{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH7140-1AH00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH7140-1AH00","canonicalUrl":"https://aoctrl.com/siemens/3RH7140-1AH00","factsUrl":"https://aoctrl.com/api/mcp/products/3RH7140-1AH00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS contactor relay, size S00, 4 NO contacts, AC coil, screw-type terminals, 45 mm width, IP20 front.","salesMarkdown":"This is a contactor relay — it switches control circuits, not motor loads directly. The 4 NO contacts are rated for 6 A at 24 V, 230 V, and 400 V AC, and 1 A at 690 V AC, covering most 24–690 V control-voltage ranges you'd find in a panel. The contacts are also rated for PLC-level switching reliability down to 17 V, 5 mA, so it handles low-signal circuits without contact oxidation issues. The AC coil draws 27 VA pick-up and 5.4 VA holding, with a power factor of 0.8 on pick-up and 0.27 on hold — figures that matter when sizing the control transformer for a multi-contactor bank. That covers most panel layouts without derating, but the operating temperature range is -10 to +55 °C, storage -25 to +70 °C. Screw terminals accept 2x 0.5–1.5 mm² solid/stranded, 2x 0.75–2.5 mm², or 2x 4 mm². Finely stranded wire needs ferrule processing. Rated surge voltage resistance is 8 kV, and insulation voltage is 690 V at pollution degree 3 — standard for industrial control panels operating up to 690 V line-to-line. Maximum installation altitude is 2000 m without derating.","metaTitle":"Siemens 3RH7140-1AH00 SIRIUS Contactor Relay, 4 NO, AC Coil,","metaDescription":"Siemens 3RH7140-1AH00 SIRIUS contactor relay, size S00, 4 NO auxiliary contacts, AC coil, screw terminals, IP20 front, current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"72 mm","Width":"45 mm","title":"3RH7140-1AH00","Height":"57.5 mm","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","description":"Contactor relay 4NO 48V 50/60Hz AC 48V 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":"48 V","at 60 Hz rated value":"48 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":"8 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/6425681b8794f48d3b607597d3cb8c14.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1533826&mlfb=3RH7140-1AH00"},"ai":{"faq":[{"question":"Will 3RH7140-1AH00 drop into a panel that was specified around 3RH6140-1AP00 without rewiring?","answer":"Both are SIRIUS contactor relays in the S00 frame with the same 45 mm width and DIN-rail mounting, so the mechanical footprint is identical. The 3RH7140-1AH00 uses screw terminals; the 3RH6140-1AP00 uses spring-cage terminals. If the panel was wired for spring-cage, you'd need to adapt the wiring method — the terminal type is the main difference."},{"question":"What is 3RH7140-1AH00's listed depth (72 mm) on this component line?","answer":"The depth is 72 mm. That's the dimension from the DIN-rail mounting surface to the front of the device — relevant for enclosure depth clearance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH7140-1AH00","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/3RH7140-1AH00 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}}