{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2518-2AF00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2518-2AF00","canonicalUrl":"https://aoctrl.com/siemens/3RT2518-2AF00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2518-2AF00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS contactor 3RT2518-2AF00, size S00, 10 A auxiliary contacts at 24 V, spring-type coil terminals, screw and snap-on mounting onto 35 mm DIN rail.","salesMarkdown":"The Siemens 3RT2518-2AF00 is a SIRIUS contactor in the S00 frame size, designed for switching auxiliary and control circuits up to 10 A at 24 V. It mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 50022, with a width of 45 mm and depth of 73 mm, so it fits standard panel layouts without crowding adjacent devices. The auxiliary switch is rated 10 A at 24 V and 230 V, 2 A at 48 V, 60 V, and 125 V, 1 A at 110 V, 3 A at 400 V, 0.8 A at 440 V, and 0.1 A at 600 V. These are the maximum continuous currents the contacts can make and break at each voltage level — so at 24 VDC you get the full 10 A, but at 600 VAC you're limited to 0.1 A. For a 24 VDC PLC output driving a contactor coil, the 10 A rating gives plenty of headroom. The coil connection uses spring-type terminals, accepting 2x (0.5 to 4 mm²) solid or stranded wire. The mounting position allows ±180° rotation on a vertical surface and ±22.5° tilt forward/backward, so you can orient it for tight panel access.","metaTitle":"Siemens 3RT2518-2AF00 SIRIUS Contactor, S00 Frame, 10 A Aux","metaDescription":"Siemens 3RT2518-2AF00 SIRIUS contactor, size S00. 10 A auxiliary contacts at 24 V. Spring-type coil terminals. Snap-on DIN rail mount. Current production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"73 mm","Solid":"2x (0.5 ... 4 mm²)","Width":"45 mm","at AC":"4 ... 15 ms","at DC":"10 000 1/h","Height":"70 mm","Upwards":"0 mm","Forwards":"0 mm","at 50 Hz":"0.25","at 60 Hz":"0.25","Backwards":"0 mm","Downwards":"0 mm","Arcing Time":"10 ... 15 ms","At The Side":"6 mm","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Spring-type terminals","at AC-1 maximum":"1 000 1/h","lifecycle_stage":"current","Auxiliary Switch":"Yes","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 50022","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 ... 4 mm²)","Product Brand Name":"SIRIUS","Product Designation":"contactor","at 24 V rated value":"10 A","at 48 V rated value":"2 A","at 60 V rated value":"2 A","Of Contactor Typical":"30 000 000","at 110 V rated value":"1 A","at 125 V rated value":"2 A","at 220 V rated value":"0.3 A","at 230 V rated value":"10 A","at 400 V rated value":"3 A","at 440 V rated value":"0.8 A","at 50 Hz rated value":"110 V","at 60 Hz rated value":"110 V","at 600 V rated value":"0.1 A","Side-By-Side Mounting":"Yes","For Main Current Circuit":"spring-loaded terminals","Relative Humidity Minimum":"10 %","per NC contact rated value":"9 A","per NO contact rated value":"16 A","Of Main Circuit Rated Value":"6 kV","Substance Prohibitance (Date)":"10/01/2009","Of Auxiliary Circuit Rated Value":"6 kV","For Auxiliary And Control Circuit":"spring-loaded terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 20A (690V, 100kA)","at 24 V per NC contact rated value":"20 A","at 24 V per NO contact rated value":"20 A","at AC at 230 V maximum permissible":"0.004 A","At Contactor For Auxiliary Contacts":"Spring-type terminals","at 110 V per NC contact rated value":"0.175 A","at 110 V per NO contact rated value":"0.35 A","at 220 V per NC contact rated value":"0.375 A","at 220 V per NO contact rated value":"0.75 A","at 230 V per NC contact rated value":"2.2 kW","at 230 V per NO contact rated value":"4 kW","at 400 V per NC contact rated value":"4 kW","at 400 V per NO contact rated value":"7.5 kW","With Type Of Coordination 1 Required":"gG: 35 A (690 V, 100 kA)","operational current at AC-12 maximum":"10 A","for AWG cables for auxiliary contacts":"2x (20 ... 12)","number of NC contacts for main contacts":"2","number of NO contacts for main contacts":"2","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"2x (0.5 ... 2.5 mm²)","Number Of Poles For Main Current Circuit":"4","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","mirror contact according to IEC 60947-4-1":"Yes; with 3RH29","Finely Stranded Without Core End Processing":"2x (0.5 ... 2.5 mm²)","apparent holding power of magnet coil at AC":"4.2 VA","apparent pick-up power of magnet coil at AC":"37 VA","Type Of Voltage Of The Control Supply Voltage":"AC","for 3-phase AC motor at 460/480 V rated value":"5 hp","for single-phase AC motor at 230 V rated value":"2 hp","Limited To 1 S Switching At Zero Current Maximum":"165 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"165 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"128 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"92 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"74 A; Use minimum cross-section acc. to AC-1 rated value","contact rating of auxiliary contacts according to UL":"A600 / Q600","Inductive Power Factor With Closing Power Of The Coil":"0.8","Of Main Circuit With Degree Of Pollution 3 Rated Value":"690 V","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.25","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","Of Auxiliary Circuit With Degree Of Pollution 3 Rated Value":"690 V","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gG: 10 A","minimum cross-section in main circuit at maximum AC-1 rated value":"4 mm²","number of NC contacts for auxiliary contacts instantaneous contact":"0","number of NO contacts for auxiliary contacts instantaneous contact":"0","AWG number as coded connectable conductor cross section for main contacts":"20 ... 12","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000","power loss [W] at AC-3 at 400 V for rated value of the operational current per conductor":"2.2 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=64398&mlfb=3RT2518-2AF00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2518-2AF00/alternatives.json"},"ai":{"faq":[{"question":"What are the key dimensions of this contactor?","answer":"Width is 45 mm, height 70 mm, and depth 73 mm. It mounts on 35 mm DIN rail with zero clearance needed in most directions except 6 mm at the side."},{"question":"What wire sizes does the coil terminal accept?","answer":"The spring-type coil terminals accept 2x (0.5 to 4 mm²) solid or stranded wire."},{"question":"What is the auxiliary contact rating at 24 V?","answer":"The auxiliary switch is rated 10 A at 24 V, both AC and DC."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2518-2AF00","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/3RT2518-2AF00 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}}