{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1122-2KB40-ZW98","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1122-2KB40-ZW98","canonicalUrl":"https://aoctrl.com/siemens/3RH1122-2KB40-ZW98","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1122-2KB40-ZW98","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS coupling relay, size S00, 24 VDC coil, 10 A AC-12 rated, screw and snap-on mounting, with varistor surge suppression.","salesMarkdown":"The Siemens SIRIUS 3RH1122-2KB40-ZW98 is a coupling relay for switching auxiliary circuits, built in the compact S00 contactor footprint. It carries a 24 V DC coil drawing 2.3 W holding power and is rated for AC-12 duty at 10 A, making it a direct fit for control-circuit isolation and signal-level switching inside a panel. The 45 mm width and 60 mm height fit standard S00 contactor spacing; depth is 73 mm. Screw terminals accept 2x (0.25... 2.5 mm²) solid or stranded wire. The AC-12 10 A rating covers resistive and solid-state loads typical in auxiliary circuits — pilot lights, contactor coils, PLC outputs. DC switching is covered at 24 V (10 A), 110 V (1 A), and 220 V (0.27 A). The built-in varistor surge suppressor handles coil suppression, so no external free-wheel diode is needed for the magnet coil.","metaTitle":"Siemens 3RH1122-2KB40-ZW98 SIRIUS Coupling Relay, 24 VDC, 10","metaDescription":"Siemens SIRIUS 3RH1122-2KB40-ZW98 coupling relay for auxiliary circuits. 24 VDC coil, 10 A AC-12 rated, varistor suppression, S00 size, snap-on DIN mount. Current production. Quote","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","Maximum":"2 000 m","At The Side":"0 mm","Rated Value":"24 V","On The Front":"IP20","Initial Value":"0.7","Mounting type":"screw and snap-on mounting","During Storage":"-55 ... +80 °C","Leading Contact":"0","lifecycle_stage":"current","Auxiliary switch":"No","During Operation":"-25 ... +60 °C","During Transport":"-55 ... +80 °C","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","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","Design of the surge suppressor":"with varistor","Closing power of magnet coil at DC":"2.3 W","Holding power of magnet coil at DC":"2.3 W","Operating current at AC-12 maximum":"10 A","Surge voltage resistance rated value":"6 kV","Reference code acc. to DIN EN 61346-2":"K","Reference code acc. to DIN EN 81346-2":"K","with low demand rate acc. to SN 31920":"40 %","With Degree Of Pollution 3 Rated Value":"690 V","with high demand rate acc. to SN 31920":"75 %","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","at AWG conductors for auxiliary contacts":"2x (24 ... 14)","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"Cage Clamp terminals","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Of Auxiliary Contacts Instantaneous Contact":"0","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","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=279157&mlfb=3RH1122-2KB40-ZW98","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1122-2KB40-ZW98/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to 3RH1122-2KB40-ZW98?","answer":"The 3RH2122-1WB40 is a peer in the same SIRIUS family but uses a different coil voltage and contact configuration — verify the coil rating and auxiliary contact count before substituting. A deviation from the customer's AML would need written approval."},{"question":"Where can I buy 3RH1122-2KB40-ZW98?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1122-2KB40-ZW98","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/3RH1122-2KB40-ZW98 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}}