{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2016-2BB44-3MA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2016-2BB44-3MA0","canonicalUrl":"https://aoctrl.com/siemens/3RT2016-2BB44-3MA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2016-2BB44-3MA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, power contactor, 3RT2016-2BB44-3MA0, Size S00, 24 V DC coil, spring-type terminals, 45 mm width, 121 mm depth.","salesMarkdown":"The Siemens SIRIUS 3RT2016-2BB44-3MA0 is a Size S00 power contactor with a 24 V DC coil and spring-type terminals, built for snap-on mounting onto 35 mm DIN rail per DIN EN 60715. It occupies 45 mm of rail width and 121 mm depth, so it fits standard panel layouts without extra spacing. The coil is rated 24 V DC with a pick-up value of 0.8 x rated voltage and a holding factor of 1.1 x rated voltage — meaning it pulls in reliably at 19.2 V and stays sealed up to 26.4 V. Rated operational current at 24 V is 6 A; at 400 V it carries 3 A. At 230 V it is rated for 1 hp motor loads. These numbers define the maximum continuous current the main contacts can handle at each voltage level — oversizing the contactor for your actual load current is standard practice to ensure contact life. ## Switching frequency and mechanical endurance Maximum switching rate depends on duty: 1 000 operations per hour at AC-1 (resistive), 750/h at AC-2 and AC-3 (motor starting), and 250/h at AC-4 (plugging/inching). Wire cross-section accepts solid or stranded 0.5 to 4 mm² (single or 2x 0.5–4 mm²). The spring-type terminals on the coil reduce wiring time — no screw tightening needed, just insert the stripped wire.","metaTitle":"Siemens SIRIUS 3RT2016-2BB44-3MA0 Power Contactor, 24 VDC, S","metaDescription":"Siemens SIRIUS 3RT2016-2BB44-3MA0 power contactor, 24 VDC coil, Size S00, 45 mm wide, spring-type terminals. Rated 6 A at 24 V, 3 A at 400 V. Sourced 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":"1 hp","at 400 V rated value":"3 A","at 440 V rated value":"0.2 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 ... 12","For Main Current Circuit":"spring-loaded terminals","at 110/120 V rated value":"0.33 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":"0.9 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":"19.4 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: 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":"0.3 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":"155 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"111 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"86 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"66 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"55 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":"4 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":"$30.48","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ec28fb528e99ad759d355fc88237ee22.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=383850&mlfb=3RT2016-2BB44-3MA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2016-2BB44-3MA0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for 3RT2016-2BB44-3MA0?","answer":"The closest peer is 3RT2016-1AD02, which shares the same Size S00 frame and 24 V DC coil but uses screw-type terminals instead of spring-type. Panel fit and rail footprint are identical, so no rewiring of the mounting is needed — only the terminal style differs."},{"question":"What compliance documentation is available for this contactor?","answer":"As a Siemens SIRIUS product, it carries CE marking and is designed to meet IEC/EN 60947-4-1. RoHS and REACH declarations are available from Siemens on request."},{"question":"Where can I buy 3RT2016-2BB44-3MA0 and get current pricing?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for quote to confirm current pricing and availability."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2016-2BB44-3MA0","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/3RT2016-2BB44-3MA0 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}}