{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2617-1BF43","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2617-1BF43","canonicalUrl":"https://aoctrl.com/siemens/3RT2617-1BF43","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2617-1BF43","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2617-1BF43 capacitor contactor, Size S00, 110 V DC coil, screw-type terminals, 45 mm width, 125 mm height, 120 mm depth, DC switching ratings from 6 A at 24 V to 0.3 A at 220 V.","salesMarkdown":"## Capacitor switching duty — not a general-purpose contactor The 3RT2617-1BF43 is a dedicated capacitor contactor from the Siemens SIRIUS family, Size S00. It is designed for switching capacitor banks for power factor correction, where the inrush current can exceed the rated current by a factor of 20 or more. The contactor's construction — including the arcing time of 10...15 ms — is optimised for this repetitive, high-peak duty, not for motor starting or resistive loads. ## DC coil at 110 V — control circuit integration The coil is rated 110 V DC with screw-type terminals, and the operate/release time is 7...13 ms. The DC coil draws no continuous holding current after the initial surge, so it runs cooler than an equivalent AC coil and is suited for PLC-driven control panels where the 24 V DC bus is not available. ## DC switching ratings — what they mean for capacitor bank selection These are the maximum DC-1 (resistive) or DC-3 (motor) currents the main poles can interrupt. For capacitor switching, the relevant rating is the AC-6b category (not listed here directly), but the DC figures confirm the contactor's capability to break the DC link of a capacitor bank after the AC side has opened. The instantaneous contact (1 NO) provides a fast make/break for the capacitor discharge resistor circuit.","metaTitle":"Siemens 3RT2617-1BF43 SIRIUS Capacitor Contactor","metaDescription":"Siemens 3RT2617-1BF43 SIRIUS capacitor contactor, 110 V DC coil, Size S00, 45 mm width, screw terminals. DC switching rated at 6 A (24 V) to 0.3 A (220 V).","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"120 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","Width":"45 mm","at DC":"7 ... 13 ms","title":"3RT2617-1BF43","Height":"125 mm","at 24 V":"6 A","at 60 V":"2 A","Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","at 110 V":"1 A","at 125 V":"0.9 A","at 220 V":"0.3 A","at 230 V":"6 A","at 400 V":"3 A","at 690 V":"1 A","at 40 °C":"1x 4 mm², 2x 2.5 mm²","at 60 °C":"2x 4 mm²","Attachable":"0","Arcing Time":"10 ... 15 ms","Rated Value":"110 V","description":"capacitor contactor, AC-6b 12.5 kVAr, / 400 V, 3-pole, 110 V DC, auxiliary contacts: 1 NO + 1 NC, screw terminal, size: S00","Initial Value":"0.85","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","Type Of Voltage":"DC","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 50022","Full-Scale Value":"1.1","at 230 V maximum":"180 1/h","at 240 V maximum":"180 1/h","at 400 V maximum":"180 1/h","at 480 V maximum":"180 1/h","at 500 V maximum":"180 1/h","at 600 V maximum":"180 1/h","at 690 V maximum":"180 1/h","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":"capacitor contactors","Instantaneous Contact":"1","For Main Current Circuit":"screw-type terminals","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"6 kV","Substance Prohibitance (Date)":"05/01/2014","For Grounded Parts At The Side":"10 mm","at AWG cables for main contacts":"2x (20 ... 16), 2x (18 ... 14), 2x 12","Of Auxiliary Circuit Rated Value":"6 kV","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"No","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","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 2x 12","With Side-By-Side Mounting At The Side":"10 mm","Electrical Endurance (Operating Cycles)":"300 000","number of NC contacts for main contacts":"0","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":"0.00000001","mirror contact according to IEC 60947-4-1":"No","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","Type Of Voltage Of The Control Supply Voltage":"DC","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":"3 000 000","operational current of auxiliary contacts at AC-12 maximum":"10 A","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)","AWG number as coded connectable conductor cross section for main contacts":"20 ... 12","For Short-Circuit Protection Of The Main Circuit With Type Of Coordination 1 Required":"gG: 40 A (690 V, 50 kA)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c0fe80ed6161123ac3117c72a44789aa.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=148483&mlfb=3RT2617-1BF43"},"ai":{"faq":[{"question":"What compliance documentation does Siemens provide for the 3RT2617-1BF43?","answer":"As a current-production SIRIUS contactor, the 3RT2617-1BF43 is covered by Siemens' declaration of conformity for the Low Voltage Directive and EMC Directive, plus RoHS and REACH compliance statements. The specific certificates (CE, UKCA, UL, CSA) are available upon request with the order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2617-1BF43","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/3RT2617-1BF43 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}