{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-1AN20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-1AN20","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-1AN20","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1AN20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S0, 3RT1026-1AN20, screw-type terminals, 11 kW at AC-2 400 V, 24 VDC coil, IP20 front, snap-on DIN rail mounting.","salesMarkdown":"## SIRIUS S0 Power Contactor, 11 kW AC-2 — Current Production The 3RT1026-1AN20: Rated at 11 kW in AC-2 duty at 400 V, this contactor handles slip-ring motor loads where starting current is moderate. For AC-4 reversing or inching duty at 400 V, the thermal current rating drops to 15.5 A — a figure that governs the real-world service life under frequent jogging. Verify the control transformer and free-wheel diode polarity before energizing inductive loads downstream. ## Short-Circuit Coordination and Wiring Type 1 coordination (welding allowed but no fire risk) permits a 100 A gL/gG fuse. This lets the panel designer balance protection level against selectivity with downstream motor starters. Main circuit screw terminals accept 2x (1 to 2.5 mm²) solid/stranded, up to 2x 10 mm² max. Auxiliary control terminals take 2x (0.5 to 1.5 mm²) solid, up to 2x 4 mm² max. AWG equivalents are 2x (16 to 12) for mains and 2x (20 to 16) for auxiliaries. Substance prohibitance (RoHS) compliance date is 01.07.2006, indicating the design meets EU RoHS 1 requirements. Pollution degree 3 rating means the contactor withstands conductive pollution in industrial environments — no additional conformal coating needed for typical panel conditions.","metaTitle":"Siemens 3RT1026-1AN20 SIRIUS Power Contactor, S0, 11 kW AC-2","metaDescription":"Siemens 3RT1026-1AN20 SIRIUS power contactor, size S0, 11 kW at AC-2 400 V, screw terminals, 24 VDC coil, 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":"91 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"45 mm","Height":"85 mm","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","On The Front":"IP20","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","Of The Terminal":"IP00","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Size Of Contactor":"S0","Solid Or Stranded":"2x (1 ... 2,5 mm²), 2x (2,5 ... 6 mm²), max. 2x 10 mm²","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"power contactor","at 24 V rated value":"10 A","at 60 V rated value":"2 A","Of Contactor Typical":"10 000 000","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":"3 A","at 50 Hz rated value":"220 V","at 500 V rated value":"11 kW","at 60 Hz rated value":"220 V","at 690 V rated value":"11 kW","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"11 kW","at AC-4 at 400 V rated value":"15.5 A","Substance Prohibitance (Date)":"01.07.2006 00:00:00","at AWG cables for main contacts":"2x (16 ... 12), 2x (14 ... 10), 1x 8","For Auxiliary And Control Circuit":"screw-type terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 35 A","reference code acc. to IEC 81346-2":"Q","With Type Of Coordination 1 Required":"fuse gL/gG: 100 A","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","operational current at AC-12 maximum":"10 A","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":"1 faulty switching per 100 million (17 V, 1 mA)","apparent holding power of magnet coil at AC":"8.4 V·A","apparent pick-up power of magnet coil at AC":"64 V·A","Type Of Voltage Of The Control Supply Voltage":"AC","Required Spacing For Grounded Parts At The Side":"6 mm","Inductive Power Factor With Closing Power Of The Coil":"0.72","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.24","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","number of NC contacts for auxiliary contacts instantaneous contact":"0","number of NO contacts for auxiliary contacts instantaneous contact":"0","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"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=384356&mlfb=3RT1026-1AN20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1AN20/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1026-1AN20?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the closest functional alternative to 3RT1026-1AN20?","answer":"The 3RT1026-1AB00 is a direct peer in the same S0 frame and AC-2 power rating, but with an AC coil instead of the 24 VDC coil on the -1AN20. If your control voltage is 24 VDC, the -1AN20 is the correct choice; swapping to the -1AB00 would require a different control transformer and wiring."},{"question":"What are the key ratings of 3RT1026-1AN20?","answer":"Rated 11 kW at AC-2 400 V for slip-ring motor loads, 15.5 A at AC-4 400 V for reversing duty. The 24 VDC coil draws 10 A. Short-circuit coordination requires a 35 A gL/gG fuse for Type 2 or 100 A for Type 1."},{"question":"What compliance documentation does Siemens provide for 3RT1026-1AN20?","answer":"RoHS compliance is confirmed with a substance prohibitance date of 01.07.2006. The contactor carries pollution degree 3 rating per IEC 60947, and the reference code per IEC 81346-2 is Q."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-1AN20","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/3RT1026-1AN20 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}}