{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2015-1FB44-3MA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2015-1FB44-3MA0","canonicalUrl":"https://aoctrl.com/siemens/3RT2015-1FB44-3MA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2015-1FB44-3MA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2015-1FB44-3MA0 power contactor, S00 frame size, 24 V DC coil, screw-type terminals, 45 x 58 x 117 mm (WxHxD), snap-on DIN rail mounting.","salesMarkdown":"## S00 frame — panel density driver The 3RT2015-1FB44-3MA0: At 45 mm wide, 58 mm tall, and 117 mm deep, it fits tightly on a DIN rail — you can pack more contactors per meter of rail than the larger S0 or S2 frames. ## Coil drive and DC switching limits The magnet coil is rated 24 V DC with screw-type terminals. Pick-up voltage is 0.8 x rated (19.2 V DC), drop-out is 1.1 x rated (26.4 V DC) — so the coil holds in above 26.4 V and drops below 19.2 V. The DC dropout delay is 38 to 65 ms, which matters if you're sequencing contactors off a DC bus with capacitor hold-up. These are the make/break ratings for DC loads — inductive loads will need additional arc suppression at the higher voltages. Maximum switching rates depend on duty class: 1,000 operations/hour for AC-1 (resistive), 750/h for AC-2 and AC-3 (motor starting), and 250/h for AC-4 (plugging/inching). The AC-3e rating also caps at 750/h. For a conveyor line cycling a motor every 5 seconds, you're at 720/h — within the AC-3 limit, but with no margin for additional inching cycles. Mechanical endurance is 10 million operations typical. ## Termination and clearance planning No auxiliary switch is built in — if you need feedback to a PLC, plan for an external auxiliary contact block that snaps onto the front. In a typical 600 mm wide enclosure, you can fit about 12 of these side-by-side with the 6 mm gap, assuming no other components intrude. ## Environmental limits and sourcing The main contacts are rated for 20 to 12 A — the exact current depends on the duty class and ambient temperature, so derate above 60 °C per the Siemens application manual. Lifecycle stage is current production. Genuine is genuine, same part different passport.","metaTitle":"Siemens 3RT2015-1FB44-3MA0 SIRIUS Contactor, 24 V DC","metaDescription":"Siemens 3RT2015-1FB44-3MA0 SIRIUS power contactor, S00 frame, 24 V DC coil, screw terminals. Active production. Sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"117 mm","Solid":"0.5 ... 4 mm²","Width":"45 mm","at DC":"38 ... 65 ms","title":"3RT2015-1FB44-3MA0","Height":"58 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","description":"power contactor, AC-3e/AC-3, 7 A, 3 kW / 400 V, 3-pole, 24 V DC, with integrated diode, auxiliary contacts: 2 NO + 2 NC, screw terminal, size: S00, captive auxiliary switch","Initial Value":"0.8","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-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 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 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":"screw-type 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-2 at 400 V rated value":"3 kW","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","Design Of The Surge Suppressor":"diode","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":"screw-type 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":"Screw-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 ... 16), 2x (18 ... 14), 2x 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 ... 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":"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":"$31.75","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/444e12a62ac64d70e65a908a9039841b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=348660&mlfb=3RT2015-1FB44-3MA0"},"ai":{"faq":[{"question":"What is the closest alternative to 3RT2015-1FB44-3MA0 in the SIRIUS contactor family?","answer":"The S00 frame size and 24 V DC coil are specific to this order code. For a different coil voltage or auxiliary contact configuration, look at other 3RT2015 variants in the same S00 frame."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2015-1FB44-3MA0","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/3RT2015-1FB44-3MA0 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}}