{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT6018-1AU02","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT6018-1AU02","canonicalUrl":"https://aoctrl.com/siemens/3RT6018-1AU02","factsUrl":"https://aoctrl.com/api/mcp/products/3RT6018-1AU02","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S00, 3RT6018-1AU02, 22 kW at 690 V AC-3, screw-type terminals, snap-on 35 mm DIN rail.","salesMarkdown":"## Siemens SIRIUS 3RT6018-1AU02 — Power Contactor, Size S00 The Siemens 3RT6018-1AU02 is a SIRIUS power contactor in the compact S00 frame, rated to switch a 22 kW motor at 690 V AC-3. That puts it in the middle of the S00 power band — enough for a moderate pump, fan, or conveyor drive without stepping up to the S0 frame. The S00 footprint is 45 mm wide, 57.5 mm tall, and 73 mm deep. ## Ratings and Duty Cycles AC-3 motor switching is the primary duty: 7.5 kW at 230 V, 13 kW at 400 V, and 22 kW at 690 V. The contactor handles up to 690 V insulation voltage and pollution degree 3 — typical for industrial panels. Mechanical life is 30 million operations, with maximum electrical switching rates of 1000 cycles/hour at AC-1, 750 at AC-3, and 250 at AC-4. Main circuit terminals accept screw-type connections. Wire sizes: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm² solid or stranded. Minimum permissible cross-section at 40 °C is 4 mm², derated to 2.5 mm² at 60 °C.","metaTitle":"Siemens 3RT6018-1AU02 SIRIUS Contactor, 22 kW at 690 V, S00","metaDescription":"Siemens 3RT6018-1AU02 SIRIUS power contactor, size S00, 22 kW at 690 V AC-3, screw terminals, snap-on DIN rail. Active production, sourced to order. RoHS/REACH compliant.","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":"240 V","at 60 Hz rated value":"240 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","for 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","operational current at AC-12 maximum":"10 A","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 2x 12","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":"1","number of NO contacts for auxiliary contacts instantaneous contact":"0"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/177e0b9aa5d23faeb1ce3bd50b1b1779.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=723081&mlfb=3RT6018-1AU02","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT6018-1AU02/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to 3RT6018-1AU02?","answer":"The 3RT6018-1AB02 is a direct sibling in the same S00 frame and AC-3 rating class. The main difference is the coil voltage — the -1AU02 uses a 230 V AC coil, while the -1AB02 uses a 24 V DC coil. Panel wiring and mounting are identical."},{"question":"Will 3RT6018-1AU02 drop into a panel specified around 3RT6018-1AB02 without rewiring?","answer":"Yes, the mechanical footprint and terminal layout are the same — both are S00 size with screw terminals and snap-on DIN rail mounting. The only change is the coil supply voltage: 230 V AC for the -1AU02 versus 24 V DC for the -1AB02."},{"question":"What compliance documentation does this brand provide for 3RT6018-1AU02?","answer":"The part carries a substance prohibitance date of 05/01/2012, indicating RoHS and REACH compliance. As a Siemens SIRIUS product, it also meets relevant IEC and UL standards for power contactors."},{"question":"Where can I buy 3RT6018-1AU02 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock or price figures are listed here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT6018-1AU02","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/3RT6018-1AU02 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}}