{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT6027-1AN20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT6027-1AN20","canonicalUrl":"https://aoctrl.com/siemens/3RT6027-1AN20","factsUrl":"https://aoctrl.com/api/mcp/products/3RT6027-1AN20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT6027-1AN20, S0 power contactor, 27.5 kW at 400 V 60 °C, AC-3/AC-3e rated 690 V max, screw terminals, 45 mm wide, DIN rail mount.","salesMarkdown":"The Siemens 3RT6027-1AN20 is a SIRIUS S0-frame power contactor rated for AC-3 and AC-3e switching up to 690 V. It delivers 27.5 kW at 400 V and 60 °C, and 47.5 kW at 690 V and 60 °C — these are the motor-load ratings that matter for sizing, not the unloaded thermal current. The 690 V insulation voltage and AC-3 rated maximum mean this contactor handles 690 V motor circuits without derating. Side-by-side mounting is supported, meaning no derating for adjacent contactors in a row. ## Wiring and auxiliary ratings Main circuit terminals accept 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid or stranded wire. The auxiliary contact ratings are: 6 A at 24 V, 1 A at 110 V, 0.3 A at 220 V, 10 A at 230 V, 3 A at 400 V, and 1 A at 690 V — these are the make/break capacities for the control circuit. Maximum switching frequency is 5000 1/h at AC, with lower limits for AC-3 (750 1/h) and AC-4 (250 1/h).","metaTitle":"Siemens 3RT6027-1AN20 SIRIUS Power Contactor, S0, 27.5 kW at","metaDescription":"Siemens 3RT6027-1AN20 SIRIUS S0 power contactor, 27.5 kW at 400V 60°C, AC-3 switching, 690V max, screw terminals, 45mm wide, current production. Source via RFQ.","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":"$390.66","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ea12f6099251523dcd81cd6c585d7ae5.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=580212&mlfb=3RT6027-1AN20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT6027-1AN20/alternatives.json"},"ai":{"faq":[{"question":"What are the key motor power ratings for the 3RT6027-1AN20?","answer":"At 60 °C, it delivers 15.5 kW at 230 V, 27.5 kW at 400 V, and 47.5 kW at 690 V. These are the AC-3 motor-load ratings that determine fit for your motor."},{"question":"What is the physical size of the 3RT6027-1AN20?","answer":"It is 45 mm wide, 85 mm high, and 97 mm deep — the standard S0 frame size that occupies one 45 mm DIN rail slot."},{"question":"What compliance documentation is available for this contactor?","answer":"The part is RoHS compliant with a substance prohibition date of May 1, 2012, and carries the Siemens SIRIUS brand. It is rated for pollution degree 3 per IEC standards. Specific UL/CSA/CE documentation should be available from the manufacturer or distributor upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT6027-1AN20","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/3RT6027-1AN20 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}}