{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1122-2JC40-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1122-2JC40-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RH1122-2JC40-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1122-2JC40-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS coupling relay, size S00, 2 NO + 2 NC contacts, rated 10 A at 24 V, 73 mm depth, screw and snap-on mounting, IP20 front, current production.","salesMarkdown":"The Siemens 3RH1122-2JC40-ZX95 is a SIRIUS coupling relay for switching auxiliary circuits, sized S00. The 10 A at 24 V rating tells you this relay handles the control-circuit loads typical in a 24 VDC panel — solenoids, contactor coils, indicator lamps. The 6 kV surge voltage resistance means it withstands the switching transients that appear when you break inductive loads in a mixed-voltage cabinet, so you don't get nuisance failure on the auxiliary contacts. At that level, oxide films on standard contacts can block current; this part is designed to punch through. The solid conductor range is 2x (0.25 to 2.5 mm²), which covers standard control wiring in most panels. The depth of 73 mm and width of 45 mm fit the S00 footprint — common across SIRIUS contactors and relays, so it aligns with existing panel layouts. Fastening is by screw or snap-on mounting. Shock resistance is 10g / 5 ms and 5g / 10 ms, which covers most industrial panel applications including near conveyor drives and compressors. The built-in surge suppressor is a diode, so for DC coils the suppression polarity matters — verify your circuit's free-wheel diode orientation if you're paralleling this with other relay coils on the same DC bus.","metaTitle":"Siemens 3RH1122-2JC40-ZX95 SIRIUS Coupling Relay, 10 A at 24","metaDescription":"Siemens SIRIUS 3RH1122-2JC40-ZX95 coupling relay for switching auxiliary circuits. Rated 10 A at 24 V, 73 mm depth, screw/snap-on mount. Current production. Sourced to order.","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":"30 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":"diode","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=507676&mlfb=3RH1122-2JC40-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1122-2JC40-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to 3RH1122-2JC40-ZX95?","answer":"The 3RH2122-1WB40 is a peer in the same SIRIUS family but uses a different contact configuration (1 NO + 1 NC vs 2 NO + 2 NC) and does not include the built-in diode surge suppressor. Verify your circuit's contact count and coil suppression needs before substituting."},{"question":"What is 3RH1122-2JC40-ZX95's depth?","answer":"The depth is 73 mm, which fits the standard S00 contactor footprint."},{"question":"What wire sizes does 3RH1122-2JC40-ZX95 accept?","answer":"It accepts 2x solid conductors from 0.25 to 2.5 mm², covering standard control wiring."},{"question":"Will 3RH1122-2JC40-ZX95 drop into a panel specified around 3RH2122-1WB40 without rewiring?","answer":"The S00 footprint and DIN-rail mounting are the same, so the mechanical fit is identical. However, the 3RH1122-2JC40-ZX95 has 2 NO + 2 NC contacts versus the 1 NO + 1 NC on the 3RH2122-1WB40, and it includes a built-in diode suppressor. Check your schematic for contact count and coil suppression before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1122-2JC40-ZX95","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/3RH1122-2JC40-ZX95 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}}