{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT6018-1AN21","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT6018-1AN21","canonicalUrl":"https://aoctrl.com/siemens/3RT6018-1AN21","factsUrl":"https://aoctrl.com/api/mcp/products/3RT6018-1AN21","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, power contactor, Size S00, 3RT6018-1AN21, 45 mm width, screw-type terminals, rated 7.5 kW at 230 V and 13 kW at 400 V.","salesMarkdown":"It carries screw-type terminals for the main current circuit and mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 50022, fitting a standard panel footprint at 45 mm wide, 57.5 mm high, and 73 mm deep. The key selection figures are the motor ratings at 60 °C: 7.5 kW at 230 V, 13 kW at 400 V, and 22 kW at 690 V. These are the continuous switching capacities for a three-phase induction motor in AC-3 duty — the most common load type on a production line. The 400 V rating (13 kW) is the one that typically governs fit for a 400 V three-phase supply in European panels. ## Integration notes The contactor accepts 2× (0.5 to 1.5 mm²), 2× (0.75 to 2.5 mm²), or 2× 4 mm² solid or stranded wire. Minimum conductor size at 40 °C is 4 mm²; at 60 °C it drops to 2.5 mm².","metaTitle":"Siemens 3RT6018-1AN21 SIRIUS Power Contactor, Size S00, 7.5","metaDescription":"Siemens 3RT6018-1AN21 SIRIUS power contactor, Size S00, 45 mm wide, screw terminals, rated 7.5 kW at 230 V and 13 kW at 400 V. Current lifecycle. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"73 mm","Width":"45 mm","at AC":"10 000 1/h","Height":"57.5 mm","at 50 Hz":"0.25","at 60 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":"S00","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"Power contactor","at 24 V rated value":"6 A","Of Contactor Typical":"30 000 000","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":"4 mm²","at 60 °C minimum permissible":"2.5 mm²","Insulation Voltage Rated Value":"690 V","at 230 V at 60 °C rated value":"7.5 kW","at 400 V at 60 °C rated value":"13 kW","at 690 V at 60 °C rated value":"22 kW","at AWG cables for main contacts":"2x (20 ... 16), 2x (18 ... 14), 2x 12","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: 20 A","Surge Voltage Resistance Rated Value":"6 kV","With Type Of Coordination 1 Required":"gL/gG LV HRC 3NA, DIAZED 5SB, NEOZED 5SE: 35 A","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 2x 12","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":"22 A","at ambient temperature 60 °C rated value":"20 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":"0","number of NO contacts for auxiliary contacts instantaneous contact":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$380.64","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/1904e2ea5d70c910556c20c7345bf243.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=579940&mlfb=3RT6018-1AN21","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT6018-1AN21/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT6018-1AN21 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What compliance documentation does this brand provide for 3RT6018-1AN21?","answer":"The part carries a substance prohibition date of 05/01/2012, indicating RoHS compliance. The insulation voltage is rated 690 V, and the degree of pollution is 3 per IEC standards."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT6018-1AN21","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/3RT6018-1AN21 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}}