{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH7140-1AQ00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH7140-1AQ00","canonicalUrl":"https://aoctrl.com/siemens/3RH7140-1AQ00","factsUrl":"https://aoctrl.com/api/mcp/products/3RH7140-1AQ00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RH7140-1AQ00 contactor relay, Size S00, 4 NO auxiliary contacts (40 E), AC coil, 45 mm width, screw terminals, DIN-rail snap-on.","salesMarkdown":"## Size S00 frame — 45 mm wide, 4 NO contacts The 3RH7140-1AQ00 is a Size S00 contactor relay from the Siemens SIRUS line, meaning it occupies a 45 mm-wide DIN-rail footprint (72 mm deep, 57.5 mm tall) and carries four normally-open auxiliary contacts — the switching-element designation is 40 E. The front face carries an IP20 protection class — suitable for enclosed panel use where accidental finger contact is the only exposure; no washdown or outdoor rating. Contact reliability is specified for PLC control at 17 V, 5 mA — the contacts are designed to switch dry logic-level signals without the oxide-film issues that plague standard power contacts at low voltage/current. ## Coil data and insulation coordination The AC magnet coil draws 27 VA apparent pick-up power and 5.4 VA holding power at a power factor of 0.8 (pick-up) and 0.27 (holding) — the holding power is roughly one-fifth the pick-up, so the coil runs cool after the armature seals. Operating frequency at DC-13 (solenoid load) is 1,000 operations per hour maximum — above that, the contact temperature rise limits the switching rate.","metaTitle":"Siemens 3RH7140-1AQ00 Contactor Relay, Size S00, 4 NO, 45 mm","metaDescription":"Siemens 3RH7140-1AQ00 SIRIUS contactor relay, Size S00, 4 NO auxiliary contacts, 45 mm wide, AC coil. Active production — sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"72 mm","Width":"45 mm","title":"3RH7140-1AQ00","Height":"57.5 mm","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","description":"Contactor relay 4NO AC 380V 50/60Hz size S00, screw terminal","During Storage":"-25 ... +70 °C","lifecycle_stage":"current","During Operation":"-10 ... +55 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail","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","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","Product Brand Name":"SIRIUS","Product Designation":"Contactor relay","at 24 V rated value":"6 A","at 110 V rated value":"1 A","at 220 V rated value":"0.3 A","at 230 V rated value":"6 A","at 400 V rated value":"6 A","at 50 Hz rated value":"380 V","at 60 Hz rated value":"380 V","at 690 V rated value":"1 A","protection class IP on the front":"IP20","Product Extension Auxiliary Switch":"Yes","Surge Voltage Resistance Rated Value":"12 kV","operating frequency at DC-13 maximum":"1 000 1/h","shock resistance with sine pulse at AC":"15g / 5 ms, 8g / 10 ms","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Contact Reliability Of Auxiliary Contacts":"acceptability for PLC control (17 V, 5 mA)","apparent holding power of magnet coil at AC":"5.4 VA","apparent pick-up power of magnet coil at AC":"27 VA","number of NO contacts for auxiliary contacts":"4","Type Of Voltage Of The Control Supply Voltage":"AC","shock resistance at rectangular impulse at AC":"10g / 5 ms, 5g / 10 ms","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","Inductive Power Factor With The Holding Power Of The Coil":"0.27","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","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3806dee96eb79df7a764e5218e56a65a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1533829&mlfb=3RH7140-1AQ00"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH7140-1AQ00","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/3RH7140-1AQ00 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}