{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-1AM20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-1AM20","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-1AM20","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1AM20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor 3RT1026-1AM20, size S0, 11 kW at 400 V AC-2, 15.5 A AC-4, screw terminals, 45 mm width, snap-on DIN rail.","salesMarkdown":"Rated for 11 kW at 400 V in AC-2 duty (slip-ring motor starting) and 15.5 A in AC-4 duty (plugging/inching), this contactor handles the heavy switching cycles found in conveyor, hoist, and pump applications. The coil operating range spans 0.8 to 1.1 times the rated voltage at 50 Hz and 0.85 to 1.1 at 60 Hz, meaning the contactor holds in during brownout conditions down to about 80 % of nominal. That matters for lines fed from weak grids or long cable runs. Pollution degree 3 (conductive pollution) means it is suited for industrial environments where occasional condensation or light dust is present — no need for a sealed cabinet in most factory-floor settings. Electrical life depends on the load current and duty cycle, but the mechanical endurance gives a ceiling for maintenance planning. Solid wire accepted: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), max 2x (0.75 to 4 mm²). Stranded: 2x (1 to 2.5 mm²), 2x (2.5 to 6 mm²), max 2x 10 mm². AWG equivalents: 2x (16 to 12), 2x (14 to 10), 1x 8. That covers most panel wiring up to 6 mm² without needing ferrule adapters. Front protection is IP20 (finger-safe), terminal area is IP00 (no finger protection at the connection point). Side clearance of 6 mm is required for heat dissipation when mounting side-by-side — the contactor supports side-by-side mounting, so you can pack multiple units on the rail without extra spacing, but keep that 6 mm gap to adjacent components.","metaTitle":"Siemens 3RT1026-1AM20 SIRIUS Power Contactor, S0, 11 kW AC-2","metaDescription":"Siemens 3RT1026-1AM20 SIRIUS power contactor, size S0, 11 kW at 400 V AC-2, 15.5 A AC-4. Screw terminals, 45 mm wide, snap-on DIN rail. Current lifecycle, available to order.","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","Maximum":"2 000 m","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","At The Side":"6 mm","On The Front":"IP20","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Of The Terminal":"IP00","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Size of contactor":"S0","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":"208 V","at 500 V rated value":"11 kW","at 60 Hz rated value":"208 V","at 690 V rated value":"11 kW","Instantaneous Contact":"0","Side-by-side mounting":"Yes","For Main Current Circuit":"screw-type terminals","Single Or Multi-Stranded":"2x (1 ... 2,5 mm²), 2x (2,5 ... 6 mm²), max. 2x 10 mm²","at AC-2 at 400 V rated value":"11 kW","at AC-4 at 400 V rated value":"15.5 A","Operating current at AC-12 maximum":"10 A","With Type Of Assignment 2 Required":"fuse gL/gG: 35 A","at AWG conductors for main contacts":"2x (16 ... 12), 2x (14 ... 10), 1x 8","With Type Of Coordination 1 Required":"fuse gL/gG: 100 A","Reference code acc. to DIN EN 81346-2":"Q","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","at AWG conductors for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"screw-type terminals","at ambient temperature 40 °C rated value":"40 A","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","Inductive power factor with closing power of the coil":"0.72","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","Of The Contactor With Added Electronics-Compatible 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=309118&mlfb=3RT1026-1AM20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1AM20/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1026-1AM20 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current pricing and availability."},{"question":"What is the closest functional second-source to 3RT1026-1AM20?","answer":"The 3RT1023-1AL20 is a smaller S0 frame contactor with lower AC-3 ratings; it will not drop into a panel wired for the 3RT1026-1AM20 without checking the load current and coil voltage. The 3RT1026-1AM20 is the higher-rated sibling in the same frame size."},{"question":"What is the depth of 3RT1026-1AM20?","answer":"The depth is 91 mm."},{"question":"What solid wire sizes does the 3RT1026-1AM20 accept?","answer":"It accepts 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and max 2x (0.75 to 4 mm²) solid."},{"question":"Will 3RT1026-1AM20 drop into a panel specified around 3RT1023-1AL20 without rewiring?","answer":"Both are S0 frame size with the same 45 mm width and DIN-rail mounting, so the physical footprint is identical. However, the 3RT1026-1AM20 has higher AC-3 and AC-4 ratings; verify that the existing wiring and overload relay are sized for the higher current before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-1AM20","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/3RT1026-1AM20 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}}