{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-1AP05","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-1AP05","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-1AP05","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1AP05","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S0 power contactor, 3RT1026-1AP05, 3 NO main contacts, screw terminals, 55 x 85 x 91 mm, DIN rail mount, AC-12 10 A at 400 V.","salesMarkdown":"## Integrator note — SIRIUS S0 power contactor The Siemens 3RT1026-1AP05 is a SIRIUS S0-frame power contactor with three normally-open main contacts and zero NC main contacts. It is rated for AC-12 duty at 10 A (resistive loads on control circuits) and can switch motor loads in AC-2 at 11 kW at 400 V or handle AC-4 reversing duty at 15.5 A at 400 V. The contactor mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 50022, and the S0 footprint — 55 mm wide, 85 mm tall, 91 mm deep — fits standard panel layouts. Side-by-side mounting is permitted, so multiple units pack tightly on the rail. Main current circuit connections use screw-type terminals. The solid/stranded wire range for main contacts accepts 2x (1 to 2.5 mm²), 2x (2.5 to 6 mm²), or max 2x 10 mm²; AWG equivalents are 2x (16 to 12), 2x (14 to 10), or 1x 8. Auxiliary/control circuit terminals accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²). For type 2 coordination (contactor remains operational after a fault), use a gL/gG 35 A fuse. These ratings apply to the main circuit and let you size the branch protection correctly.","metaTitle":"Siemens 3RT1026-1AP05 SIRIUS S0 Power Contactor, 3 NO, 10A A","metaDescription":"Siemens 3RT1026-1AP05 SIRIUS S0 power contactor, 3 NO main contacts, rated 10A AC-12 at 400V. Current production. Screw terminals, DIN rail mount. Quoted 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":"55 mm","Height":"85 mm","Maximum":"2 000 m","at 50 Hz":"0.8 ... 1.1","At The Side":"6 mm","On The Front":"IP20","1 Rated Value":"50 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":"230 V","at 500 V rated value":"11 kW","at 690 V rated value":"11 kW","Instantaneous Contact":"1","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":"7.8 V·A","Apparent pick-up power of magnet coil at AC":"61 V·A","Type of voltage of the control supply voltage":"AC","Inductive power factor with closing power of the coil":"0.82","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=282451&mlfb=3RT1026-1AP05","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1AP05/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to 3RT1026-1AP05?","answer":"The 3RT1023-1AL20 is a smaller S0-frame contactor (lower current rating) and will not drop into the same panel position without checking the coil voltage and load current. The 3RT1026-1AP05 has a higher AC-12 rating (10 A vs the 3RT1023-1AL20's lower rating) and different terminal wire ranges. Verify your load before substituting."},{"question":"Where can I buy 3RT1026-1AP05 and how is it quoted?","answer":"This part is sourced to order through independent distribution. Submit an RFQ for current pricing and availability — both are confirmed at quote time. Volume and scheduled orders are handled on request."},{"question":"What compliance documentation does Siemens provide for 3RT1026-1AP05?","answer":"The contactor carries a reference code per DIN EN 81346-2 (Q for power switching equipment). Standard Siemens documentation includes the declaration of conformity for the Low Voltage Directive; specific RoHS and REACH declarations are available from Siemens support. The part is designed for pollution degree 3 environments."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-1AP05","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/3RT1026-1AP05 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}}