{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2025-2XF40-0LA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2025-2XF40-0LA2","canonicalUrl":"https://aoctrl.com/siemens/3RT2025-2XF40-0LA2","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2025-2XF40-0LA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2025-2XF40-0LA2 power contactor, S0 frame, 110 V DC coil, spring-type terminals, 45 mm wide, rated switching capacity 10 A at 24 V DC.","salesMarkdown":"The contactor carries an auxiliary switch for status feedback or interlocking. The DC coil draws an inrush current peak of 15 A and has a pick-up factor of 0.7 (1.25 on full-scale), meaning it reliably pulls in at 77 V DC and drops out below about 33 V DC. The contactor's DC switching capacity is rated at 10 A at 24 V, 2 A at 48 V, 2 A at 60 V, 1 A at 110 V, 0.9 A at 125 V, and 0.3 A at 220 V. For a 230 V AC motor load it is rated at 3 hp. The AC-3 maximum switching rate is 1 000 operations per hour, dropping to 300 per hour for AC-4 (plugging/inching). The contactor accepts 2x (1 to 10 mm²) solid or stranded on the main contacts and 2x (0.5 to 2.5 mm²) on the auxiliary contacts. The S0 footprint is 45 mm wide, 102 mm high, and 107 mm deep. The S0 size and 45 mm width fit standard DIN-rail enclosures; minimum clearances are 10 mm upwards, 10 mm forwards, 10 mm downwards, and 6 mm at the side. The spring-type terminals reduce wiring time compared to screw clamps — no re-torquing needed after thermal cycling.","metaTitle":"Siemens 3RT2025-2XF40-0LA2 SIRIUS Power Contactor, 110 V DC,","metaDescription":"Siemens SIRIUS 3RT2025-2XF40-0LA2 power contactor, 110 V DC coil, S0 size, spring-type terminals, rated switching capacity 10 A at 24 V DC. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"107 mm","Solid":"2x (1 ... 10 mm²)","Width":"45 mm","at DC":"30 ... 50 ms","Height":"102 mm","Upwards":"10 mm","Forwards":"10 mm","Downwards":"10 mm","Arcing Time":"10 ... 10 ms","At The Side":"6 mm","Rated Value":"110 V","Initial Value":"0.7","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Spring-type terminals","Type Of Voltage":"DC","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":"-40 ... +70 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715","Full-Scale Value":"1.25","at AC-3e maximum":"1 000 1/h","For Main Contacts":"18 ... 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 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Inrush Current Peak":"15 A","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":"3 hp","at 400 V rated value":"3 A","at 440 V rated value":"0.6 A","at 480 V rated value":"14 A","at 500 V rated value":"2 A","at 600 V rated value":"17 A","at 690 V rated value":"1 A","Design Of The Product":"With extended operating range","Instantaneous Contact":"1","Side-By-Side Mounting":"Yes","For Auxiliary Contacts":"20 ... 14","For Main Current Circuit":"spring-loaded terminals","at 110/120 V rated value":"1 hp","at 200/208 V rated value":"3 hp","at 220/230 V rated value":"5 hp","at 460/480 V rated value":"10 hp","at 575/600 V rated value":"15 hp","at AC-2 at AC-3e maximum":"1 000 1/h","Locked-Rotor Current Peak":"0.19 A","Relative Humidity Minimum":"10 %","Holding Current Mean Value":"19 mA","at maximum Ith rated value":"10 mm²","Of Main Circuit Rated Value":"6 kV","at AC-3 rated value maximum":"690 V","at maximum AC-1 rated value":"10 mm²","at AC in hot operating state":"2.7 W","at AC-2 at 400 V rated value":"7.5 kW","at AC-3e rated value maximum":"690 V","at AC-4 at 400 V rated value":"15.5 A","Substance Prohibitance (Date)":"10/01/2009","Design Of The Surge Suppressor":"with varistor","Duration Of Inrush Current Peak":"30 µs","Locked-Rotor Current Mean Value":"0.13 A","Duration Of Locked-Rotor Current":"180 ms","Of Auxiliary Circuit Rated Value":"6 kV","For Auxiliary And Control Circuit":"spring-loaded terminals","Function Module For Communication":"No","Product Function Bus 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":"1.6 W","closing power of magnet coil at DC":"13.2 W","holding power of magnet coil at DC":"1.3 W","At Contactor For Auxiliary Contacts":"Spring-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":"0.9 W","for AWG cables for auxiliary contacts":"2x (20 ... 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)","Number Of Poles For Main Current Circuit":"3","Product Function Short Circuit Protection":"No","mirror contact according to IEC 60947-4-1":"Yes","with low demand rate according to SN 31920":"40 %","Finely Stranded Without Core End Processing":"2x (0.5 ... 2.5 mm²)","with high demand rate according to SN 31920":"73 %","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","up to 40 °C according to IEC 60077 rated value":"40 A","up to 70 °C according to IEC 60077 rated value":"30 A","Limited To 1 S Switching At Zero Current Maximum":"225 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"225 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"189 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"140 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"115 A; 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","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)","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":"https://cdn.aoctrl.com/62725a76502e5d97734febdc15741b4c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=218858&mlfb=3RT2025-2XF40-0LA2","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2025-2XF40-0LA2/alternatives.json"},"ai":{"faq":[{"question":"What are the key dimensions for panel layout?","answer":"Width 45 mm, height 102 mm, depth 107 mm. Minimum clearances: 10 mm upwards, forwards, and downwards; 6 mm at the side."},{"question":"What wire sizes does the spring terminal accept?","answer":"Main contacts accept 2x (1 to 10 mm²) solid or stranded. Auxiliary contacts accept 2x (0.5 to 2.5 mm²)."},{"question":"What is the DC switching capacity at various voltages?","answer":"Rated at 10 A at 24 V DC, 2 A at 48 V, 2 A at 60 V, 1 A at 110 V, 0.9 A at 125 V, and 0.3 A at 220 V."},{"question":"Can this contactor replace a 3RT2024-2BB40 without rewiring?","answer":"Both are S0 frame contactors with similar mounting and terminal ranges, but the coil voltage and terminal type differ. The 3RT2025-2XF40-0LA2 uses a 110 V DC coil and spring terminals; verify the existing coil circuit and wiring method before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2025-2XF40-0LA2","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/3RT2025-2XF40-0LA2 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}}