{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1122-1BB40-ZW95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1122-1BB40-ZW95","canonicalUrl":"https://aoctrl.com/siemens/3RH1122-1BB40-ZW95","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1BB40-ZW95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, 3RH1122-1BB40-ZW95, 24 V DC coil, 10 A rated, 2 NO contacts, size S00, screw and snap-on mounting, IP20 front.","salesMarkdown":"Size S00 footprint (45 mm wide, 57.5 mm tall, 72 mm deep) fits standard DIN-rail enclosures, secured by screw or snap-on mounting. The 24 V DC coil draws a constant 3.2 W closing and holding power, so no coil economizer is needed for continuous duty. Rated operational current reaches 10 A at 24 V and derates to 1 A at 690 V — match the voltage to the load's insulation class. Two instantaneous NO contacts switch resistive or lightly inductive loads. Contact reliability is one incorrect switching per 100 million operations at 17 V, 1 mA. Screw terminals accept solid conductors: two wires of 0.5…1.5 mm², two of 0.75…2.5 mm², or a single 4 mm² per clamp. AWG equivalents: 2x (20…16), 2x (18…14), 1x 12.","metaTitle":"Siemens 3RH1122-1BB40-ZW95 SIRIUS Auxiliary Contactor, 24 V","metaDescription":"Siemens 3RH1122-1BB40-ZW95 SIRIUS auxiliary contactor, 24 V DC coil, 10 A rated, 2 NO contacts, IP20, size S00, screw/snap-on mount. Available 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","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","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","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=229223&mlfb=3RH1122-1BB40-ZW95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1122-1BB40-ZW95/alternatives.json"},"ai":{"faq":[{"question":"What is 3RH1122-1BB40-ZW95 used for?","answer":"It is an auxiliary contactor that adds two NO contacts to a control circuit or switches pilot loads independently. Common in motor starter panels, conveyor controls, and safety circuits where extra signal contacts are needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1122-1BB40-ZW95","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-ZW95 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}}