{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1122-1BB40-ZW96","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1122-1BB40-ZW96","canonicalUrl":"https://aoctrl.com/siemens/3RH1122-1BB40-ZW96","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1BB40-ZW96","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RH1122-1BB40-ZW96 auxiliary contactor, 24 VDC coil, 10 A AC-12, 2 NO + 2 NC, size S00, IP20, screw and snap-on mounting.","salesMarkdown":"The contact arrangement is 2 normally-open and 2 normally-closed instantaneous contacts, with no leading, lagging, or make-before-break options — a straightforward 2+2 configuration for standard interlocking or status feedback. The 24 VDC coil draws 3.2 W during both pick-up and hold — no inrush spike to stress a DC supply, but the steady-state draw is constant, so budget that wattage in your 24 VDC bus calculation. Switching capacity varies by voltage: at 110 V it's rated 1 A, at 230 V it's 6 A, and at 400 V it drops to 3 A. The 10 A AC-12 rating is the maximum at 24 V rated value — for higher voltages the contacts derate significantly, so verify against your actual load voltage, not just the coil voltage. Contact reliability is specified as one incorrect switching operation per 100 million at 17 V, 1 mA — this is a dry-circuit rating, meaning the contacts are reliable even at low signal levels without needing a minimum wetting current. Depth is 72 mm, which includes the coil terminals — account for that when spacing the panel door or adjacent components. Terminals accept solid conductors: 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or 2x 4 mm². That covers most control wiring sizes; for 4 mm² you'll need a ferrule or direct insertion. The screw-clamp design is standard for the SIRIUS family.","metaTitle":"Siemens 3RH1122-1BB40-ZW96 SIRIUS Auxiliary Contactor, 24 VD","metaDescription":"Siemens SIRIUS 3RH1122-1BB40-ZW96 auxiliary contactor, 24 VDC coil, 10 A AC-12 rated, 2 NO + 2 NC contacts, size S00, IP20, screw/snap-on mounting. 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","Rated Value":"24 V","Initial Value":"0.8","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":"1.1","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 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","protection class IP on the front":"IP20","Product Extension Auxiliary Switch":"Yes","closing power of magnet coil at DC":"3.2 W","holding power of magnet coil at DC":"3.2 W","Surge Voltage Resistance Rated Value":"6 kV","operational current at AC-12 maximum":"10 A","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","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","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","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=247136&mlfb=3RH1122-1BB40-ZW96","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1BB40-ZW96/alternatives.json"},"ai":{"faq":[{"question":"What is the contact configuration?","answer":"It has 2 normally-open and 2 normally-closed instantaneous contacts. There are no leading, lagging, or make-before-break options."},{"question":"What wire sizes does it accept?","answer":"The terminals accept solid conductors: 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or 2x 4 mm²."},{"question":"What is the coil power consumption?","answer":"The DC coil draws 3.2 W during both closing and holding — no inrush peak, but a constant 3.2 W load on the 24 VDC supply."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1122-1BB40-ZW96","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/3RH1122-1BB40-ZW96 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}}