{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH7140-1AV00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH7140-1AV00","canonicalUrl":"https://aoctrl.com/siemens/3RH7140-1AV00","factsUrl":"https://aoctrl.com/api/mcp/products/3RH7140-1AV00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RH7140-1AV00 contactor relay, size S00, 4 NO auxiliary contacts, 6 A at 400 V AC, screw-type terminals, IP20 front, DIN-rail snap-on mounting.","salesMarkdown":"## Active production — what that means for your BOM The 3RH7140-1AV00 is a size S00 contactor relay with 4 NO auxiliary contacts (identification 40 E). ## Panel fit and wiring — DIN-rail snap-on with screw terminals Auxiliary and control circuits terminate with screw-type terminals. Finely stranded wire with core-end processing also fits the same ranges. The AC coil draws 27 VA apparent power at pick-up and 5.4 VA holding, with inductive power factors of 0.8 and 0.27 respectively. The holding VA is low enough that a typical 24 V AC control transformer can run several of these relays without exceeding its rating — but the pick-up surge matters if you are energising multiple coils simultaneously. Auxiliary contacts are rated for PLC-level reliability: 17 V, 5 mA minimum switching capability. That means they can switch low-energy signals from a PLC input directly without needing an interposing relay — a detail that saves a component and a wiring step when the control voltage is 24 V DC.","metaTitle":"Siemens 3RH7140-1AV00 SIRIUS Contactor Relay, 4 NO","metaDescription":"Siemens 3RH7140-1AV00 SIRIUS contactor relay, size S00, 4 NO auxiliary contacts, 6 A rated at 400 V AC. Screw terminals, IP20 front, DIN-rail mount.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"72 mm","Width":"45 mm","title":"3RH7140-1AV00","Height":"57.5 mm","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","description":"Contactor relay 4NO AC 400V 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":"400 V","at 60 Hz rated value":"400 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":"13 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/917e6590f04e290486eaf64672340684.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1533830&mlfb=3RH7140-1AV00"},"ai":{"faq":[{"question":"What is the rated switching current of 3RH7140-1AV00 at different voltages?","answer":"At 24 V, 230 V, and 400 V AC it is rated 6 A. At 110 V and 690 V AC it is rated 1 A. At 220 V AC it is rated 0.3 A. The 400 V rating is the headline figure for motor control circuits."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH7140-1AV00","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/3RH7140-1AV00 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}}