{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1122-1AB00-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1122-1AB00-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RH1122-1AB00-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1AB00-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, size S00, order code 3RH1122-1AB00-ZX95, 2 normally open + 2 normally closed instantaneous contacts, screw and snap-on mounting, IP20 front protection.","salesMarkdown":"The Siemens 3RH1122-1AB00-ZX95 is a SIRIUS auxiliary contactor in frame size S00 — the compact 45 mm wide footprint that snaps onto DIN rail or screws directly to a mounting plate. It carries two normally open and two normally closed instantaneous contacts (2 NO + 2 NC), no leading or lagging delay, no make-before-break. That contact complement is the standard choice for signal interlocking, feedback loops, and extending the auxiliary contact count on a main contactor or motor starter without adding a second device. The contact ratings vary by voltage because the load current a set of contacts can safely interrupt drops as voltage climbs. At 24 V the contacts are rated for 10 A — that is the maximum resistive or general-use load at control voltage. At 230 V the rating is 6 A, at 400 V it drops to 3 A, and at 690 V it is 1 A. These are the thermal current ratings (Ith) that govern continuous carry and making/breaking under normal load. The surge voltage resistance is 6 kV, so the contact gap is sized for 400/690 V industrial environments without needing additional suppression on the contacts themselves. ## Mechanical endurance and mounting flexibility Shock resistance is 10g at 5 ms and 5g at 10 ms, which is sufficient for most industrial machinery but not for extreme mobile or naval applications. ## Termination and wire sizing The screw terminals accept solid conductors: 2x 0.5 to 1.5 mm², 2x 0.75 to 2.5 mm², or 2x 4 mm². That covers standard control wiring from 20 AWG up to roughly 12 AWG. The twin-entry allows looping through without a separate terminal block, common in daisy-chained control circuits.","metaTitle":"Siemens 3RH1122-1AB00-ZX95 SIRIUS Auxiliary Contactor, 2 NO","metaDescription":"Siemens 3RH1122-1AB00-ZX95 SIRIUS auxiliary contactor, size S00, 2 NO + 2 NC contacts. Rated 10 A at 24 V, 6 A at 230 V. Screw/snap-on DIN rail mount. IP20 front. Active production","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"72 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","Width":"45 mm","Height":"57.5 mm","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","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","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":"Auxiliary contactor","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 50 Hz rated value":"24 V","at 500 V rated value":"2 A","at 60 Hz rated value":"24 V","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","protection class IP on the front":"IP20","Product Extension Auxiliary Switch":"Yes","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","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)","Touch Protection Against Electrical Shock":"finger-safe","with low demand rate according to SN 31920":"40 %","Of Auxiliary Contacts Instantaneous Contact":"0","apparent holding power of magnet coil at AC":"4.6 VA","apparent pick-up power of magnet coil at AC":"27 VA","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":"AC","Inductive Power Factor With Closing Power Of The Coil":"0.8","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","Inductive Power Factor With The Holding Power Of The Coil":"0.27","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","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"}},"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=20898&mlfb=3RH1122-1AB00-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1AB00-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative — 3RH2422-1AB00?","answer":"The 3RH2422-1AB00 is a physically larger auxiliary contactor (size S2 vs S00) with a 45 mm width but greater depth and higher current ratings. It will not drop into the same footprint without panel modification. The 3RH2122-2AF00 and 3RH2122-2AV00 are the same S00 frame size but carry different contact configurations (e.g., 2 NO + 2 NC with different auxiliary switch variants). For a direct drop-in replacement with the same contact arrangement, stay with the 3RH1122-1AB00 base variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1122-1AB00-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/3RH1122-1AB00-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}}