{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1122-2KF80","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1122-2KF80","canonicalUrl":"https://aoctrl.com/siemens/3RH1122-2KF80","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1122-2KF80","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS coupling relay, 3RH1122-2KF80, size S00, rated 100 V, 10 A at 24 V, 6 A at 230 V, screw and snap-on mounting, IP20.","salesMarkdown":"The Siemens 3RH1122-2KF80 is a SIRIUS coupling relay designed for switching auxiliary circuits in control panels — think interposing between a PLC output and a motor contactor coil, or isolating signal circuits. It carries a rated value of 100 V and switches 10 A at 24 V, 6 A at 230 V, and 1 A at 690 V, so it handles both low-voltage DC and higher-voltage AC auxiliary loads without derating surprises. The built-in varistor surge suppressor clips voltage spikes from the coil when it de-energizes — that means less noise coupled into nearby 24 VDC control wiring and longer contact life on the PLC output driving it. Size S00 (45 mm wide, 60 mm tall, 73 mm deep) fits the standard Siemens S00 contactor footprint. Fastening is screw and snap-on mounting. The screw terminals accept 2x 0.25 to 2.5 mm² solid or stranded wire, standard for control wiring. The 10 A at 24 V rating covers most 24 VDC auxiliary loads — PLC output modules, small contactor coils, indicator lamps. At 230 V it still carries 6 A, enough for a bank of contactor coils or a small motor starter pilot circuit. The 1 A at 690 V is useful for isolating higher-voltage control circuits in 400/690 V panels. Shock resistance is 10g/5 ms and 5g/10 ms, fine for industrial panels on machine frames.","metaTitle":"Siemens 3RH1122-2KF80 SIRIUS Coupling Relay, 100 V, 10 A at","metaDescription":"Siemens SIRIUS 3RH1122-2KF80 coupling relay for switching auxiliary circuits. Rated 100 V, 10 A at 24 V, 6 A at 230 V. Size S00, screw/snap-on mount, IP20. Current production. Avai","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"73 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"45 mm","Height":"60 mm","Rated Value":"100 V","Initial Value":"0.7","During Storage":"-55 ... +80 °C","Leading Contact":"0","lifecycle_stage":"current","During Operation":"-25 ... +60 °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":"Coupling relay for switching auxiliary circuits","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":"2","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":"No","closing power of magnet coil at DC":"2.3 W","holding power of magnet coil at DC":"2.3 W","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (24 ... 14)","operational current at AC-12 maximum":"10 A","reference code according to IEC 81346-2":"K","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 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 %","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Of Auxiliary Contacts Instantaneous Contact":"0","with high demand rate according to SN 31920":"75 %","number of NC contacts for auxiliary contacts":"2","number of NO contacts for auxiliary contacts":"2","Type Of Voltage Of The Control Supply Voltage":"DC","Identification Number And Letter For Switching Elements":"22 E","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Required Spacing With Side-By-Side Mounting At The Side":"0 mm","Type Of Electrical Connection For Auxiliary And Control Circuit":"Cage Clamp terminals","insulation voltage with degree of pollution 3 at AC rated value":"690 V","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=296376&mlfb=3RH1122-2KF80","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1122-2KF80/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 3RH1122-2KF80?","answer":"73 mm. Width is 45 mm, height is 60 mm — size S00 footprint."},{"question":"What wire size does the terminal accept?","answer":"2x 0.25 to 2.5 mm² solid or stranded. Screw terminals, no ferrule required."},{"question":"What compliance documentation does this part have?","answer":"Substance prohibitance date is 07/01/2006, which aligns with RoHS compliance. The SIRIUS series carries CE marking and UL/CSA listings per standard Siemens documentation — request the specific declaration with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1122-2KF80","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/3RH1122-2KF80 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}}