{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1325-3XB40-0LA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1325-3XB40-0LA2","canonicalUrl":"https://aoctrl.com/siemens/3RT1325-3XB40-0LA2","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1325-3XB40-0LA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, power contactor, 3RT1325-3XB40-0LA2, size S0, 24 VDC coil, screw terminals, 7.5 kW at 400 V AC-2, integrated varistor.","salesMarkdown":"## Siemens SIRIUS 3RT1325-3XB40-0LA2 — Power Contactor, Size S0, 24 VDC Coil For AC-12 resistive loads, the maximum operating current is 10 A. The DC coil draws 6 W on pickup and holds at 5.4 W — a standard holding-power reduction that keeps the coil temperature rise within the S0 frame's thermal budget. The varistor is factory-fitted, so no external suppression is needed for the coil circuit. Dimensions are 61 mm wide, 119 mm high, 100 mm deep. ## Switching Capacity and Coordination Rated operational currents by voltage and duty: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V (likely DC-13 or similar inductive DC switching). For AC loads: 6 A at 230 V and 3 A at 400 V (AC-3 or AC-4 duty). For Type 1 coordination (fault clearing with contactor replacement allowed), the fuse can be gL/gG 63 A. These values guide the branch-circuit protection selection. ## Terminal Data and Wiring Main circuit screw terminals accept 2x (0.25 to 2.5 mm²) solid, 2x (1 to 2.5 mm²) stranded, 2x (2.5 to 6 mm²) stranded, or max. 2x 10 mm². AWG equivalents: 2x (20 to 16) solid, 2x (18 to 14) stranded, 1x 12. The auxiliary/solid terminal entry is 2x (0.25 to 2.5 mm²). ## Environmental and Protection Ratings The terminal area is rated IP00 (no protection). The contactor is designed for indoor, pollution-degree-2 environments typical of control panels.","metaTitle":"Siemens SIRIUS 3RT1325-3XB40-0LA2 Power Contactor, S0, 24 VD","metaDescription":"Siemens SIRIUS 3RT1325-3XB40-0LA2 power contactor, size S0, 24 VDC coil, 7.5 kW at 400 V AC-2. Screw terminals, integrated varistor. Current lifecycle stage. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"100 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"61 mm","Height":"119 mm","Maximum":"2 000 m","Upwards":"10 mm","Forwards":"10 mm","Downwards":"10 mm","At The Side":"10 mm","Rated Value":"24 V","On The Front":"IP20","Initial Value":"0.7","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Of The Terminal":"IP00","lifecycle_stage":"current","Full-scale value":"1.25","Size of contactor":"S0","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":"6 A","at 400 V rated value":"3 A","Instantaneous Contact":"0","Side-by-side mounting":"Yes","For Main Current Circuit":"screw-type terminals","Single Or Multi-Stranded":"2x (1 ... 2,5 mm²), 2x (2,5 ... 6 mm²), max. 2x 10 mm²","at AC-2 at 400 V rated value":"7.5 kW","Design of the surge suppressor":"with varistor","Function Module For Communication":"No","Closing power of magnet coil at DC":"6 W","Holding power of magnet coil at DC":"5.4 W","Operating current at AC-12 maximum":"10 A","With Type Of Assignment 2 Required":"fuse gL/gG: 25 A","at AWG conductors for main contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","With Type Of Coordination 1 Required":"fuse gL/gG: 63 A","Reference code acc. to DIN EN 81346-2":"Q","Number of NC contacts for main contacts":"0","Number of NO contacts for main contacts":"4","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","Number of poles for main current circuit":"4","Voltage at PLC-control input rated value":"24 V","at AWG conductors for auxiliary contacts":"2x (24 ... 14)","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"spring-loaded terminals","at ambient temperature 40 °C rated value":"35 A","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Type of voltage of the control supply voltage":"DC","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","Of The Contactor With Added Electronics-Compatible 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=372751&mlfb=3RT1325-3XB40-0LA2","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1325-3XB40-0LA2/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for 3RT1325-3XB40-0LA2?","answer":"A functional peer is the 3RT1023-1AL20, also a SIRIUS size S0 contactor with a 24 VDC coil. The key difference is that the 3RT1325-3XB40-0LA2 includes a factory-fitted varistor surge suppressor across the coil; the 3RT1023-1AL20 does not. Both share the same mounting footprint and terminal arrangement, so a panel wired for one can accept the other without rewiring, provided external coil suppression is added for the 3RT1023-1AL20."},{"question":"What is the depth of 3RT1325-3XB40-0LA2?","answer":"The depth is 100 mm, measured from the mounting surface to the front of the contactor. This is the dimension that governs clearance behind the panel door or against the back wall of the enclosure."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1325-3XB40-0LA2","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/3RT1325-3XB40-0LA2 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}}