{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2023-1BD40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2023-1BD40","canonicalUrl":"https://aoctrl.com/siemens/3RT2023-1BD40","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2023-1BD40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2023-1BD40 power contactor, Size S0, 42 V AC 50/60 Hz coil, screw-type terminals, 45 mm width.","salesMarkdown":"## Mounting and clearances — fits the standard rail, but watch the breathing room The S0 frame is 45 mm wide, 85 mm high, 107 mm deep. Mounting position: ±180° rotation on vertical surface, ±22.5° tilt forward/backward. ## Switching capacity — where it earns its keep This contactor's switching capacity is given per rated voltage, not a single blanket amp rating. At 24 V it switches 10 A; at 48 V and 60 V it handles 2 A; at 110 V it's rated 1 A; at 125 V it drops to 0.9 A; at 220 V it's 0.3 A; and at 400 V it manages 3 A. For motor loads at 230 V, it's rated 1 hp. The mechanical life is 10 million operations typical, with maximum switching rates of 1 000 cycles per hour for AC-1, AC-2, AC-3, and AC-3e duty, dropping to 300 cycles per hour for AC-4. The arcing time sits at 10 to 10 ms, and the DC operating time is 15 to 18 ms. These numbers tell you it's a general-purpose machine-tool contactor, not a high-speed chopper — fine for conveyor starters, pump runs, and crusher auxiliaries that don't cycle faster than every few seconds. ## Environmental range — built for the cabinet, not the pit floor That's standard for a panel-mount contactor — it shrugs off the heat inside a closed cabinet but isn't sealed for washdown or dust-ignition environments. The pick-up voltage is 0.8 of rated value; the drop-out voltage is 1.1 of rated value. So at 42 V nominal, it picks up around 33.6 V and drops out around 46.2 V — that's a tight hysteresis band, meaning it won't chatter on a sagging line, but it also won't hold in on a weak control transformer.","metaTitle":"Siemens 3RT2023-1BD40 SIRIUS Power Contactor, S0 Frame, 42V","metaDescription":"Siemens 3RT2023-1BD40 SIRIUS power contactor, S0 frame, 42 V AC coil, screw terminals, 45 mm wide, current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"107 mm","Solid":"1 ... 10 mm²","Width":"45 mm","at DC":"15 ... 18 ms","Height":"85 mm","Upwards":"10 mm","Forwards":"10 mm","Stranded":"1 ... 10 mm²","Downwards":"10 mm","Arcing Time":"10 ... 10 ms","At The Side":"6 mm","Rated Value":"42 V","Initial Value":"0.8","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","at AC-1 maximum":"1 000 1/h","at AC-2 maximum":"1 000 1/h","at AC-3 maximum":"1 000 1/h","at AC-4 maximum":"300 1/h","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","at AC-3e maximum":"1 000 1/h","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":"Power 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":"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":"1 hp","at 400 V rated value":"3 A","at 440 V rated value":"0.6 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 ... 14","For Main Current Circuit":"screw-type terminals","at 110/120 V rated value":"1 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":"0.6 W","at AC-2 at 400 V rated value":"4 kW","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","Of Auxiliary Circuit Rated Value":"6 kV","at AC-5a up to 690 V rated value":"35.2 A","at AC-5b up to 400 V rated value":"7.4 A","For Auxiliary And Control Circuit":"screw-type terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 25A (690V,100kA), aM: 20A (690V,100kA), BS88: 25A (415V,80kA)","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","With Type Of Coordination 1 Required":"gG: 63A (690V,100kA), aM: 32A (690V,100kA), BS88: 63A (415V,80kA)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"0.2 W","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","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":"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 %","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":"170 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"170 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"140 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"104 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"88 A; Use minimum cross-section acc. to AC-1 rated value","contact rating of auxiliary contacts according to UL":"A600 / P600","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","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":"10 mm²","number of NC contacts for auxiliary contacts instantaneous contact":"1","number of NO contacts for auxiliary contacts instantaneous contact":"1","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=359406&mlfb=3RT2023-1BD40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2023-1BD40/alternatives.json"},"ai":{"faq":[{"question":"What replaces the 3RT2023-1BD40 if I need a different coil voltage?","answer":"The evidence does not list an official successor or alternate coil-voltage variant for this exact order code. For a different coil voltage, you would need to select a different 3RT2 variant in the S0 frame with the desired coil rating. The 3RT2024-2BB40 is a peer in the same SIRIUS family but carries different ratings — verify fit against your BOM before substituting."},{"question":"What are the key dimensions of the 3RT2023-1BD40?","answer":"Width is 45 mm, height is 85 mm, depth is 107 mm. It mounts on 35 mm DIN rail per DIN EN 60715 or with screws."},{"question":"What conductor sizes does the 3RT2023-1BD40 accept?","answer":"Solid or stranded wire from 1 to 10 mm². For fine-stranded wire with ferrules, it accepts 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²)."},{"question":"What compliance documentation is available for the 3RT2023-1BD40?","answer":"The evidence does not list specific certifications (UL, CSA, CE, RoHS, REACH) for this order code. Standard SIRIUS contactors typically carry CE marking for the European market and may have UL/CSA listings depending on the variant. Request the manufacturer's declaration of conformity or the specific approval certificate from the supplier against an RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2023-1BD40","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/3RT2023-1BD40 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}}