{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2016-2MB42-0KT0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2016-2MB42-0KT0","canonicalUrl":"https://aoctrl.com/siemens/3RT2016-2MB42-0KT0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2016-2MB42-0KT0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2016-2MB42-0KT0 coupling contactor, Size S00, 24 VDC coil, spring-type terminals, rated for AC-3 switching at 750 operations per hour.","salesMarkdown":"The Siemens SIRIUS 3RT2016-2MB42-0KT0 is a coupling contactor in the Size S00 footprint. The coil is rated at 24 VDC nominal, with a pickup voltage of 0.85 × rated value (20.4 VDC) and a dropout voltage of 0.55 × rated value (13.2 VDC) — the full-scale dropout is 1.85 × the pickup threshold. This gives a clear operating band: the contactor pulls in reliably above 20.4 V and drops out below 13.2 V, which matters when sizing control transformers or dealing with voltage sag on a long DC run. The main contacts are rated for 20 to 12 A (AC-3 duty, the standard for squirrel-cage motors). The contactor is designed for 750 operations per hour at AC-3 and AC-3e, and up to 1000 ops/h at AC-1 (resistive loads). At AC-4 (plugging/inching duty) the rate drops to 250 ops/h. ## Auxiliary Contact Ratings (DC Switching) This variant ships without an auxiliary switch block. If you need auxiliary contacts for status feedback or interlocking, they must be added separately. The DC switching ratings for the main contacts are relevant for DC load circuits: 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, and 3 A at 400 V. The arcing time at DC is 10 to 15 ms, with a DC operating time of 5 to 20 ms — useful for estimating contact wear in DC motor brake or solenoid circuits. The contactor measures 45 mm wide × 70 mm high × 73 mm deep (Size S00). These clearances mean it fits tightly in a standard 600 mm wide enclosure with room for wiring ducts alongside.","metaTitle":"Siemens 3RT2016-2MB42-0KT0 SIRIUS Coupling Contactor, Size S","metaDescription":"Siemens SIRIUS 3RT2016-2MB42-0KT0 coupling contactor, Size S00, 24 VDC coil, spring-type terminals, rated for AC-3 switching at 750 ops/h. Current lifecycle stage. 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":"5 ... 20 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":"0.85","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":"1.85","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":"Coupling 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","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":"1.6 W","closing power of magnet coil at DC":"1.6 W","holding power of magnet coil at DC":"1.6 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 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"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c65307ea5a73f6a6fdc5863606c43489.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=221736&mlfb=3RT2016-2MB42-0KT0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2016-2MB42-0KT0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for 3RT2016-2MB42-0KT0?","answer":"The peer 3RT2016-2AB02-ZX95 is a Size S00 contactor in the same SIRIUS family, but it uses screw-type terminals instead of spring-type terminals. The 3RT2015-2SB41 and 3RT2015-2HB41 are also Size S00 but with different coil voltages. For a direct drop-in without rewiring, verify the terminal type and coil voltage match your panel design."},{"question":"What wire sizes does the spring terminal accept?","answer":"Solid or stranded wire from 0.5 to 4 mm², and 2 × (0.5 to 4 mm²) for paralleled conductors."},{"question":"Where can I buy 3RT2016-2MB42-0KT0 and how is it quoted?","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/3RT2016-2MB42-0KT0","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/3RT2016-2MB42-0KT0 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}}