{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2024-1BB40-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2024-1BB40-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RT2024-1BB40-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2024-1BB40-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, power contactor, 3RT2024-1BB40-ZX95, size S0, 24 V DC coil, screw-type terminals, main contacts 16...8 A, auxiliary switch included, 45 x 85 x 107 mm, screw and snap-on mounting on 35 mm DIN rail.","salesMarkdown":"It's a current-production part, so no hunting for NOS or surplus — it's a standard catalog line. Main contacts rated 16 A down to 8 A, and it carries an auxiliary switch built in — saves a slot on the DIN rail if you need a feedback signal. The AC-3 motor switching rating is what matters for most conveyor, pump, and fan duty. At 230 V it's rated 2 hp, and at 400 V it handles 3 A in AC-15 control-circuit duty. For DC switching at 24 V it's good for 10 A — that's the inductive load curve on solenoids or brake coils. Electrical life depends on the duty class: AC-3 gives you 1,000 operations per hour max, AC-4 drops to 300 per hour because of the harder breaking. If you're jogging or inching a motor, keep the AC-4 cycle rate in mind. It's a common footprint — if you're swapping a failed contactor in a panel, the DIN rail clips and terminal layout are standard for this class. Auxiliary terminals take 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²). All screw-type — no special tooling needed on site. That's the minimum to maintain rated isolation — tight panels can squeeze it, but don't crowd the arc chute side. Arcing time is 10 to 10 ms — consistent, not a wide spread. That's the kind of number that matters if you're coordinating fuse or breaker curves downstream.","metaTitle":"Siemens 3RT2024-1BB40-ZX95 SIRIUS Power Contactor, 24 VDC Co","metaDescription":"Siemens SIRIUS 3RT2024-1BB40-ZX95 power contactor, size S0, 24 VDC coil, screw terminals, 16-8 A main contacts, 2 hp at 230 V. Current lifecycle stage. Quoted 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":"24 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":"2 hp","at 400 V rated value":"3 A","at 440 V rated value":"0.6 A","at 480 V rated value":"11 A","at 500 V rated value":"2 A","at 600 V rated value":"11 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":"3 hp","at 220/230 V rated value":"3 hp","at 460/480 V rated value":"7.5 hp","at 575/600 V rated value":"10 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":"0.9 W","at AC-3e rated value maximum":"690 V","at AC-4 at 400 V rated value":"12.5 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":"9.9 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":"0.3 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":"210 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"210 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"170 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"126 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"105 A; Use minimum cross-section acc. to AC-1 rated value","contact rating of auxiliary contacts according to UL":"A600 / P600","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 (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=411374&mlfb=3RT2024-1BB40-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2024-1BB40-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What is 3RT2024-1BB40-ZX95's listed depth?","answer":"The depth is 107 mm. That's the dimension from the DIN rail mounting surface to the front of the contactor, including the coil terminals."},{"question":"What wire sizes does the 3RT2024-1BB40-ZX95 accept?","answer":"Main power terminals accept solid or stranded wire from 1 to 10 mm². Auxiliary terminals accept 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²). All connections are screw-type."},{"question":"Will 3RT2024-1BB40-ZX95 drop into a panel that was specified around 3RT2024-1AL20-ZX95 without rewiring?","answer":"Both are S0 frame size contactors with the same 45 mm width, 85 mm height, and 107 mm depth, so the physical footprint and DIN rail clip are identical. The key difference is the coil voltage — this one is 24 V DC, while the 3RT2024-1AL20-ZX95 uses a different coil rating. If the coil voltage matches your control circuit, it's a direct mechanical swap. Verify the auxiliary contact configuration on your specific variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2024-1BB40-ZX95","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/3RT2024-1BB40-ZX95 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}}