{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1140-2BB40-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1140-2BB40-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RH1140-2BB40-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1140-2BB40-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, 3RH1140-2BB40-ZX95, 24 VDC coil, 4 NO contacts, size S00, screw and snap-on mounting.","salesMarkdown":"It carries 4 normally-open instantaneous contacts and no delayed, leading, or lagging contacts, so it's a straight four-pole make switch for control logic or status indication. The magnet coil is rated 24 V DC with a closing and holding power draw of 3.2 W. That's a continuous-duty coil — it stays energized as long as the control voltage is present, so factor the 3.2 W into your 24 VDC power-supply budget. The contacts are rated 10 A at AC-12, which covers resistive and solid-state loads in control circuits; for inductive switching at higher voltages, derate per the 110 V (1 A), 220 V (0.27 A), 230 V (6 A), 400 V (3 A), 500 V (2 A), and 690 V (1 A) values (–). Mounts by screw or snap-on onto a DIN rail. The size S00 footprint — 45 mm wide, 60 mm high, 73 mm deep — fits standard control-panel layouts. No side clearance is required (: 0 mm at the side), so you can pack units tight on the rail. The shock resistance is 10g / 5 ms and 5g / 10 ms, which is typical for industrial panel gear — no special isolation needed for normal machine vibration.","metaTitle":"Siemens 3RH1140-2BB40-ZX95 SIRIUS Auxiliary Contactor, 24 VD","metaDescription":"Siemens SIRIUS 3RH1140-2BB40-ZX95 auxiliary contactor, 24 VDC coil, 4 NO contacts, 10 A rated. Screw/snap-on mount, size S00. Current production. RFQ for lead time.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"73 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"45 mm","Height":"60 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":"4","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 (0.25 ... 1.5 mm²)","at AWG conductors for auxiliary contacts":"2x (24 ... 14)","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"Cage Clamp terminals","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Of Auxiliary Contacts Instantaneous Contact":"0","Number of NC contacts for auxiliary contacts":"0","Number of NO contacts for auxiliary contacts":"4","Type of voltage of the control supply voltage":"DC","Identification number and letter for switching elements":"40 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=121813&mlfb=3RH1140-2BB40-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1140-2BB40-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this auxiliary contactor?","answer":"Coil is 24 V DC, 3.2 W. Contacts: 4 NO, rated 10 A at AC-12. For inductive loads at higher voltages, use the derated values: 1 A at 110 V, 0.27 A at 220 V, 6 A at 230 V, 3 A at 400 V, 2 A at 500 V, 1 A at 690 V (–). Surge voltage resistance is 6 kV."},{"question":"What is the physical size and mounting?","answer":"Size S00: 45 mm wide, 60 mm high, 73 mm deep. Screw or snap-on DIN-rail mount. Zero side clearance needed. Front IP20."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1140-2BB40-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/3RH1140-2BB40-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}}