{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2626-1BB45","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2626-1BB45","canonicalUrl":"https://aoctrl.com/siemens/3RT2626-1BB45","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2626-1BB45","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS capacitor contactor, Size S0, 24 V DC coil with screw terminals, 45 mm width, rated 6 A at 24 V DC.","salesMarkdown":"It carries a 24 V DC coil with screw-type terminals, and its switching capacity is rated at 6 A at 24 V DC, 6 A at 230 V AC, and 3 A at 400 V AC — the DC ratings are what matter for this coil variant, since the contactor itself is built for AC capacitor loads on the main poles. The S0 frame (45 mm wide, 135 mm high, 165 mm deep) is a standard Siemens contactor footprint — it snaps onto 35 mm DIN rail per DIN EN 50022, and the mounting position allows ±180° rotation on a vertical surface plus ±22.5° tilt forward/backward, so panel layout is flexible. The 24 V DC coil holds at nominal and drops out below 18 V; verify your control supply can deliver the inrush without sagging. Wire termination accepts solid conductors from 0.5 mm² up to 4 mm² (2x per terminal) and stranded from 1 mm² to 10 mm², with a single 10 mm² at 40 °C or dual 10 mm² at 60 °C — this covers most panel wiring for capacitor banks up to the contactor's rating. The switching frequency is capped at 100 operations per hour across all voltage ranges (230 V to 690 V), which is typical for capacitor switching where thermal recovery time governs. The S0 width (45 mm) leaves room for adjacent contactors or overload relays in a multi-step PFC bank. The screw terminals are captive and accept the wire ranges listed — no special tools beyond a standard screwdriver. The DC coil means no hum, and the arcing time of 10 ms is typical for DC switching; ensure the control transformer or power supply can handle the coil's pick-up current.","metaTitle":"Siemens 3RT2626-1BB45 SIRIUS Capacitor Contactor, 24 VDC Coi","metaDescription":"Siemens 3RT2626-1BB45 SIRIUS capacitor contactor, 24 VDC coil, S0 frame, 45 mm wide. Rated switching capacity 6 A at 24 V DC. Current lifecycle. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"165 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","Width":"45 mm","at DC":"15 ... 18 ms","title":"3RT2626-1BB45","Height":"135 mm","at 24 V":"6 A","at 60 V":"2 A","Stranded":"2x (1 ... 2.5 mm²), 2x (2.5 ... 10 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 10 mm²","at 60 °C":"2x 10 mm²","Attachable":"0","Arcing Time":"10 ... 10 ms","Rated Value":"24 V","description":"capacitor contactor, AC-6b 20 kVAr, / 400 V, 3-pole, 24 V DC, auxiliary contacts: 1 NO + 2 NC, screw terminal, size: S0","Initial Value":"0.8","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":"100 1/h","at 240 V maximum":"100 1/h","at 400 V maximum":"100 1/h","at 480 V maximum":"100 1/h","at 500 V maximum":"100 1/h","at 600 V maximum":"100 1/h","at 690 V maximum":"100 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":"S0","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 (16 ... 12), 2x (14 ... 8)","Of Auxiliary Circuit Rated Value":"6 kV","For Auxiliary And Control Circuit":"screw-type terminals","at DC at 24 V maximum permissible":"16 mA","Product Extension Auxiliary Switch":"No","closing power of magnet coil at DC":"5.9 W","holding power of magnet coil at DC":"5.9 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)":"200 000","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":"2","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":"16 ... 8","For Short-Circuit Protection Of The Main Circuit With Type Of Coordination 1 Required":"gG: 63 A (690 V, 50 kA)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/36dd2efac410d81a7399adb948b76e7c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=285398&mlfb=3RT2626-1BB45"},"ai":{"faq":[{"question":"Where can I buy the 3RT2626-1BB45 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is the closest functional second-source for the 3RT2626-1BB45?","answer":"The 3RT2326-1BK80 is the closest peer — same S0 frame and capacitor contactor class, but verify the coil voltage differs (the 1BB45 is 24 V DC; the 1BK80 may be a different coil variant). Panel footprint and wiring are identical."},{"question":"What is the depth of the 3RT2626-1BB45?","answer":"The depth is 165 mm, with a width of 45 mm and height of 135 mm — standard S0 frame dimensions for DIN-rail mounting."},{"question":"What solid wire sizes does the 3RT2626-1BB45 accept?","answer":"It accepts 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and 2x 4 mm² solid conductors per terminal."},{"question":"Will the 3RT2626-1BB45 drop into a panel specified for the 3RT2326-1BK80 without rewiring?","answer":"Yes — same S0 frame, same DIN-rail footprint, same terminal layout. The only difference is the coil voltage; if the panel's control voltage matches 24 V DC, it's a direct swap. If the 1BK80 had a different coil voltage, you'll need to verify the control circuit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2626-1BB45","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/3RT2626-1BB45 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}}