{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2023-2BB44","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2023-2BB44","canonicalUrl":"https://aoctrl.com/siemens/3RT2023-2BB44","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2023-2BB44","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, Size S0, 24 VDC coil, 6 A rated operating current, spring-type terminals, screw and snap-on 35 mm DIN rail mounting, 45 x 102 x 154 mm.","salesMarkdown":"The 24 VDC coil draws a rated operating current of 6 A, with a pickup threshold of 0.8 x rated voltage and a dropout below that. Spring-type terminals accept solid or stranded conductors from 1 to 10 mm², with dual-wire capability for 2x (0.5 to 2.5 mm²). ## Coil and switching ratings Coil ratings at 24 VDC: 6 A. At higher DC voltages the current drops — 2 A at 48 V or 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, and 3 A at 400 V. The AC-3 motor switching rating supports up to 1 000 operating cycles per hour, while AC-4 (inching/jogging) is limited to 300 cycles per hour. Mechanical life is typical 10 000 000 operations. The Size S0 footprint (45 mm wide, 102 mm tall, 154 mm deep) fits standard DIN-rail enclosures. Spring terminals reduce wiring time versus screw terminals — strip length for solid/stranded is 10 mm. No special tooling needed beyond a screwdriver for the spring release.","metaTitle":"Siemens 3RT2023-2BB44 SIRIUS Power Contactor, 24 VDC Coil, 6","metaDescription":"Siemens SIRIUS 3RT2023-2BB44 power contactor, Size S0, 24 VDC coil rated 6 A, spring-type terminals, screw and snap-on DIN rail mount. Current production. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"154 mm","Solid":"1 ... 10 mm²","Width":"45 mm","at DC":"15 ... 18 ms","title":"3RT2023-2BB44","Height":"102 mm","Upwards":"10 mm","Forwards":"10 mm","Stranded":"1 ... 10 mm²","Downwards":"10 mm","Arcing Time":"10 ... 10 ms","At The Side":"6 mm","Rated Value":"24 V","description":"power contactor, AC-3e/AC-3, 9 A, 4 kW / 400 V, 3-pole, 24 V DC, auxiliary contacts: 2 NO + 2 NC, spring-loaded terminal, size: S0, removable auxiliary switch","Initial Value":"0.8","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Spring-type terminals","at AC-1 maximum":"1 000 1/h","at AC-2 maximum":"1 000 1/h","at AC-3 maximum":"1 000 1/h","at AC-4 maximum":"300 1/h","lifecycle_stage":"current","Auxiliary Switch":"No","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715","Full-Scale Value":"1.1","at AC-3e maximum":"1 000 1/h","For Main Contacts":"18 ... 8","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":"S0","Solid Or Stranded":"2x (0.5 ... 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":"1 hp","at 400 V rated value":"3 A","at 440 V rated value":"0.6 A","at 480 V rated value":"7.6 A","at 500 V rated value":"2 A","at 600 V rated value":"9 A","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","For Auxiliary Contacts":"20 ... 14","For Main Current Circuit":"spring-loaded terminals","at 110/120 V rated value":"1 hp","at 200/208 V rated value":"2 hp","at 220/230 V rated value":"3 hp","at 460/480 V rated value":"5 hp","at 575/600 V rated value":"7.5 hp","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"6 kV","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"0.6 W","at AC-3e rated value maximum":"690 V","at AC-4 at 400 V rated value":"8.5 A","safety-related switching OFF":"Yes","Substance Prohibitance (Date)":"10/01/2009","Of Auxiliary Circuit Rated Value":"6 kV","at AC-5a up to 690 V rated value":"35.2 A","at AC-5b up to 400 V rated value":"7.4 A","For Auxiliary And Control Circuit":"spring-loaded terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 25A (690V,100kA), aM: 20A (690V,100kA), BS88: 25A (415V,80kA)","Without Load Current Share Typical":"5.9 W","closing power of magnet coil at DC":"5.9 W","holding power of magnet coil at DC":"5.9 W","At Contactor For Auxiliary Contacts":"Spring-type terminals","With Type Of Coordination 1 Required":"gG: 63A (690V,100kA), aM: 32A (690V,100kA), BS88: 63A (415V,80kA)","at AWG cables for auxiliary contacts":"2x (20 ... 14)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"0.2 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":"DC","Limited To 1 S Switching At Zero Current Maximum":"170 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"170 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"140 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"104 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"88 A; Use minimum cross-section acc. to AC-1 rated value","contact rating of auxiliary contacts according to UL":"A600 / Q600","Of Main Circuit With Degree Of Pollution 3 Rated Value":"690 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":"10 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/c397da4cbdb16de6e624795fc8bbef51.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=39041&mlfb=3RT2023-2BB44"},"ai":{"faq":[{"question":"What are the key ratings for 3RT2023-2BB44?","answer":"24 VDC coil rated 6 A, Size S0 frame, spring-type terminals accepting 1–10 mm² wire, switching frequency up to 1000 cycles/hour for AC-3 duty, mechanical life 10 million operations."},{"question":"Where can I buy 3RT2023-2BB44 and get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for quotation — current pricing and availability are confirmed at quote time."},{"question":"Does 3RT2023-2BB44 have an auxiliary switch built in?","answer":"No, the base contactor has no auxiliary switch. You need to add a separate auxiliary contact block if your circuit requires feedback or signaling."},{"question":"What wire sizes does the spring terminal accept?","answer":"Solid or stranded conductors from 1 to 10 mm², with dual-wire capability for 2x (0.5 to 2.5 mm²)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2023-2BB44","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/3RT2023-2BB44 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}}