{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT6028-1AQ00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT6028-1AQ00","canonicalUrl":"https://aoctrl.com/siemens/3RT6028-1AQ00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT6028-1AQ00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT6028-1AQ00, S0 size power contactor, screw-type terminals, 27.5 kW motor power at 400 V AC-3e, 690 V rated insulation voltage.","salesMarkdown":"It is rated for AC-3e duty up to 690 V, delivering 27.5 kW at 400 V and 47.5 kW at 690 V at 60 °C — these are the real-world motor-switching numbers that govern fit for a conveyor, pump, or fan circuit. The S0 frame size and 45 mm width mean it fits standard panel layouts without surprises. The AC-3e rated switching frequency of 750 cycles per hour is the practical limit for motor starting under load — exceed it and the contactor overheats. The AC-1 resistive rating allows 1,000 cycles per hour, useful for heater banks or lighting. The mechanical life of 10 million operations means the coil and armature will outlast most panel rebuild cycles. Rated insulation voltage of 690 V and a pollution degree of 3 (conductive pollution, typical in industrial enclosures) confirm this contactor is specified for ungrounded IT systems and harsh environments. The coil draws 6 A at 24 V rated value, 1 A at 110 V, and 0.3 A at 220 V — these are the inrush and hold currents the PLC output or control transformer must supply. The 0.25 power factor at 50 Hz matters for sizing the control transformer VA. Terminals accept 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid or stranded wire, or 2x (16 to 12) / 2x (14 to 8) AWG. The minimum permissible conductor cross-section at both 40 °C and 60 °C is 10 mm², which sets the minimum wire size for the main circuit. It is not subject to a last-time-buy or phase-out notice.","metaTitle":"Siemens SIRIUS 3RT6028-1AQ00 Power Contactor, S0 Size, 27.5","metaDescription":"Siemens SIRIUS 3RT6028-1AQ00 power contactor, S0 size, screw terminals, 27.5 kW at 400 V AC-3e. Active production, DIN rail mount. RFQ for pricing and lead time.","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","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":"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","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","for 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","operational current at AC-12 maximum":"10 A","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","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/6e37eb916774dce885372572c68fa169.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=580232&mlfb=3RT6028-1AQ00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT6028-1AQ00/alternatives.json"},"ai":{"faq":[{"question":"What are the key motor power ratings for this contactor?","answer":"At 60 °C, the contactor is rated for 15.5 kW at 230 V, 27.5 kW at 400 V, and 47.5 kW at 690 V under AC-3e duty. These are the motor-switching ratings that determine fit for a given load."},{"question":"What is the physical size of the 3RT6028-1AQ00?","answer":"The contactor measures 85 mm high, 45 mm wide, and 97 mm deep. It is an S0 frame size, fitting standard 45 mm-wide DIN-rail slots."},{"question":"What compliance documentation is available for this part?","answer":"The part carries a substance prohibition date of 05/01/2012, indicating RoHS and REACH compliance. The SIRIUS series typically holds UL, CSA, and CE certifications, though specific marks should be verified against the nameplate for the exact variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT6028-1AQ00","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/3RT6028-1AQ00 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}}