{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT5046-1AG20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT5046-1AG20","canonicalUrl":"https://aoctrl.com/siemens/3RT5046-1AG20","factsUrl":"https://aoctrl.com/api/mcp/products/3RT5046-1AG20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S3 power contactor, 3RT5046-1AG20, screw-type terminals, 70 mm width, AC-3e rated to 1000 V, 38 kW at 230 V 60°C.","salesMarkdown":"The Siemens 3RT5046-1AG20 is a SIRIUS S3 power contactor with screw-type terminals for the main current circuit, sized for motor loads up to 38 kW at 230 V or 66 kW at 400 V (at 60 °C ambient). It carries a rated insulation voltage of 1,000 V and an AC-3e maximum operating voltage of 1,000 V, so it handles 400 V and 690 V industrial networks without derating the insulation. The S3 frame is the mid-range size in the SIRIUS contactor family — wide enough for the power terminals to accept 2x 16 mm² solid/stranded or 2x 1/0 AWG, but still compact enough for a 70 mm DIN-rail footprint. Side-by-side mounting is supported — no gap required between contactors on the rail, which saves panel width when grouping multiple motor starters. ## Switching performance and thermal limits Rated for 5,000 operating cycles per hour at AC, with a maximum of 900/h in AC-1 duty, 850/h in AC-3 and AC-3e, and 250/h in AC-4. ## Auxiliary contact ratings and coil data Auxiliary contacts are rated 6 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 1 A at 110 V (50/60 Hz). The 220 V rating drops to 0.3 A. These values govern what the aux contacts can switch in control circuits — a 24 VDC PLC output driving the contactor coil, for example, sees a 6 A make/break capability, which is generous for a standard relay interface. The coil draws 0.29 A at both 50 Hz and 60 Hz at 110 V rated value.","metaTitle":"Siemens 3RT5046-1AG20 SIRIUS Power Contactor, S3, 70 mm","metaDescription":"Siemens 3RT5046-1AG20 SIRIUS S3 power contactor, screw terminals, 70 mm width. AC-3e rated 1000 V, 38 kW at 230 V 60°C. Active production, sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"139 mm","Width":"70 mm","at AC":"5 000 1/h","title":"3RT5046-1AG20","Height":"146 mm","at 50 Hz":"0.29","at 60 Hz":"0.29","description":"Contactor AC 110 V 50/60 HZ AC3 45 kW 400 V 3-pole, size S3, screw terminal","During Storage":"-55 ... +80 °C","at AC-1 maximum":"900 1/h","at AC-3 maximum":"850 1/h","at AC-4 maximum":"250 1/h","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm and 75 mm standard mounting rail","at AC-3e maximum":"850 1/h","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 (2.5 ... 16 mm²)","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"Power contactor","at 24 V rated value":"6 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 50 Hz rated value":"110 V","at 60 Hz rated value":"110 V","at 690 V rated value":"25.4 kW","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-3e rated value maximum":"1 000 V","Substance Prohibitance (Date)":"03/01/2017","at 40 °C minimum permissible":"50 mm²","at 60 °C minimum permissible":"35 mm²","Insulation Voltage Rated Value":"1 000 V","at 230 V at 60 °C rated value":"38 kW","at 400 V at 60 °C rated value":"66 kW","at 690 V at 60 °C rated value":"114 kW","at AWG cables for main contacts":"2x (10 ... 1/0)","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","With Type Of Assignment 2 Required":"fuse gL/gG: 160 A","Surge Voltage Resistance Rated Value":"6 kV","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","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","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","at ambient temperature 40 °C rated value":"120 A","at ambient temperature 60 °C rated value":"100 A","Finely Stranded Without Core End Processing":"2x (10 ... 35 mm²)","Type Of Voltage Of The Control Supply Voltage":"AC","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","number of NC contacts for auxiliary contacts instantaneous contact":"0","number of NO contacts for auxiliary contacts instantaneous contact":"0"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/88186c38450ab098cb25618a69914cf8.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=580045&mlfb=3RT5046-1AG20"},"ai":{"faq":[{"question":"Where can I buy 3RT5046-1AG20 and how do I get a price?","answer":"This part is sourced to order through independent distribution. Submit an RFQ for current pricing and delivery — availability is confirmed at quote time."},{"question":"What are the key ratings of 3RT5046-1AG20?","answer":"It is a SIRIUS S3 power contactor with screw terminals, rated insulation voltage 1,000 V, AC-3e maximum operating voltage 1,000 V, and motor power 38 kW at 230 V 60 °C. Dimensions are 146 mm height, 70 mm width, 139 mm depth."},{"question":"What compliance documentation does Siemens provide for 3RT5046-1AG20?","answer":"The part meets RoHS and REACH substance restrictions with a prohibitance date of March 1, 2017. The SIRIUS series is certified under IEC 60947-4-1 and UL 508; a downloadable EU declaration of conformity is available from the manufacturer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT5046-1AG20","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/3RT5046-1AG20 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}}