{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT7027-1AH25","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT7027-1AH25","canonicalUrl":"https://aoctrl.com/siemens/3RT7027-1AH25","factsUrl":"https://aoctrl.com/api/mcp/products/3RT7027-1AH25","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT7027-1AH25, Size S0 contactor, 3-pole, 690 V AC-3 rated, screw terminals, IP20 front and terminal protection, screw and snap-on 35 mm DIN rail mounting.","salesMarkdown":"The Siemens 3RT7027-1AH25 is a Size S0 contactor with three normally-open main poles, rated for AC-3 switching up to 690 V. Front and terminal faces carry IP20 finger protection, so it's safe to handle inside an enclosed panel. The AC-3 switching frequency is rated at 800 operations per hour, while AC-4 (plugging/reversing) drops to 250 operations per hour; if your application cycles a motor in reverse frequently, stay under the AC-4 limit to avoid overheating the arc chamber. The coil draws 0.24 W holding power at DC — a low continuous draw that keeps the control transformer or DC supply lightly loaded. The closing power peaks at 0.72 W, so the inrush is modest. The magnet coil is rated for 48 V at 50/60 Hz, so verify your control voltage matches that nominal before wiring.","metaTitle":"Siemens 3RT7027-1AH25 Contactor, S0, 3-Pole, 690V AC-3, IP20","metaDescription":"Siemens 3RT7027-1AH25 S0 contactor, 3 NO main contacts, 690V AC-3 max, IP20 screw terminals. Active lifecycle. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"91 mm","Width":"55 mm","Height":"85.5 mm","at 50 Hz":"0.24","at 60 Hz":"0.24","On The Front":"IP20","During Storage":"-25 ... +70 °C","Of The Terminal":"IP20","at AC-3 maximum":"800 1/h","at AC-4 maximum":"250 1/h","lifecycle_stage":"current","During Operation":"-10 ... +55 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 50022","at AC-3e maximum":"800 1/h","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":"S0","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Degree Of Pollution":"3","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 50 Hz rated value":"48 V","at 60 Hz rated value":"48 V","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-3 rated value maximum":"690 V","at AC-3e rated value maximum":"690 V","Insulation Voltage Rated Value":"690 V","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","With Type Of Assignment 2 Required":"gL/gG NH 3NA: 50 A","closing power of magnet coil at DC":"0.72 W","holding power of magnet coil at DC":"0.24 W","Surge Voltage Resistance Rated Value":"6 kV","With Type Of Coordination 1 Required":"gL/gG NH 3NA: 125 A","shock resistance with sine pulse at AC":"12.5g / 5 ms, 7.8g / 10 ms","number of NC contacts for main contacts":"0","number of NO contacts for main contacts":"3","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Number Of Poles For Main Current Circuit":"3","Contact Reliability Of Auxiliary Contacts":"acceptability for PLC control (17 V, 5 mA)","Type Of Voltage Of The Control Supply Voltage":"AC","operational current at DC-13 at 220 V rated value":"0.3 A","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Required Spacing With Side-By-Side Mounting At The Side":"0 mm","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","number of NC contacts for auxiliary contacts instantaneous contact":"1","number of NO contacts for auxiliary contacts instantaneous contact":"1","Connectable Conductor Cross-Section For Main Contacts Finely Stranded With Core End Processing":"6 mm²","Connectable Conductor Cross-Section For Auxiliary Contacts Finely Stranded With Core End Processing":"0.5 ... 2.5 mm²"}},"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=1534000&mlfb=3RT7027-1AH25","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT7027-1AH25/alternatives.json"},"ai":{"faq":[{"question":"Does 3RT7027-1AH25 require a separate auxiliary contact block?","answer":"The contactor supports auxiliary switch extension (product extension auxiliary switch = Yes), but it ships without one fitted. If your circuit needs auxiliary contacts, order a separate block that mates with the S0 frame."},{"question":"Does 3RT7027-1AH25 fit on a standard DIN rail?","answer":"Yes. It mounts on 35 mm DIN rail per DIN EN 50022 using either screws or the snap-on clip. Side-by-side mounting is permitted without spacing."},{"question":"What is 3RT7027-1AH25's listed depth (91 mm) on this component line?","answer":"The depth is 91 mm, width 55 mm, height 85.5 mm. The S0 frame size keeps it compact for DIN-rail panels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT7027-1AH25","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/3RT7027-1AH25 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}}