{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1025-1XB40-0LA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1025-1XB40-0LA2","canonicalUrl":"https://aoctrl.com/siemens/3RT1025-1XB40-0LA2","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1025-1XB40-0LA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S0 power contactor, 24 V DC coil with varistor, 45 mm wide, screw terminals, AC-4 15.5 A at 400 V.","salesMarkdown":"Holds in at 0.7 of rated voltage. At 45 mm wide and 116 mm tall, it fits a standard panel layout. Main circuit terminals are screw-type, accepting 2x (0.5 to 1.5 mm²) solid or 2x (0.75 to 2.5 mm²) stranded, up to 2x 4 mm² max. Auxiliary terminals handle 2x (1 to 2.5 mm²) solid or 2x (2.5 to 6 mm²) stranded, max 2x 10 mm². That covers most panel wiring without needing ferrules. RoHS compliance date is 01.05.2012.","metaTitle":"Siemens 3RT1025-1XB40-0LA2 SIRIUS Power Contactor, 24 V DC,","metaDescription":"Siemens SIRIUS power contactor, size S0, 24 V DC coil with varistor, AC-4 rated 15.5 A at 400 V, screw terminals, DIN-rail mount. Current lifecycle. Source via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"101 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"45 mm","Height":"116 mm","Upwards":"10 mm","Forwards":"10 mm","Downwards":"10 mm","At The Side":"10 mm","Rated Value":"24 V","Initial Value":"0.7","Type Of Voltage":"DC","lifecycle_stage":"current","During Operation":"-40 ... +70 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Full-Scale Value":"1.25","Size Of Contactor":"S0","Solid Or Stranded":"2x (1 ... 2,5 mm²), 2x (2,5 ... 6 mm²), max. 2x 10 mm²","Product Brand Name":"SIRIUS","Product Designation":"Power contactor","at 24 V rated value":"10 A","at 60 V rated value":"2 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.3 A","at 230 V rated value":"3 hp","at 400 V rated value":"3 A","at 500 V rated value":"10 kW","at 690 V rated value":"11 kW","Instantaneous Contact":"0","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at 110/120 V rated value":"1 hp","at 200/208 V rated value":"5 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","Of Main Circuit Rated Value":"6 kV","at AC-4 at 400 V rated value":"15.5 A","Substance Prohibitance (Date)":"01.05.2012 00:00:00","Design Of The Surge Suppressor":"with varistor","at AWG cables for main contacts":"2x (16 ... 12), 2x (14 ... 10), 1x 8","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":"fuse gL/gG: 25 A","closing power of magnet coil at DC":"6 W","holding power of magnet coil at DC":"5.4 W","reference code acc. to IEC 81346-2":"Q","With Type Of Coordination 1 Required":"fuse gL/gG: 63 A","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","operational current at AC-12 maximum":"10 A","number of NO contacts for main contacts":"3","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","Product Function Short Circuit Protection":"No","number of NC contacts for auxiliary contacts":"2","number of NO contacts for auxiliary contacts":"2","Type Of Voltage Of The Control Supply Voltage":"DC","touch protection on the front acc. to IEC 60529":"finger-safe, for vertical contact from the front","protection class IP on the front acc. to IEC 60529":"IP20","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":"fuse gL/gG: 10 A","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=213988&mlfb=3RT1025-1XB40-0LA2","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1025-1XB40-0LA2/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation is available for this part?","answer":"RoHS compliance is confirmed with a date of 01.05.2012. Standard Siemens declarations for CE, UL, and CSA are typical for the SIRIUS series, though not explicitly listed here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1025-1XB40-0LA2","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/3RT1025-1XB40-0LA2 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}}