{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2344-1AF00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2344-1AF00","canonicalUrl":"https://aoctrl.com/siemens/3RT2344-1AF00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2344-1AF00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2344-1AF00, size S3 contactor, AC coil, screw-type terminals, 3-pole main contacts, 1 instantaneous auxiliary contact, screw and snap-on mounting on 35 mm DIN rail.","salesMarkdown":"## SIRIUS S3 contactor — AC coil, 3-pole, DIN-rail mount The Siemens 3RT2344-1AF00 is a SIRIUS-branded size S3 contactor with an AC-operated magnet coil terminated at screw-type terminals. It switches three main poles and carries one instantaneous auxiliary contact. Rated for 10 A at 24 V, 6 A at 60 V, 6 A at 230 V, and 3 A at 400 V, the contactor covers a wide range of control voltages for motor and resistive loads in industrial panels. The AC coil (type of voltage: AC) pulls in and drops out with typical arcing times of 10 to 20 ms and an operate time at AC of 10 to 21 ms. For a commissioning engineer, this means the contactor is suited for standard AC control circuits — not DC coils — so verify your control transformer or PLC output matches AC before wiring. Rated operational currents span from 10 A at 24 V down to 0.1 A at 600 V, with a notable 6 A at 60 V and 6 A at 230 V. Mechanical endurance is rated at 10,000,000 operating cycles typical, which for a packaging line running at 60 cycles per minute translates to roughly 2,800 hours of continuous duty before mechanical wear becomes a consideration. The auxiliary switch (1 instantaneous contact) shares the same mechanical life. Dimensions: 140 mm high, 96 mm wide, 152 mm deep. The 96 mm width occupies three standard 18 mm DIN-rail module spaces, so budget three positions on the rail. Main circuit wiring accepts stranded conductors from 6 to 70 mm². The auxiliary/coil terminals accept solid conductors 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²). For a panel wireman, the 70 mm² upper limit on the mains means this contactor can handle up to roughly 150 A cable — well above the contactor's own rated current, so the limiting factor is the contactor rating, not the lug capacity. The storage limit governs handling during transport and warehouse idle — not running conditions. For a BOM freeze or MRO planner, this means the part is a safe line-item for new designs and ongoing maintenance spares.","metaTitle":"Siemens 3RT2344-1AF00 SIRIUS Contactor, S3 Size, AC Coil","metaDescription":"Siemens 3RT2344-1AF00 SIRIUS contactor, size S3, AC coil, 3-pole. Screw and snap-on DIN rail mount. Rated 10 A at 24 V. Current lifecycle stage. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"152 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Width":"96 mm","at AC":"10 ... 21 ms","title":"3RT2344-1AF00","Height":"140 mm","Upwards":"10 mm","Forwards":"20 mm","Stranded":"6 ... 70 mm²","at 50 Hz":"0.38","Downwards":"10 mm","Attachable":"2","Arcing Time":"10 ... 20 ms","At The Side":"10 mm","description":"contactor AC-1, 110 A, 400 V / 40 °C, 4-pole, 110 V AC, 50 Hz, auxiliary contacts: 1 NO + 1 NC, screw terminal, size: S3","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","Type Of Voltage":"AC","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 60715","For Main Contacts":"10 ... 2","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":"S3","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 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":"6 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 A","at 125 V rated value":"0.9 A","at 220 V rated value":"0.3 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 50 Hz rated value":"110 V","at 500 V rated value":"2 A","at 600 V rated value":"0.1 A","at 690 V rated value":"1 A","Instantaneous Contact":"1","Side-By-Side Mounting":"Yes","For Auxiliary Contacts":"20 ... 14","For Main Current Circuit":"screw-type terminals","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"8 kV","at AC in hot operating state":"29.2 W","Substance Prohibitance (Date)":"09/01/2017","Of Auxiliary Circuit Rated Value":"6 kV","For Auxiliary And Control Circuit":"screw-type terminals","Function Module For Communication":"No","Product Function Bus Communication":"No","With Type Of Assignment 2 Required":"gR: 250 A (690 V, 100 kA)","At Contactor For Auxiliary Contacts":"Screw-type terminals","operating frequency at AC-1 maximum":"1 000 1/s","With Type Of Coordination 1 Required":"gG: 250 A (690 V, 100 kA)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"7.3 W","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","number of NO contacts for main contacts":"4","reference code according to IEC 81346-2":"Q","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":"4","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Product Function Short Circuit Protection":"No","mirror contact according to IEC 60947-4-1":"Yes","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","Type Of Voltage Of The Control Supply Voltage":"AC","Limited To 1 S Switching At Zero Current Maximum":"Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"Use minimum cross-section acc. to AC-1 rated value","contact rating of auxiliary contacts according to UL":"A600 / P600","Of Main Circuit With Degree Of Pollution 3 Rated Value":"690 V","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"gG: 10 A (690 V, 1 kA)","minimum cross-section in main circuit at maximum AC-1 rated value":"35 mm²","Of The Auxiliary And Control Circuit With Degree Of Pollution 3 Rated Value":"690 V","Design Of The Miniature Circuit Breaker For Short-Circuit Protection Of The Auxiliary Switch Required":"gG: 10 A (230 V, 400 A)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/589d2506d1b6308a8f97adbcbc16094e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629962&mlfb=3RT2344-1AF00"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3RT2344-1AF00?","answer":"Submit an RFQ through this listing. The part is sourced and quoted to order; availability and current pricing are confirmed at quote time."},{"question":"What is 3RT2344-1AF00's listed depth?","answer":"The depth is 152 mm."},{"question":"What conductor sizes does the 3RT2344-1AF00 accept?","answer":"Main circuit terminals accept stranded conductors from 6 to 70 mm². Auxiliary and coil terminals accept solid conductors 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²)."},{"question":"Will 3RT2344-1AF00 drop into a panel specified around 3RT2326-1BK80 without rewiring?","answer":"Both are SIRIUS contactors, but the 3RT2326-1BK80 is a different size and rating class. The 3RT2344-1AF00 is a size S3; verify the mounting footprint, terminal lug range, and coil voltage match before assuming a drop-in replacement. The 3RT2344-1AF00 uses an AC coil, while the peer may differ — check the existing panel's control voltage."},{"question":"What compliance documentation does Siemens provide for 3RT2344-1AF00?","answer":"As a SIRIUS-branded product, Siemens typically provides a declaration of conformity to IEC/EN 60947-4-1, along with RoHS and REACH compliance statements. Specific documentation is available on request with an RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2344-1AF00","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/3RT2344-1AF00 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}