{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1122-1BB40-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1122-1BB40-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RH1122-1BB40-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1BB40-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, size S00, 24 VDC coil, 2 NO + 2 NC contacts, AC-12 rated 10 A, screw and snap-on mounting, IP20 front.","salesMarkdown":"It carries 2 normally-open and 2 normally-closed instantaneous contacts, rated for AC-12 duty at 10 A, meaning it's designed for switching resistive loads like relay coils, PLC inputs, and signal lamps inside a control panel. The coil is 24 VDC with a holding power draw of 3.2 W — the same as its inrush closing power, so there's no drop in consumption after pickup. That steady draw simplifies DC-supply budgeting on a 24 V bus. Mounting is screw-and-snap-on, so it clips onto the rail without tools and can be removed with a screwdriver for service. Zero side clearance is required — the part can be butted directly against adjacent devices on the rail. ## Switching capacity by voltage At 24 V the contacts handle 10 A; at 110 V it drops to 1 A; at 230 V it's 6 A; at 400 V it's 3 A; at 500 V it's 2 A; and at 690 V it's 1 A. The 230 V figure (6 A) is higher than the 110 V figure (1 A) because the ratings follow the AC-12 utilization category curve, not a simple inverse-voltage rule.","metaTitle":"Siemens 3RH1122-1BB40-ZX95 SIRIUS Auxiliary Contactor, 24 VD","metaDescription":"Siemens SIRIUS 3RH1122-1BB40-ZX95 auxiliary contactor, size S00, 24 VDC coil, 2 NO + 2 NC, AC-12 10 A, IP20, DIN rail mount. Current production. Quoted to order.","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","Maximum":"2 000 m","At The Side":"0 mm","Rated Value":"24 V","On The Front":"IP20","Initial Value":"0.8","Mounting type":"screw and snap-on mounting","During Storage":"-55 ... +80 °C","Leading Contact":"0","lifecycle_stage":"current","Auxiliary switch":"Yes","During Operation":"-25 ... +60 °C","During Transport":"-55 ... +80 °C","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","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","Closing power of magnet coil at DC":"3.2 W","Holding power of magnet coil at DC":"3.2 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 (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","at AWG conductors for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"screw-type terminals","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","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","Of The Contactor With Added Electronics-Compatible Auxiliary Switch Block Typical":"5 000 000"}},"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=213226&mlfb=3RH1122-1BB40-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1BB40-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to 3RH1122-1BB40-ZX95?","answer":"The 3RH2122-1BA40 is a sibling from the same SIRIUS family but in the larger S2 frame. The 3RH1122-1BB40-ZX95 is the S00-frame version, which is physically smaller (45 mm wide vs the S2's wider footprint) and has a 24 VDC coil versus the 1BA40's 24 VAC coil. If your panel was laid out for an S00 contactor, the S2 won't fit without drilling new mounting holes."},{"question":"Where can I buy 3RH1122-1BB40-ZX95 and how is it quoted?","answer":"We source and quote this part to order against an RFQ. Send the order code and your target quantity; availability and current pricing are confirmed at quote time through our independent distribution network."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1122-1BB40-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/3RH1122-1BB40-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}}