{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2016-2BM42","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2016-2BM42","canonicalUrl":"https://aoctrl.com/siemens/3RT2016-2BM42","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2016-2BM42","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S00 power contactor, 3RT2016-2BM42, 24 VDC coil, spring-type terminals, 20-12 A main contacts, DIN-rail mount, 45 x 70 x 73 mm.","salesMarkdown":"The Siemens 3RT2016-2BM42 is a SIRIUS S00 power contactor — the smallest frame in the SIRIUS line, sized for motor loads and resistive heating in control panels up to around 7.5 kW at 400 V AC-3 duty. The S00 frame keeps the footprint tight at 45 mm wide by 70 mm tall by 73 mm deep, which matters when you're packing contactors into a crowded DIN-rail enclosure. The coil is 24 VDC with spring-type terminals — no screwdriver needed for the coil connection, which shaves a few seconds per termination on the line. Main contacts are rated for 20 to 12 A, and the contactor carries an auxiliary switch built in. Clearances are specified: 10 mm upward and forward, 10 mm downward, 6 mm at the sides. That's the air gap needed for arc extinction and heat dissipation — don't crowd it tighter. The spring-type terminals on the coil side accept the same range. ## Switching capacity and duty cycles The main contacts are rated for 20 to 12 A — that's the continuous current range, not a single fixed value. For motor starting (AC-3 duty), the contactor can handle up to 750 operations per hour; for AC-4 (plugging/reversing) it's 250 per hour. AC-1 resistive loads allow 1,000 operations per hour. The mechanical life is typical 30 million operations, so it'll outlast most of the gear it's switching. Auxiliary contact ratings at DC voltages: 10 A at 24 V, 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V. That covers most control-circuit voltages you'll see in industrial panels.","metaTitle":"Siemens 3RT2016-2BM42 SIRIUS S00 Power Contactor, 24 VDC Coi","metaDescription":"Siemens 3RT2016-2BM42 SIRIUS S00 power contactor with 24 VDC coil, spring-type terminals. Rated for 20-12 A main contacts. DIN-rail mount, 45 mm wide. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"73 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":"220 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":"Yes","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting 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":"10 A","at 48 V rated value":"2 A","at 60 V rated value":"2 A","Of Contactor Typical":"30 000 000","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","at AWG cables for main contacts":"2x (20 ... 12)","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)","at AWG cables for auxiliary contacts":"2x (20 ... 12)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"0.3 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 ... 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":"1","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5cd110912d20183149d05a8409babd5e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=247938&mlfb=3RT2016-2BM42","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2016-2BM42/alternatives.json"},"ai":{"faq":[{"question":"What is 3RT2016-2BM42's depth?","answer":"The depth is 73 mm, with a width of 45 mm and height of 70 mm — the S00 frame dimensions."},{"question":"What wire sizes does the 3RT2016-2BM42 accept?","answer":"Solid or stranded conductors from 0.5 to 4 mm², with spring-type terminals on the coil side. You can double up two conductors of the same range per terminal."},{"question":"Where can I buy 3RT2016-2BM42?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2016-2BM42","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/3RT2016-2BM42 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}}