{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT7026-1AQ05","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT7026-1AQ05","canonicalUrl":"https://aoctrl.com/siemens/3RT7026-1AQ05","factsUrl":"https://aoctrl.com/api/mcp/products/3RT7026-1AQ05","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT7026-1AQ05, Size S0 3-pole contactor, 6 A at 230 V / 3 A at 400 V AC-3, screw terminals, 35 mm DIN rail snap-on, IP20.","salesMarkdown":"The Siemens 3RT7026-1AQ05 is a Size S0 3-pole contactor with three normally-open main contacts. ## Current ratings and what they drive Rated 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V in AC-3 duty — those are the motor-switching currents for a standard 3-phase induction motor load. The AC-3 curve is the one that governs real-world contactor sizing for squirrel-cage motors: at 400 V line, this contactor handles a motor drawing roughly 3 A full-load, which corresponds to about a 1.5 kW motor at 400 V three-phase. The 690 V rating is there for 690 V line systems (common in mining or heavy industrial), but the current drops to 1 A. ## Switching frequency and control reliability Maximum switching rate is 800 operations per hour under AC-3 load, and 250 ops/h under AC-4 (plugging/reversing duty). That's enough for a conveyor start-stop cycle but not for a high-speed pick-and-place. The magnet coil draws 0.82 W during closing and holds at 0.24 W DC. That low holding power keeps the coil cool in a sealed panel and reduces the burden on a 24 VDC power supply. Surge voltage withstand is 6 kV, pollution degree 3, so it's rated for the dirty, humid environments typical of industrial enclosures without conformal coating. ## Mounting and integration details Wire size: 2 x 0.5 to 1.5 mm² solid/stranded or 2 x 0.75 to 2.5 mm² with ferrules. Screw terminals on both main and control circuits — no spring-cage option on this order code. ## Fuse coordination and short-circuit protection For type 2 coordination (contactor remains operational after a fault), step down to a 35 A gL/gG fuse. That's a standard distinction: type 2 is preferred for production-critical lines where you want to clear a fault and restart without swapping the contactor.","metaTitle":"Siemens 3RT7026-1AQ05 Contactor, S0, 3-Pole, 690V AC-3","metaDescription":"Siemens 3RT7026-1AQ05 contactor, Size S0, 3-pole, 6A at 230V, 3A at 400V AC-3. Screw terminals, DIN rail mount. Active production. Quoted to order.","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":"380 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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1533976&mlfb=3RT7026-1AQ05","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT7026-1AQ05/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for 3RT7026-1AQ05?","answer":"3-pole, 3 NO main contacts, Size S0. AC-3 rated 6 A at 230 V, 3 A at 400 V, 1 A at 690 V. Coil hold power 0.24 W DC. Screw terminals, IP20, mounts on 35 mm DIN rail."},{"question":"Where can I buy 3RT7026-1AQ05 and what is the lead time?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commitment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT7026-1AQ05","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/3RT7026-1AQ05 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}}