{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1122-1BB40-0TK1","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1122-1BB40-0TK1","canonicalUrl":"https://aoctrl.com/siemens/3RH1122-1BB40-0TK1","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1BB40-0TK1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, 24 V DC coil, 2 NO instantaneous contacts, 10 A AC-12 rated, S00 size, 45 x 57.5 x 72 mm, screw and snap-on mounting.","salesMarkdown":"The 24 V DC coil pulls 3.2 W on close and holds at 3.2 W, so the control transformer or DC supply needs to deliver that continuously — no spike to design around. Two normally-open instantaneous contacts handle the switching; there are no delayed, leading, or lagging contacts on this variant. Rated 10 A at AC-12 (resistive) and 10 A at 24 V, it's a straightforward signal relay for PLC outputs, pilot lights, or contactor coils downstream. ## Mounting and wiring in the panel Mounts via screw or snap-on to DIN rail — the 45 mm width takes one standard slot. Wire termination accepts 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm² solid — covers most control wiring from signal loops to motor-circuit interlock runs. Depth of 72 mm keeps it clear of shallow enclosures; height of 57.5 mm stacks neatly with S00 contactors like the 3RT10 series. The AC-12 rating of 10 A is the resistive load limit — use that for contactor coils, solenoids, or indicator lamps. For inductive AC loads at higher voltages, the switching capacity drops: 6 A at 230 V, 3 A at 400 V, 2 A at 500 V, 1 A at 690 V. On DC, it's 10 A at 24 V, 1 A at 110 V, and 0.27 A at 220 V — the DC arc extinguishes harder, so stay within those curves. Shock resistance tested at 10g / 5 ms and 5g / 10 ms — fine for conveyor and machine-tool vibration.","metaTitle":"Siemens 3RH1122-1BB40-0TK1 SIRIUS Auxiliary Contactor, 24 V","metaDescription":"Siemens SIRIUS 3RH1122-1BB40-0TK1 auxiliary contactor, 24 V DC coil, 10 A AC-12, 2 NO contacts, S00 size, 45 mm wide. Current lifecycle stage. Sourced to order against RFQ.","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=526683&mlfb=3RH1122-1BB40-0TK1","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1BB40-0TK1/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 3RH1122-1BB40-0TK1?","answer":"72 mm depth, with a width of 45 mm and height of 57.5 mm — fits standard S00 contactor footprint on DIN rail."},{"question":"What wire sizes does 3RH1122-1BB40-0TK1 accept?","answer":"Solid wire: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm² per terminal."},{"question":"Will 3RH1122-1BB40-0TK1 drop into a panel designed for 3RT1015-1BB42?","answer":"Yes, both are S00 size with the same 45 mm width and screw/snap-on mounting — the auxiliary contactor shares the footprint and wiring space of the 3RT10 contactor series."},{"question":"Where can I buy 3RH1122-1BB40-0TK1 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1122-1BB40-0TK1","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/3RH1122-1BB40-0TK1 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}}