{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2046-1CB04-3MA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2046-1CB04-3MA0","canonicalUrl":"https://aoctrl.com/siemens/3RT2046-1CB04-3MA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2046-1CB04-3MA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2046-1CB04-3MA0 power contactor, S3 frame, 96 A at 480 V AC-3, screw terminals, auxiliary switch, 70 mm width, 195 mm depth, DIN rail mount.","salesMarkdown":"## S3 frame contactor — panel fit and wiring The 3RT2046-1CB04-3MA0 is a SIRIUS S3 frame power contactor, 70 mm wide and 195 mm deep — that depth is the dimension behind the panel face, so budget at least 200 mm enclosure depth for the coil terminals and arc chamber clearance. Mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715. The mounting position allows +/-180° rotation on a vertical surface and +/-22.5° tilt forward/backward, which gives flexibility in crowded panels where the rail orientation isn't ideal. Power wiring accepts stranded conductors from 6 to 70 mm² — that covers most motor branch circuits up to 96 A. The auxiliary switch is built in, so you don't need a separate add-on for feedback to the PLC. ## AC-3 motor switching — 96 A at 480 V Rated 96 A at 480 V in AC-3 duty — that's the motor switching current for squirrel-cage motors during starting and running. At 230 V it's rated 20 hp, which gives a quick horsepower cross-check for North American panel schedules. Maximum operating rate in AC-3 is 850 switching cycles per hour; AC-4 (plugging/reversing) drops to 250 cycles/hour. The mechanical life is 10 million operations typical, so the contactor outlasts most motor rewinds in cyclic duty. Coil connections use screw-type terminals — no push-in or spring-cage on the magnet coil. The control voltage variant is baked into the order code suffix; this unit is configured for the voltage specified in the full 3RT2046-1CB04-3MA0 designation. ## Thermal and clearance envelope Operating ambient range is -25 to +60 °C — the 60 °C ceiling means the contactor can sit in a non-ventilated enclosure near the top of a panel without derating, as long as the internal temperature stays under that limit. Storage range is -55 to +80 °C. Minimum clearances: 10 mm upwards, 10 mm downwards, 20 mm forwards, 10 mm to the side. The 20 mm forward clearance is the tightest — that's the arc chamber direction, so don't crowd the front face against a door or busbar. Arcing time is 10-20 ms at AC, and the make/close time is 10-21 ms at AC — both typical for a contactor this size. The switching frequency limits (900/h AC-1, 850/h AC-3, 250/h AC-4) govern the duty cycle for conveyor indexing or compressor cycling applications.","metaTitle":"Siemens 3RT2046-1CB04-3MA0 SIRIUS Contactor, 96 A at 480 V","metaDescription":"Siemens 3RT2046-1CB04-3MA0 SIRIUS power contactor, S3 frame, 96 A at 480 V AC-3. Screw terminals, auxiliary switch, DIN rail mount.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"195 mm","Solid":"2.5 ... 16 mm²","Width":"70 mm","at AC":"10 ... 21 ms","title":"3RT2046-1CB04-3MA0","Height":"140 mm","Upwards":"10 mm","Forwards":"20 mm","Stranded":"6 ... 70 mm²","at 50 Hz":"0.38","Downwards":"10 mm","Arcing Time":"10 ... 20 ms","At The Side":"10 mm","description":"power contactor, AC-3e/AC-3, 95 A, 45 kW / 400 V, 3-pole, 24 V AC, 50 Hz, with plugged-in varistor, auxiliary contacts: 2 NO + 2 NC, screw terminal, size: S3, captive auxiliary switch","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-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 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Power contactor","at 24 V rated value":"6 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":"24 V","at 500 V rated value":"2 A","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","Safety-Related Switching On":"Yes","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","Design Of The Surge Suppressor":"with varistor","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":"screw-type 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":"19 W","At Contactor For Auxiliary Contacts":"Screw-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), 2x (18 ... 14)","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), 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)","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 %","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":"2","number of NO contacts for auxiliary contacts instantaneous contact":"2","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"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=629883&mlfb=3RT2046-1CB04-3MA0"},"ai":{"faq":[{"question":"What is the AC-3 current rating of 3RT2046-1CB04-3MA0 at 480 V?","answer":"96 A at 480 V in AC-3 duty. That's the motor switching current for starting and running squirrel-cage induction motors up to that load."},{"question":"What wire sizes does 3RT2046-1CB04-3MA0 accept for power connections?","answer":"Stranded conductors from 6 mm² up to 70 mm². The control circuit terminals accept 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid or stranded wire."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2046-1CB04-3MA0","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/3RT2046-1CB04-3MA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}