{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1325-1AU00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1325-1AU00","canonicalUrl":"https://aoctrl.com/siemens/3RT1325-1AU00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1325-1AU00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 35 A rated current at 40 °C, 4-pole, 4 NO main contacts, size S0, screw-type terminals, 3RT1325-1AU00.","salesMarkdown":"The Siemens SIRIUS 3RT1325-1AU00 is a 4-pole power contactor in the size S0 frame, rated for 35 A at 40 °C ambient. Its 4 normally open main contacts handle motor loads up to 7.5 kW at 400 V AC (AC-2 duty), and it mounts via screw or snap-on onto a 35 mm DIN rail per EN 50022. The 7.5 kW AC-2 figure covers wound-rotor motor switching; for standard squirrel-cage motors (AC-3), the same contactor typically supports a similar power class, though the exact AC-3 rating is not listed here. Main and auxiliary circuits use screw-type terminals. The main contacts accept solid or stranded conductors: 2x (1–2.5 mm²) or 2x (2.5–6 mm²), max 2x 10 mm². Auxiliary/control terminals take 2x (0.5–1.5 mm²) or 2x (0.75–2.5 mm²), max 2x (0.75–4 mm²). AWG equivalents: main 2x (20–16) or 2x (18–14), single 12 AWG. Side-by-side mounting is permitted with 6 mm spacing at the side. The enclosure carries IP20 on the front, IP00 at the terminals — the terminal area is not finger-safe until the panel cover is on. The coil operates at 50 Hz, with a voltage tolerance of 0.8 to 1.1 times the rated value. Switching capacity at 24 V is 10 A, derating to 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V. ## Short-circuit coordination and environmental limits","metaTitle":"Siemens 3RT1325-1AU00 SIRIUS Power Contactor, 35 A, 4-Pole","metaDescription":"Siemens SIRIUS 3RT1325-1AU00 power contactor, 35 A rated at 40 °C, 4-pole, 4 NO main contacts, size S0. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"91 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"61 mm","Height":"85 mm","at 50 Hz":"0.8 ... 1.1","At The Side":"6 mm","On The Front":"IP20","1 Rated Value":"50 Hz","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","During Operation":"-25 ... +60 °C","Size Of Contactor":"S0","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","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 400 V rated value":"7.5 kW","at 50 Hz rated value":"240 V","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","With Type Of Assignment 2 Required":"fuse gL/gG: 25 A","operating current at AC-12 maximum":"10 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 (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Number Of Poles For Main Current Circuit":"4","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"screw-type terminals","at ambient temperature 40 °C rated value":"35 A","apparent holding power of magnet coil at AC":"7.8 V·A","apparent pick-up power of magnet coil at AC":"61 V·A","Type Of Voltage Of The Control Supply Voltage":"AC","operating current at AC-15 at 230 V rated value":"6 A","operating current at AC-15 at 400 V rated value":"3 A","Inductive Power Factor With Closing Power Of The Coil":"0.82","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.24","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","type of connectable conductor cross-sections at AWG conductors for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12"}},"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=329808&mlfb=3RT1325-1AU00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1325-1AU00/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1325-1AU00 and how do I get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request — availability and current pricing are confirmed at quote time."},{"question":"What is the rated current of this contactor?","answer":"The 3RT1325-1AU00 is rated for 35 A at 40 °C ambient temperature."},{"question":"What motor power does it support at 400 V?","answer":"At 400 V AC-2 duty, it supports motor loads up to 7.5 kW."},{"question":"What compliance documentation is available?","answer":"The product carries the SIRIUS brand from Siemens and is designed to IEC/EN standards. Specific RoHS, REACH, and UL documentation should be verified at time of order, as the evidence does not list these certifications explicitly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1325-1AU00","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/3RT1325-1AU00 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}}