{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2015-2BB44-3MA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2015-2BB44-3MA0","canonicalUrl":"https://aoctrl.com/siemens/3RT2015-2BB44-3MA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2015-2BB44-3MA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2015-2BB44-3MA0 power contactor, Size S00, 24 VDC coil, spring-type terminals, screw and snap-on 35 mm DIN rail mounting.","salesMarkdown":"The Siemens 3RT2015-2BB44-3MA0 is a SIRIUS power contactor in Size S00, meaning it's the compact frame for motor loads up to about 5.5 kW at 400 V AC-3. The 24 VDC coil pulls in reliably at 0.8 of rated voltage (19.2 V) and drops out cleanly; the spring-type terminals accept 0.5 to 4 mm² solid or stranded — no tool needed for the wire, just a screwdriver for the cage. It mounts via screw or snap-on onto 35 mm DIN rail per EN 60715, and the mounting position allows ±180° rotation on a vertical surface plus ±22.5° tilt forward/backward, so panel layout constraints rarely block it. The 24 VDC coil draws 6 A at rated value — that's the inrush to pull the armature in, not the hold current. Switching frequency tops out at 1 000 cycles/hour at AC-1 (resistive loads), drops to 750 at AC-3 (motor loads), and 250 at AC-4 (plugging/inching). For a conveyor start-stop cycle, 750 ops/hour is fine; for a rapid-reversing application, you'll hit the AC-4 ceiling. ## Mechanical fit and environment Dimensions: 45 mm wide, 70 mm high, 121 mm deep — the depth matters when the contactor sits behind a panel door with limited clearance. The spring-type terminals (solid or stranded 0.5 to 4 mm², or 2x 0.5 to 4 mm²) save wiring time compared to screw terminals, but verify the ferrule size if you're using stranded wire — the cage accepts ferruled ends fine.","metaTitle":"Siemens 3RT2015-2BB44-3MA0 SIRIUS Power Contactor, Size S00,","metaDescription":"Siemens SIRIUS 3RT2015-2BB44-3MA0 power contactor, Size S00, 24 VDC coil, spring-type terminals, 45 mm wide. Current production. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"121 mm","Solid":"0.5 ... 4 mm²","Width":"45 mm","at DC":"7 ... 13 ms","Height":"70 mm","Upwards":"10 mm","Forwards":"10 mm","Stranded":"0.5 ... 4 mm²","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"6 mm","Rated Value":"24 V","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":"750 1/h","at AC-3 maximum":"750 1/h","at AC-4 maximum":"250 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":"750 1/h","For Main Contacts":"20 ... 12","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":"S00","Solid Or Stranded":"2x (0,5 ... 4 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":"0.75 hp","at 400 V rated value":"3 A","at 440 V rated value":"0.14 A","at 480 V rated value":"4.8 A","at 500 V rated value":"2 A","at 600 V rated value":"6.1 A","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","For Auxiliary Contacts":"20 ... 12","For Main Current Circuit":"spring-loaded terminals","at 110/120 V rated value":"0.25 hp","at 200/208 V rated value":"1.5 hp","at 220/230 V rated value":"2 hp","at 460/480 V rated value":"3 hp","at 575/600 V rated value":"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":"6.5 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":"15.8 A","at AC-5b up to 400 V rated value":"5.8 A","For Auxiliary And Control Circuit":"spring-loaded terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 20A (690V,100kA), aM: 16A (690V, 100kA), BS88: 20A (415V, 80kA)","Without Load Current Share Typical":"4 W","closing power of magnet coil at DC":"4 W","holding power of magnet coil at DC":"4 W","At Contactor For Auxiliary Contacts":"Spring-type terminals","With Type Of Coordination 1 Required":"gG: 35A (690V,100kA), aM: 20A (690V,100kA), BS88: 35A (415V,80kA)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"0.2 W","for AWG cables for auxiliary contacts":"2x (20 ... 12)","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 ... 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 %","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":"120 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"86 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"67 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"52 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"43 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":"2.5 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":"$27.94","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3e3fdc7cab0d9a1f92a66119c029a7a9.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=36836&mlfb=3RT2015-2BB44-3MA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2015-2BB44-3MA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT2015-2BB44-3MA0 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"Will 3RT2015-2BB44-3MA0 drop into a panel specified around 3RT2015-2BF42?","answer":"Both are Size S00 SIRIUS contactors with the same 45 mm width, 70 mm height, and 121 mm depth, and both mount on 35 mm DIN rail. The main difference is the coil voltage — this one is 24 VDC, the 2BF42 is typically 24 VAC. If the panel was wired for AC coil control, the DC coil won't work without a rectifier or a different control transformer tap. Mechanical fit is identical; electrical compatibility depends on the control circuit."},{"question":"What is the depth of 3RT2015-2BB44-3MA0?","answer":"121 mm depth, with 45 mm width and 70 mm height. The 121 mm includes the coil and terminal projection — check panel door clearance if mounting near a shallow enclosure."},{"question":"What wire sizes does the spring terminal accept?","answer":"Solid or stranded 0.5 to 4 mm² per terminal, or 2x 0.5 to 4 mm² for paralleled conductors. Spring-cage type — strip length around 8 to 10 mm, push the wire in until it seats."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2015-2BB44-3MA0","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/3RT2015-2BB44-3MA0 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}}