{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1046-1XF40-0LA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1046-1XF40-0LA2","canonicalUrl":"https://aoctrl.com/siemens/3RT1046-1XF40-0LA2","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1046-1XF40-0LA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1046-1XF40-0LA2, S3 frame power contactor, 110 VDC coil, screw-type terminals, screw and snap-on mounting for 35 mm and 75 mm rail.","salesMarkdown":"## SIRIUS S3 power contactor — 110 VDC coil, screw terminals Rated switching frequency varies sharply by duty: 900 operations per hour at AC-1 (resistive), 850 at AC-3 (squirrel-cage motor start/run), 350 at AC-2 (slip-ring motor), and 250 at AC-4 (plugging/inching). For a conveyor or pump running continuous AC-3 duty, that 850 cycles/hour headroom is generous — the thermal limit on the contactor, not the coil, is what governs here. Motor power ratings reach 55 kW at 500 V and 25.4 kW at 690 V, so it handles European 400 V motors comfortably and steps up to 690 V industrial networks without derating the frame. Dimensions are 176 mm high, 70 mm wide, 152 mm deep — the S3 frame is a standard footprint across the SIRIUS contactor family. Side-by-side mounting is permitted with zero spacing, which saves rail length in dense panels. The clamping range covers everything from signal-level wiring to full motor cable cross-sections without adapter lugs. These are the minimum air gaps to maintain rated insulation — useful when laying out a row of contactors on a DIN rail to avoid arc tracking.","metaTitle":"Siemens 3RT1046-1XF40-0LA2 SIRIUS Power Contactor, 110 VDC c","metaDescription":"Siemens SIRIUS 3RT1046-1XF40-0LA2 power contactor, 110 VDC coil, S3 frame size, screw terminals, snap-on DIN rail mounting. Current lifecycle stage. Available to order — request qu","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"152 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"70 mm","at DC":"14 ... 20 ms","Height":"176 mm","Upwards":"10 mm","Forwards":"20 mm","Stranded":"2x (10 ... 50 mm²)","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"10 mm","Rated Value":"110 V","Initial Value":"0.7","During Storage":"-55 ... +80 °C","at AC-1 maximum":"900 1/h","at AC-2 maximum":"350 1/h","at AC-3 maximum":"850 1/h","at AC-4 maximum":"250 1/h","lifecycle_stage":"current","During Operation":"-40 ... +70 °C","Fastening Method":"screw and snap-on mounting onto 35 mm and 75 mm standard mounting rail","Full-Scale Value":"1.25","Size Of Contactor":"S3","Solid Or Stranded":"2x (2.5 ... 16 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Power contactor","at 24 V rated value":"10 A","at 60 V rated value":"2 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.3 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 500 V rated value":"55 kW","at 690 V rated value":"25.4 kW","Instantaneous Contact":"0","Side-By-Side Mounting":"Yes","at 1000 V rated value":"37 W","For Main Current Circuit":"screw-type terminals","at maximum AC-1 rated value":"50 mm²","at AC-2 at 400 V rated value":"45 kW","at AC-4 at 400 V rated value":"80 A","Substance Prohibitance (Date)":"05/01/2012","Design Of The Surge Suppressor":"with varistor","at AWG cables for main contacts":"2x (10 ... 1/0)","For Auxiliary And Control Circuit":"screw-type terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"fuse gL/gG: 160 A","closing power of magnet coil at DC":"19 W","holding power of magnet coil at DC":"12 W","With Type Of Coordination 1 Required":"fuse gL/gG: 250 A","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","operational current at AC-12 maximum":"10 A","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","Finely Stranded Without Core End Processing":"2x (10 ... 35 mm²)","Type Of Voltage Of The Control Supply Voltage":"DC","contact rating of auxiliary contacts according to UL":"A600 / Q600","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":"fuse gL/gG: 10 A","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"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=38486&mlfb=3RT1046-1XF40-0LA2","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1046-1XF40-0LA2/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1046-1XF40-0LA2","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/3RT1046-1XF40-0LA2 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}}