{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2446-1AF00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2446-1AF00","canonicalUrl":"https://aoctrl.com/siemens/3RT2446-1AF00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2446-1AF00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2446-1AF00 contactor, size S3, 110 V 50 Hz AC coil, screw-type terminals, 6–70 mm² main circuit wiring, 1 NO + 1 NC auxiliary contact.","salesMarkdown":"## SIRIUS S3 contactor — 110 VAC coil, 6–70 mm² power wiring This is a Siemens SIRIUS 3RT2446-1AF00 contactor in frame size S3, with a 110 V 50 Hz AC coil terminated via screw-type terminals. The main power circuit accepts stranded conductors from 6 to 70 mm², covering the range from moderate motor feeds up to a 70 mm² incoming cable. The auxiliary contact block carries one instantaneous normally-open contact, and the contactor is also equipped with an auxiliary switch — check the specific NO/NC count against your control scheme. The coil draws 10 A at 24 V rated value, stepping down to 0.1 A at 600 V rated value, so the control transformer sizing follows the inrush at the pick-up voltage. ## Panel layout — DIN rail, clearances, and side-by-side mounting Mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715. The envelope is 70 mm wide, 140 mm high, 152 mm deep — the depth dimension is the critical one for enclosure depth selection. Side-by-side mounting is permitted, so you can gang multiple contactors on the same rail without forced spacing. Clearance distances: 10 mm upwards and downwards, 10 mm at the sides, 20 mm forwards. The mounting position allows ±180° rotation on a vertical surface and ±22.5° tilt forward/backward — useful when the panel layout forces an unconventional orientation. Operating temperature range is -25 to +60 °C, storage from -55 to +80 °C. The arcing time is 10–20 ms, and the mechanical endurance is rated at 10 million typical operations — a solid baseline for high-cycle applications like conveyor or pump control. ## Switching capacity across the voltage range The contactor's rated switching current varies with the applied voltage. At 24 V it switches 10 A; at 230 V it handles 6 A; at 400 V it is rated for 3 A; at 690 V it drops to 1 A. For DC circuits, at 48 V and 60 V it is rated 2 A, stepping down to 0.1 A at 600 V. These figures define the load envelope — match them against your motor full-load current and the voltage class of the circuit. The coil's power factor at 50 Hz is 0.38 — a relatively low figure that means the coil draws more apparent power than its real power consumption suggests. Factor this into the control transformer VA rating, especially when multiple contactors pick up simultaneously. ## Sourcing and lifecycle — current production, quoted to order The auxiliary terminals accept 2x (0.5–1.5 mm²) solid or 2x (0.75–2.5 mm²) stranded wire — the same spec applies to the coil terminals. This covers standard control wiring up to 2.5 mm², which is adequate for most 110 VAC control circuits within a panel.","metaTitle":"Siemens 3RT2446-1AF00 SIRIUS Contactor, S3, 110 VAC Coil","metaDescription":"Siemens 3RT2446-1AF00 SIRIUS contactor, size S3, 110 V 50 Hz AC coil. Screw terminals, 6–70 mm² power wiring. Current production, quoted to order. Request RFQ.","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":"3RT2446-1AF00","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, 140 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":"29.4 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":"9.8 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":"50 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=630062&mlfb=3RT2446-1AF00"},"ai":{"faq":[{"question":"What is the 3RT2446-1AF00's depth for enclosure sizing?","answer":"The depth is 152 mm. With the required 20 mm forward clearance, the minimum enclosure depth is 172 mm from the DIN rail mounting surface to the door or cover."},{"question":"What wire sizes does the 3RT2446-1AF00 accept on the main power terminals?","answer":"The main circuit terminals accept stranded conductors from 6 mm² up to 70 mm². The auxiliary and coil terminals accept 2x (0.5–1.5 mm²) solid or 2x (0.75–2.5 mm²) stranded wire."},{"question":"Will the 3RT2446-1AF00 replace a 6ES7517-3FP00-0AB0 in the same panel?","answer":"No — the 6ES7517-3FP00-0AB0 is a Siemens S7-1500 CPU module, a completely different product class. The 3RT2446-1AF00 is a contactor and cannot drop into a PLC rack slot. No cross-reference or functional replacement relationship exists between these two order codes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2446-1AF00","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/3RT2446-1AF00 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}}