{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2016-2QB42","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2016-2QB42","canonicalUrl":"https://aoctrl.com/siemens/3RT2016-2QB42","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2016-2QB42","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS coupling contactor, Size S00, 24 VDC coil, 10 A rated current, spring-type terminals, 45 mm width, screw and snap-on mounting on 35 mm DIN rail.","salesMarkdown":"## Siemens 3RT2016-2QB42 SIRIUS Coupling Contactor It uses spring-type terminals and mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715, making it a compact (45 mm wide, 70 mm tall, 121 mm deep) panel component for control circuits where a dedicated coupling contactor is specified. The 24 VDC coil draws an initial inrush of 0.7 A and holds at 1.25 A full-scale, with a dropout delay of 7 to 20 ms — important when sequencing contactors in safety or interlock chains. The arcing time runs 10–15 ms, so the contactor clears faults fast enough for most control circuits. Switching frequency depends on duty: up to 1,000 operations per hour at AC-1 (resistive loads), 750/h at AC-2 and AC-3 (motor starting/running), and 250/h at AC-4 (plugging/reversing). That means for a conveyor motor running AC-3 duty, you get 750 cycles per hour — enough for most material-handling lines, but not for high-speed indexing. Spring-type terminals accept solid or stranded wire from 0.5 to 4 mm², or two conductors of the same range (2x 0.5–4 mm²). No screwdriver torque needed — strip, insert, release. The contactor has no auxiliary switch built in, so if you need feedback to a PLC, plan for a separate auxiliary contact block. The contactor is rated for use in standard industrial enclosures; no special cooling required within those limits.","metaTitle":"Siemens 3RT2016-2QB42 SIRIUS Coupling Contactor, 24 VDC, 10","metaDescription":"Siemens SIRIUS 3RT2016-2QB42 coupling contactor, 24 VDC coil, 10 A rated current, Size S00, spring-type terminals, DIN rail mount. Currently in production. Order via 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 ... 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":"0.7","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":"1.25","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","Design Of The Surge Suppressor":"with varistor","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":"2.8 W","closing power of magnet coil at DC":"2.8 W","holding power of magnet coil at DC":"2.8 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/9205932d52e8afbcb26118ce2c6fa7f5.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=314052&mlfb=3RT2016-2QB42","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2016-2QB42/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 3RT2016-2QB42?","answer":"The depth is 121 mm (excluding terminals)."},{"question":"What wire sizes does the spring terminal accept?","answer":"Solid or stranded wire from 0.5 to 4 mm², or two conductors of the same range (2x 0.5–4 mm²)."},{"question":"Will 3RT2016-2QB42 drop into a panel designed for 3RT2016-1AG62?","answer":"Both are SIRIUS Size S00 contactors with the same 45 mm width and DIN rail mounting. The 3RT2016-1AG62 uses a 24 VAC coil, while this 2QB42 uses 24 VDC — verify coil supply before swapping. Physical fit is identical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2016-2QB42","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/3RT2016-2QB42 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}}