{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1140-2AF00-ZW95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1140-2AF00-ZW95","canonicalUrl":"https://aoctrl.com/siemens/3RH1140-2AF00-ZW95","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1140-2AF00-ZW95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, 3RH1140-2AF00-ZW95, 4 NO instantaneous contacts, size S00, 45 mm width, 73 mm depth, IP20 front protection.","salesMarkdown":"The 3RH1140-2AF00-ZW95 is a Siemens SIRIUS auxiliary contactor — four normally-open instantaneous contacts in a size S00 frame. The 4 NO arrangement is typical for signaling multiple circuits — motor-run feedback, status lamps, or interlocking another starter. The 4 NO instantaneous contacts switch without delay or lag — no make-before-break, no timed sequence. That means this contactor is for straight signal replication, not for sequencing two loads with a deliberate overlap. Size S00 is the smallest SIRIUS frame, 45 mm wide and 73 mm deep. It fits the same DIN-rail footprint as the 3RT1 contactors in that frame size, so swapping a main contactor for a different rating doesn't force a panel re-layout if the auxiliary block stays the same size. Contact reliability is specified as one incorrect switching operation per 100 million at 17 V, 1 mA — that's the dry-circuit threshold. If your PLC input card sinks less than 1 mA, the gold-flash contacts on some other blocks may be needed; this one is rated for conventional 24 VDC control signals. IP20 on the front — finger-safe but not washdown-rated. Keep it inside a closed enclosure. Shock resistance of 10g / 5 ms and 5g / 10 ms covers normal panel vibration from contactors and relays cycling nearby. That flexibility helps when routing wires in a tight enclosure — you can orient the terminals toward the wireway.","metaTitle":"Siemens SIRIUS 3RH1140-2AF00-ZW95 Auxiliary Contactor, 4 NO,","metaDescription":"Siemens SIRIUS 3RH1140-2AF00-ZW95 auxiliary contactor, 4 NO instantaneous contacts, size S00, 45 mm width, 73 mm depth, IP20 front. Active 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","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","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","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 50 Hz rated value":"110 V","at 500 V rated value":"2 A","at 60 Hz rated value":"110 V","at 690 V rated value":"1 A","Instantaneous Contact":"4","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","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (24 ... 14)","operational current at AC-12 maximum":"10 A","reference code according to IEC 81346-2":"K","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 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 %","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Of Auxiliary Contacts Instantaneous Contact":"0","apparent holding power of magnet coil at AC":"4.6 VA","apparent pick-up power of magnet coil at AC":"27 VA","with high demand rate according to SN 31920":"75 %","number of NC contacts for auxiliary contacts":"0","number of NO contacts for auxiliary contacts":"4","Type Of Voltage Of The Control Supply Voltage":"AC","Inductive Power Factor With Closing Power Of The Coil":"0.8","Identification Number And Letter For Switching Elements":"40 E","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Required Spacing With Side-By-Side Mounting At The Side":"0 mm","Inductive Power Factor With The Holding Power Of The Coil":"0.27","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","Type Of Electrical Connection For Auxiliary And Control Circuit":"Cage Clamp 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=168968&mlfb=3RH1140-2AF00-ZW95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1140-2AF00-ZW95/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source — 3RT1015-1AG61?","answer":"The 3RT1015-1AG61 is a main contactor, not an auxiliary contactor. It carries power contacts for motor loads, whereas the 3RH1140-2AF00-ZW95 has four NO auxiliary contacts for signaling. They share the S00 frame size and DIN-rail mounting, but they are not drop-in substitutes — one switches power, the other switches signals. If you need an auxiliary contactor, stay with the 3RH1140 series."},{"question":"What is the depth of 3RH1140-2AF00-ZW95?","answer":"73 mm depth, 45 mm width, 60 mm height — size S00 frame."},{"question":"What wire size does it accept?","answer":"Solid conductors: 2x (0.25 to 2.5 mm²). That covers most control-circuit wiring in panels."},{"question":"Will it drop into a panel specified around 3RT1015-1AG61 without rewiring?","answer":"Mechanically yes — same S00 footprint, same DIN-rail mounting. Electrically no — the 3RT1015-1AG61 is a main contactor with power poles; the 3RH1140-2AF00-ZW95 is an auxiliary block with four NO signal contacts. The panel wiring for the load circuit would need to be re-terminated onto a main contactor, not this auxiliary block."},{"question":"What compliance documentation does Siemens provide for this part?","answer":"The part carries a substance prohibitance date of 07/01/2006, aligning with RoHS compliance. Surge voltage resistance is rated at 6 kV. Standard Siemens documentation includes a CE declaration and datasheet covering the SIRIUS range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1140-2AF00-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/3RH1140-2AF00-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}}