{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT6028-1AN20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT6028-1AN20","canonicalUrl":"https://aoctrl.com/siemens/3RT6028-1AN20","factsUrl":"https://aoctrl.com/api/mcp/products/3RT6028-1AN20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S0 power contactor, 3RT6028-1AN20, screw-type terminals, 27.5 kW at 400 V AC-3e, snap-on 35 mm DIN rail.","salesMarkdown":"Side-by-side mounting allowed, so no forced gaps between contactors in a multi-motor panel. Screw terminals accept 2x 0.5–1.5 mm² or 2x 0.75–2.5 mm² solid or stranded. ## Switching Performance and Thermal Limits Rated for 5,000 operations per hour at AC, with AC-1 max at 1,000 1/h and AC-3/AC-3e max at 750 1/h. AC-4 max is 250 1/h — that's the plugging/inching duty cycle, so keep that in mind if the application involves frequent reversing. Pollution degree 3, insulation voltage rated 690 V. Mechanical life typical 10 million operations.","metaTitle":"Siemens 3RT6028-1AN20 SIRIUS S0 Power Contactor, 27.5 kW at","metaDescription":"Siemens 3RT6028-1AN20 SIRIUS S0 power contactor, 27.5 kW at 400 V AC-3e, screw terminals, snap-on DIN rail. Current production. Sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"97 mm","Width":"45 mm","at AC":"5 000 1/h","Height":"85 mm","at 50 Hz":"0.25","at 60 Hz":"0.28","During Storage":"-55 ... +80 °C","at AC-1 maximum":"1 000 1/h","at AC-3 maximum":"750 1/h","at AC-4 maximum":"250 1/h","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 50022","at AC-3e maximum":"750 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)","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"Power contactor","at 24 V rated value":"6 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":"10 A","at 400 V rated value":"3 A","at 50 Hz rated value":"220 V","at 60 Hz rated value":"220 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","Substance Prohibitance (Date)":"05/01/2012","at 40 °C minimum permissible":"10 mm²","at 60 °C minimum permissible":"10 mm²","Insulation Voltage Rated Value":"690 V","at 230 V at 60 °C rated value":"15.5 kW","at 400 V at 60 °C rated value":"27.5 kW","at 690 V at 60 °C rated value":"47.5 kW","at AWG cables for main contacts":"2x (16 ... 12), 2x (14 ... 8)","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","With Type Of Assignment 2 Required":"gL/gG LV HRC 3NA, DIAZED 5SB, NEOZED 5SE: 35 A","Surge Voltage Resistance Rated Value":"6 kV","With Type Of Coordination 1 Required":"gL/gG LV HRC 3NA, DIAZED 5SB, NEOZED 5SE: 100 A","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","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)","at ambient temperature 40 °C rated value":"50 A","at ambient temperature 60 °C rated value":"42 A","Type Of Voltage Of The Control Supply Voltage":"AC","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Required Spacing With Side-By-Side Mounting At The Side":"0 mm","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":"1","number of NO contacts for auxiliary contacts instantaneous contact":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/8eb1344ce4f0995e859b793ab18225cb.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=580230&mlfb=3RT6028-1AN20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT6028-1AN20/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to 3RT6028-1AN20 — 3RT6028-1AB00?","answer":"The 3RT6028-1AB00 is the same S0 frame and electrical rating but with spring-cage terminals instead of screw-type. It drops into the same panel footprint and DIN rail without rewiring; the only difference is the termination method."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT6028-1AN20","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/3RT6028-1AN20 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}}