{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2046-3AR60","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2046-3AR60","canonicalUrl":"https://aoctrl.com/siemens/3RT2046-3AR60","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2046-3AR60","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT2046-3AR60, size S3, screw and snap-on mounting onto 35 mm DIN rail, spring-type coil terminals, 20 hp at 400 V.","salesMarkdown":"It mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715, and its mounting position allows +/-180° rotation on a vertical surface plus +/-22.5° tilt forward/backward, giving panel builders flexibility in tight enclosures. The contactor carries a 20 hp rating at 400 V, which is the motor horsepower figure that governs its selection for three-phase induction motor duty. It is rated for AC-3 switching at up to 850 operating cycles per hour, matching the duty cycle of conveyors, pumps, and compressors. The 20 hp at 400 V rating is the headline motor-switching capacity — this contactor is sized for a 20 hp, 400 V three-phase induction motor in AC-3 duty (starting and stopping under load). The AC-3 switching frequency of 850 cycles/hour means it can handle frequent starts typical of a conveyor or compressor without overheating. For resistive loads (AC-1), the contactor is rated at 900 cycles/hour. For plugging or inching duty (AC-4), the rate drops to 250 cycles/hour — a real constraint if the application involves reversing or jogging. The auxiliary contact block is present and carries its own voltage-dependent current ratings: 10 A at 24 V, 2 A at 48 V, 2 A at 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, 3 A at 400 V, and 0.8 A at 440 V (-). These are the maximum currents the auxiliary contacts can break at those voltages — important for control circuit design. The contactor is rated for 50/60 Hz operation with a power factor of 0.35 at 50 Hz and 0.41 at 60 Hz — these are the load power factors the contactor is designed to switch, not the coil draw. ## Wiring and Panel Integration The main power terminals accept solid conductors from 2.5 to 16 mm² and stranded conductors from 6 to 70 mm². The coil terminals are spring-type, accepting 2x (0.5 to 2.5 mm²) solid or stranded. This is a mixed termination scheme — spring-cage for the coil, screw-type for the main poles — so the wireman needs both a screwdriver and a spring-release tool. Physical dimensions: 70 mm wide, 140 mm high, 152 mm deep. These clearances are for arc flash and heat dissipation — not just mechanical fit. The contactor has 10 main contacts and an arcing time of 10 to 20 ms, with a switching time at AC of 10 to 21 ms. Because it is active and widely used, there is no pressure to find a substitute. The closest functional peer in the SIRIUS family would be a different frame size or coil voltage variant — but the 3RT2046-3AR60 is the specific S3, 20 hp at 400 V configuration. If you are sourcing for a panel that was specified around a smaller SIRIUS contactor like the 3RT2027-1AP60, the 3RT2046-3AR60 is a larger frame (S3 vs S0) and will not drop in without panel rework — different footprint, different terminal spacing.","metaTitle":"Siemens 3RT2046-3AR60 SIRIUS Power Contactor, S3, 20 hp at 4","metaDescription":"Siemens 3RT2046-3AR60 SIRIUS power contactor, size S3, 20 hp at 400 V, screw and snap-on DIN rail mount, spring-type coil terminals, current lifecycle stage.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"152 mm","Solid":"2.5 ... 16 mm²","Width":"70 mm","at AC":"10 ... 21 ms","Height":"140 mm","Upwards":"10 mm","Forwards":"20 mm","Stranded":"6 ... 70 mm²","at 50 Hz":"0.35","at 60 Hz":"0.41","Downwards":"10 mm","Arcing Time":"10 ... 20 ms","At The Side":"10 mm","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Spring-type terminals","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","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","at AC-3e maximum":"850 1/h","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 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Power 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":"20 hp","at 400 V rated value":"3 A","at 440 V rated value":"0.8 A","at 480 V rated value":"96 A","at 50 Hz rated value":"400 V","at 500 V rated value":"2 A","at 60 Hz rated value":"400 ... 440 V","at 600 V rated value":"77 A","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","at 1000 V rated value":"37 kW","For Auxiliary Contacts":"20 ... 14","For Main Current Circuit":"screw-type terminals","at 110/120 V rated value":"10 hp","at 200/208 V rated value":"30 hp","at 220/230 V rated value":"30 hp","at 460/480 V rated value":"75 hp","at 575/600 V rated value":"75 hp","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"8 kV","at AC-3 rated value maximum":"1 000 V","at AC in hot operating state":"19.8 W","at AC-2 at 400 V rated value":"45 kW","at AC-3e rated value maximum":"1 000 V","at AC-4 at 400 V rated value":"80 A","safety-related switching OFF":"Yes","Substance Prohibitance (Date)":"03/01/2017","Of Auxiliary Circuit Rated Value":"6 kV","at AC-5a up to 690 V rated value":"114 A","at AC-5b up to 400 V rated value":"95 A","For Auxiliary And Control Circuit":"spring-loaded terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 160 A (690 V, 100 kA), aM: 100 A (690 V, 100 kA), BS88: 125 A (415 V, 80 kA)","Without Load Current Share Typical":"25 W","At Contactor For Auxiliary Contacts":"Spring-type terminals","With Type Of Coordination 1 Required":"gG: 250 A (690 V, 100 kA), aM: 160 A (690 V, 100 kA), BS88: 200 A (415 V, 80 kA)","at AWG cables for auxiliary contacts":"2x (20 ... 16)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"6.6 W","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)","Number Of Poles For Main Current Circuit":"3","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","mirror contact according to IEC 60947-4-1":"Yes","with low demand rate according to SN 31920":"40 %","Finely Stranded Without Core End Processing":"2x (0.5 ... 2.5 mm²)","with high demand rate according to SN 31920":"73 %","Type Of Voltage Of The Control Supply Voltage":"AC","Limited To 1 S Switching At Zero Current Maximum":"1 725 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"1 297 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"946 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"610 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"486 A; 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":"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","number of NC contacts for auxiliary contacts instantaneous contact":"1","number of NO contacts for auxiliary contacts instantaneous contact":"1","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":"https://cdn.aoctrl.com/7d28fa7380658c541019ac8751bc4da6.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629910&mlfb=3RT2046-3AR60","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2046-3AR60/alternatives.json"},"ai":{"faq":[{"question":"Will the 3RT2046-3AR60 drop into a panel designed for a 3RT2027-1AP60?","answer":"No. The 3RT2046-3AR60 is size S3, while the 3RT2027-1AP60 is a smaller frame size (S0). The physical dimensions differ — the S3 is 70 mm wide, 140 mm high, 152 mm deep — so it will not fit the same DIN rail footprint or terminal layout without panel rework."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2046-3AR60","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/3RT2046-3AR60 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}}