{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2448-1AF00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2448-1AF00","canonicalUrl":"https://aoctrl.com/siemens/3RT2448-1AF00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2448-1AF00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2448-1AF00 contactor, size S3, 70 mm width, 152 mm depth, screw-type AC coil terminals, screw and snap-on mounting onto 35 mm DIN rail.","salesMarkdown":"It mounts with screws or snaps onto standard 35 mm DIN rail per DIN EN 60715, and the mounting position is flexible — you can rotate it 180° on a vertical surface or tilt it forward and backward by 22.5° for tight enclosures. The AC coil uses screw-type terminals, and the power circuit accepts stranded conductors from 6 mm² up to 70 mm² — heavy enough for the main feed on a moderate motor branch. The auxiliary side handles solid wire 0.5 to 1.5 mm² or stranded 0.75 to 2.5 mm². ## Clearance and fit in the panel At 70 mm wide, 140 mm tall, and 152 mm deep, this contactor takes up a standard S3 footprint. Side-by-side mounting is allowed, with 10 mm clearance needed at the sides, 10 mm upwards, 20 mm forwards, and 10 mm downwards. That 152 mm depth is the dimension you'll need to account for behind the panel door — it's the deepest number in the envelope. ## Switching capacity and ratings Rated for AC operation, the contactor's main contacts switch 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V. At 690 V it's rated at 1 A. Arcing time runs 10 to 20 ms; the magnet coil operates on AC voltage at 50 Hz with a power factor of 0.38. Mechanical life is typical at 10 million operations — that's the contactor itself, not the contacts under load.","metaTitle":"Siemens 3RT2448-1AF00 SIRIUS Contactor, 70 mm, AC Coil","metaDescription":"Siemens 3RT2448-1AF00 SIRIUS contactor, size S3. Screw & snap-on 35 mm DIN rail. AC coil. 6-70 mm² stranded. 10 A at 24 V. Active production, 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":"70 mm","at AC":"10 ... 21 ms","title":"3RT2448-1AF00","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, 160 A, 690 V / 40 °C, 3-pole, 110 V AC, 50 Hz, auxiliary contacts: 1 NO + 1 NC, main circuit: box terminal, control and auxiliary circuit: 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","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":"2 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 Main Current Circuit":"box terminal","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"8 kV","at AC in hot operating state":"38.4 W","Substance Prohibitance (Date)":"03/01/2017","Of Auxiliary Circuit Rated Value":"6 kV","For Auxiliary And Control Circuit":"screw-type terminals","Function Module For 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":"650 1/h","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":"12.8 W","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","number of NC contacts for main contacts":"0","number of NO contacts for main contacts":"3","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":"3","Type Of Voltage For Main Current Circuit":"AC","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","with low demand rate according to SN 31920":"40 %","with high demand rate according to SN 31920":"73 %","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","Of Main Circuit With Degree Of Pollution 3 Rated Value":"1 000 V","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","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":"gG: 10 A (500 V, 1 kA)","minimum cross-section in main circuit at maximum AC-1 rated value":"70 mm²","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000","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/b565132adc8ca4f5501331a77657e7cf.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=630075&mlfb=3RT2448-1AF00"},"ai":{"faq":[{"question":"Where can I buy the 3RT2448-1AF00 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at the time of quote — submit an RFQ for a firm number."},{"question":"What are the key dimensions of the 3RT2448-1AF00?","answer":"The contactor measures 70 mm wide, 140 mm high, and 152 mm deep. It requires 10 mm clearance at the sides, 10 mm upwards, 20 mm forwards, and 10 mm downwards for proper ventilation and arc containment."},{"question":"What wire sizes does the 3RT2448-1AF00 accept?","answer":"The power terminals accept stranded conductors from 6 mm² up to 70 mm². The auxiliary terminals accept solid wire 2x (0.5 to 1.5 mm²) or stranded 2x (0.75 to 2.5 mm²)."},{"question":"Will the 3RT2448-1AF00 drop into a panel specified for a 3RT2536-1AF00?","answer":"Both are SIRIUS size S3 contactors with the same 70 mm width and DIN-rail mounting, so the footprint and rail position are identical. The main difference is the coil voltage — the 3RT2448-1AF00 uses an AC coil, while the 3RT2536-1AF00 uses a different coil type. Verify coil voltage compatibility before swapping, but the mechanical fit is the same."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2448-1AF00","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/3RT2448-1AF00 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}}