{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2326-1BF40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2326-1BF40","canonicalUrl":"https://aoctrl.com/siemens/3RT2326-1BF40","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2326-1BF40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2326-1BF40, S0 frame contactor, 110 VDC coil, screw-type terminals, 1 NC + 1 NO auxiliary, 10 A at 24 VDC, 10 million mechanical cycles.","salesMarkdown":"## SIRIUS S0 Contactor with 110 VDC Coil The Siemens 3RT2326-1BF40 is a SIRIUS S0-frame contactor with a 110 VDC magnet coil terminated at screw-type terminals. It carries an integrated auxiliary switch block (1 NC + 1 NO) and accepts up to two additional attachable auxiliary contact blocks for expanded signaling or interlocking. Rated for main contact duty at 16 A through 8 A depending on utilization category, this contactor is sized for motor loads up to 7.5 kW at 400 V AC-3. The DC coil pulls in reliably at 0.8 × rated voltage (88 VDC minimum pick-up) and holds through the full 1.1 × rated voltage over-range. The S0 footprint (85 mm high × 60 mm wide × 107 mm deep) fits standard panel layouts; clearance requirements are 10 mm upward, 10 mm forward, 10 mm downward, and 6 mm to the side. ## Auxiliary Contact Ratings Across Voltages The built-in auxiliary contacts are rated for a wide range of control voltages: 10 A at 24 VDC, 6 A at 60 VDC, 1 A at 110 VDC, 0.9 A at 125 VDC, 0.3 A at 220 VDC, and 0.1 A at 600 VDC. On the AC side, they handle 10 A at 230 VAC and 3 A at 400 VAC. This covers most PLC output and relay interface loads without derating. ## Environmental and Wiring Details Auxiliary and coil terminals accept solid wire 2× (0.5 to 1.5 mm²) or 2× (0.75 to 2.5 mm²). The DC coil dropout time is 15 to 18 ms; arcing time is 10 ms.","metaTitle":"Siemens 3RT2326-1BF40 SIRIUS Contactor, 110 VDC Coil, S0 Fra","metaDescription":"Siemens SIRIUS 3RT2326-1BF40 contactor, 110 VDC coil, S0 frame, screw terminals, 1 NC + 1 NO auxiliary. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"107 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Width":"60 mm","at DC":"15 ... 18 ms","Height":"85 mm","Upwards":"10 mm","Forwards":"10 mm","Stranded":"1 ... 10 mm²","Downwards":"10 mm","Attachable":"2","Arcing Time":"10 ... 10 ms","At The Side":"6 mm","Rated Value":"110 V","Initial Value":"0.8","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","Type Of Voltage":"DC","lifecycle_stage":"current","Auxiliary Switch":"Yes","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":"1.1","For Main Contacts":"16 ... 8","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)","Product Brand Name":"SIRIUS","Product Designation":"Contactor","at 24 V rated value":"10 A","at 48 V rated value":"2 A","at 60 V rated value":"6 A","Of Contactor Typical":"10 000 000","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":"10 A","at 400 V rated value":"3 A","at 500 V rated value":"2 A","at 600 V rated value":"0.1 A","at 690 V rated value":"1 A","Instantaneous Contact":"1","Side-By-Side Mounting":"Yes","For Auxiliary Contacts":"20 ... 14","For Main Current Circuit":"screw-type terminals","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"6 kV","at AC in hot operating state":"9.6 W","at AC-3 at 400 V rated value":"7.5 kW","at AC-4 at 400 V rated value":"7.5 kW","Substance Prohibitance (Date)":"10/01/2009","Of Auxiliary Circuit Rated Value":"6 kV","For Auxiliary And Control Circuit":"screw-type terminals","Function Module For Communication":"No","Product Function Bus Communication":"No","With Type Of Assignment 2 Required":"gG: 20 A (690 V, 100 kA)","Without Load Current Share Typical":"5.9 W","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","operating frequency at AC-1 maximum":"1 000 1/h","With Type Of Coordination 1 Required":"gG: 63 A (690 V, 100 kA)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"2.4 W","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","number of NO contacts for main contacts":"4","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":"4","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Product Function Short Circuit Protection":"No","mirror contact according to IEC 60947-4-1":"Yes","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","Limited To 1 S Switching At Zero Current Maximum":"Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"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","For Short-Circuit Protection Of The Auxiliary Switch Required":"gG: 10 A (690 V, 1 kA)","minimum cross-section in main circuit at maximum AC-1 rated value":"10 mm²","Of The Auxiliary And Control Circuit With Degree Of Pollution 3 Rated Value":"690 V","Design Of The Miniature Circuit Breaker For Short-Circuit Protection Of The Auxiliary Switch Required":"gG: 10 A (230 V, 400 A)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b7f38e9f9d86e59b04eac68bfea90c40.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=342986&mlfb=3RT2326-1BF40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2326-1BF40/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT2326-1BF40 and how do I 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 3RT2326-1BF40's listed depth?","answer":"The depth is 107 mm, with a width of 60 mm and height of 85 mm (S0 frame)."},{"question":"What wire sizes does the 3RT2326-1BF40 accept?","answer":"Main circuit terminals accept stranded wire 1 to 10 mm². Auxiliary and coil terminals accept solid wire 2× (0.5 to 1.5 mm²) or 2× (0.75 to 2.5 mm²)."},{"question":"Will 3RT2326-1BF40 drop into a panel specified around 3RT2326-1BK80?","answer":"Both share the same S0 frame size and DIN-rail mounting pattern, so the physical footprint and clearance requirements are identical. The difference is the coil voltage — 3RT2326-1BF40 uses 110 VDC, while 3RT2326-1BK80 uses a different coil rating. Check the coil voltage matches your control circuit before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2326-1BF40","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/3RT2326-1BF40 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}}