %. The RoHS compliance date is 10 January 2009, meaning the part meets the EU directive for substances of concern. For a maintenance-spares purchaser, this covers the basic documentation requirements: the part carries the expected environmental compliance for industrial control gear.","metaTitle":"Siemens 3RH2131-2AN20 SIRIUS Auxiliary Contactor, Size S00","metaDescription":"Siemens 3RH2131-2AN20 SIRIUS auxiliary contactor, Size S00, 45 mm wide, 30 million mechanical cycles. Active production, available to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"73 mm","Width":"45 mm","at AC":"4 ... 15 ms","at DC":"10 000 1/h","title":"3RH2131-2AN20","Height":"70 mm","Upwards":"10 mm","Forwards":"10 mm","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"6 mm","description":"Contactor relay, 3 NO + 1 NC, 220 V AC, 50 / 60 Hz, Size S00, Spring-type terminal","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","During Storage":"-55 ... +80 °C","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail","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","Solid Or Stranded":"2x (0,5 ... 4 mm²)","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"Auxiliary contactor","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 50 Hz rated value":"220 V","at 500 V rated value":"2 A","at 60 Hz rated value":"220 V","at 600 V rated value":"0.26 A","at 690 V rated value":"1 A","Instantaneous Contact":"3","Relative Humidity Minimum":"10 %","Substance Prohibitance (Date)":"10/01/2009","Product Extension Auxiliary Switch":"Yes","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 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 ... 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 %","Finely Stranded Without Core End Processing":"2x (0.5 ... 2.5 mm²)","apparent holding power of magnet coil at AC":"5.7 VA","apparent pick-up power of magnet coil at AC":"37 VA","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":"AC","contact rating of auxiliary contacts according to UL":"A600 / Q600","Inductive Power Factor With Closing Power Of The Coil":"0.8","Identification Number And Letter For Switching Elements":"31 E","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.25","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","Type Of Electrical Connection For Auxiliary And Control Circuit":"spring-loaded 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","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7b79c9b87c1de3d34db7672fbde29e9a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=426807&mlfb=3RH2131-2AN20"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2131-2AN20","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/3RH2131-2AN20 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}}