{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2317-1BG40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2317-1BG40","canonicalUrl":"https://aoctrl.com/siemens/3RT2317-1BG40","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2317-1BG40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2317-1BG40 contactor, size S00, 12 A at 400 V AC-3, 5.5 kW motor rating, 125 V DC coil, screw-type terminals, DIN rail mount.","salesMarkdown":"## Motor rating and what drives the selection The 3RT2317-1BG40: The 12 A at 400 V AC-3 rating (5.5 kW motor) is the load-bearing figure for this SIRIUS size S00 contactor — it's the current the main poles can switch under the inductive motor load of a standard squirrel-cage machine starting and running. For reversing or inching duty (AC-4), the same contactor is rated 4 kW at 400 V, reflecting the higher electrical stress of plugging or jogging where the motor is reconnected while still spinning. The 125 V DC coil means this is a DC-operated contactor — the magnet coil holds in with DC, not AC, so the pickup and dropout timing (7...13 ms operating time) is consistent regardless of line frequency, which matters for sequenced starter schemes where the contactor must close within a defined window. ## Terminal wiring and auxiliary contacts An auxiliary switch is included (20...12 contacts for auxiliary circuits), which saves a separate add-on block for basic status feedback — the auxiliary contacts share the same 6 kV rated impulse withstand voltage as the main circuit, so they can be wired into the same control transformer secondary without extra isolation.","metaTitle":"Siemens 3RT2317-1BG40 SIRIUS Contactor, 12 A AC-3 at 400 V","metaDescription":"Siemens 3RT2317-1BG40 SIRIUS contactor, size S00, rated 12 A at 400 V AC-3 (5.5 kW motor). Screw terminals, 125 V DC coil, DIN rail mount.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"73 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Width":"45 mm","at DC":"7 ... 13 ms","title":"3RT2317-1BG40","Height":"58 mm","Upwards":"10 mm","Forwards":"10 mm","Stranded":"0.5 ... 4 mm²","Downwards":"10 mm","Attachable":"2","Arcing Time":"10 ... 15 ms","At The Side":"6 mm","Rated Value":"125 V","description":"contactor AC-1, 22 A, 400 V / 40 °C, 4-pole, 125 V DC, screw terminal, size: S00","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":"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 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","Product Brand Name":"SIRIUS","Product Designation":"Contactor","Of Contactor Typical":"30 000 000","at 400 V rated value":"12 A","Side-By-Side Mounting":"Yes","For Auxiliary Contacts":"20 ... 12","For Main Current Circuit":"screw-type terminals","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"6 kV","at AC in hot operating state":"6.4 W","at AC-3 at 400 V rated value":"5.5 kW","at AC-4 at 400 V rated value":"4 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":"4 W","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","operating frequency at AC-1 maximum":"1 000 1/h","With Type Of Coordination 1 Required":"gG: 35 A (690 V, 100 kA)","at AC in hot operating state per pole":"1.6 W","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 2x 12","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","Product Function Short Circuit Protection":"No","mirror contact according to IEC 60947-4-1":"Yes; with 3RH29","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","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":"4 mm²","Of The Auxiliary And Control Circuit With Degree Of Pollution 3 Rated Value":"690 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/9d91cb39275db395a6ec19b69f6215db.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=156658&mlfb=3RT2317-1BG40"},"ai":{"faq":[{"question":"What is the closest alternative if 3RT2317-1BG40 is unavailable?","answer":"A different coil voltage (e.g. 24 V DC or 230 V AC) would be a different order code within the 3RT2 family, and the mechanical dimensions and terminal layout may differ."},{"question":"What compliance documentation does Siemens provide for 3RT2317-1BG40?","answer":"The part is RoHS compliant with a substance prohibition date of 10/01/2009."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2317-1BG40","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/3RT2317-1BG40 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}}