{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT7026-1AV05","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT7026-1AV05","canonicalUrl":"https://aoctrl.com/siemens/3RT7026-1AV05","factsUrl":"https://aoctrl.com/api/mcp/products/3RT7026-1AV05","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S0 contactor, 3RT7026-1AV05, 3-pole, 690 V AC-3 max, screw terminals, IP20, 55 mm width, DIN rail mount.","salesMarkdown":"The Siemens 3RT7026-1AV05 is a Size S0 three-pole contactor from the SIRIUS family, rated for AC-3 switching up to 690 V. The 3 NO main contacts handle motor loads; the auxiliary contact block is field-addable (product extension auxiliary switch is supported). Coil holding power is 0.24 W at both 50 and 60 Hz, with a closing power of 0.82 W DC — low enough for direct PLC output drive without an interposing relay in many panels. The 55 mm width and 91 mm depth fit standard S0 footprint — drops into existing S0 cutouts without panel rework. Side-by-side mounting is permitted, so multiple contactors can pack tightly on the rail. The auxiliary contact ratings are 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V; these are the maximums for the built-in auxiliary, so if your PLC feedback loop draws 5 mA at 17 V, the contact reliability is specified for that low-level signal (acceptability for PLC control). Both use NH 3NA fuses. This matters when you are designing a motor branch circuit to IEC 60947-4-1 — the 35 A limit tells you the maximum upstream protective device that still leaves the contactor reusable after a fault.","metaTitle":"Siemens 3RT7026-1AV05 Contactor, S0, 3-Pole, 690V AC-3, 55mm","metaDescription":"Siemens 3RT7026-1AV05 S0 contactor, 3-pole, 690V AC-3 max, IP20, screw terminals, DIN rail mount. 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":"400 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: 35 A","closing power of magnet coil at DC":"0.82 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: 80 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":"https://cdn.aoctrl.com/95ef7c113f52826be3cc7bc79368e509.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1533979&mlfb=3RT7026-1AV05","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT7026-1AV05/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for 3RT7026-1AV05?","answer":"The closest peer is 3RT6026-1AN20, also an S0 three-pole contactor with screw terminals. The 3RT7026-1AV05 carries a 690 V AC-3 maximum rating, while the 3RT6026-1AN20 is rated at 400 V AC-3. If your circuit voltage stays at 400 V or below, the 3RT6026-1AN20 is a functional drop-in; above that, stick with the 3RT7026-1AV05."},{"question":"Will 3RT7026-1AV05 drop into a panel specified for 3RT6026-1AN20 without rewiring?","answer":"Yes — both are S0 size, same 55 mm width, same screw-terminal pattern, same DIN-rail mounting. The wiring footprint is identical. Just verify your circuit voltage does not exceed 400 V if you swap to the 3RT6026-1AN20; the 3RT7026-1AV05 handles up to 690 V AC-3."},{"question":"What compliance documentation does Siemens provide for 3RT7026-1AV05?","answer":"Siemens SIRIUS contactors carry CE marking, UL/CSA recognition, and RoHS/REACH compliance declarations. The specific approvals are listed on the manufacturer's declaration of conformity; contact your Siemens channel partner for the current certificate bundle."},{"question":"Where can I buy 3RT7026-1AV05 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT7026-1AV05","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/3RT7026-1AV05 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}}