{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2325-1AC20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2325-1AC20","canonicalUrl":"https://aoctrl.com/siemens/3RT2325-1AC20","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2325-1AC20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S0 contactor 3RT2325-1AC20, 24 V AC 50/60 Hz coil, 16-8 A main contact rating, screw-type terminals, screw and snap-on DIN rail mounting.","salesMarkdown":"## Active SIRIUS S0 — 24 V AC Coil, Screw Terminals The 3RT2325-1AC20: Rated main contact current of 16…8 A (size S0 frame) suits motor loads in the lower fractional-horsepower range — think small pumps, fans, or conveyor drives in control panels. The 10 A auxiliary contact rating at 24 V AC and 230 V AC handles PLC input feedback or pilot-duty signalling. ## DIN Rail Fit and Wiring Clearances Mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715. Dimensions are 97 mm deep, 60 mm wide, 85 mm high — standard S0 footprint that drops into existing panel layouts without re-spacing. Wiring clearances: 10 mm upwards, 10 mm forwards, 10 mm downwards, 6 mm at the side. Main contact terminals accept stranded wire from 1 to 10 mm²; auxiliary terminals take 2x (0.5…1.5 mm²) solid or 2x (0.75…2.5 mm²) stranded. That 10 mm² main terminal capacity covers most S0 motor branch circuits without needing a ferrule. ## Nacelle-Ready Temperature Range and Life Rated for operation from -25 to +60 °C and storage from -55 to +80 °C — wide enough for unheated enclosures in wind turbine nacelles or outdoor industrial shelters. The 10 million typical mechanical cycles mean this contactor outlasts many downstream loads before the armature wears. Mounting position is flexible: ±180° rotation on a vertical surface, plus ±22.5° tilt forward/backward. That helps when the panel layout is tight and the contactor has to sit at an angle to clear gland plates or busbars. ## Coil Inrush and Control Transformer Sizing Coil inrush current is 0.25 A at 50 Hz and 0.28 A at 60 Hz — a 24 V AC control transformer sized for 0.5 A per contactor gives headroom for the inrush without voltage sag that could cause the contactor to drop out during pick-up. Arcing time is 10…10 ms at AC (tightly controlled), with a break time of 4…16 ms. These switching times are consistent enough for coordination with upstream motor-protective breakers in a Type 1 or Type 2 coordination scheme.","metaTitle":"Siemens 3RT2325-1AC20 SIRIUS S0 Contactor, 24 V AC Coil","metaDescription":"Siemens 3RT2325-1AC20 SIRIUS S0 contactor, 24 V AC 50/60 Hz coil, 16-8 A main contacts, screw terminals, DIN rail mount. Active production, quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"97 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Width":"60 mm","at AC":"4 ... 16 ms","title":"3RT2325-1AC20","Height":"85 mm","Upwards":"10 mm","Forwards":"10 mm","Stranded":"1 ... 10 mm²","at 50 Hz":"0.25","at 60 Hz":"0.28","Downwards":"10 mm","Attachable":"2","Arcing Time":"10 ... 10 ms","At The Side":"6 mm","description":"contactor AC-1, 35 A, 400 V / 40 °C, 4-pole, 24 V AC, 50/60 Hz, auxiliary contacts: 1 NO + 1 NC, screw terminal, size: S0","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","Type Of Voltage":"AC","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","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":"Contactor","at 24 V rated value":"10 A","at 48 V rated value":"2 A","at 60 V rated value":"6 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":"10 A","at 400 V rated value":"3 A","at 50 Hz rated value":"24 V","at 500 V rated value":"2 A","at 60 Hz rated value":"24 V","at 600 V rated value":"0.1 A","at 690 V rated value":"1 A","Instantaneous Contact":"1","Side-By-Side Mounting":"Yes","For Auxiliary Contacts":"20 ... 14","For Main Current Circuit":"screw-type terminals","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"6 kV","at AC in hot operating state":"7.6 W","at AC-3 at 400 V rated value":"7.5 kW","at AC-4 at 400 V rated value":"7.5 kW","Substance Prohibitance (Date)":"10/01/2009","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":"gG: 20 A (690 V, 100 kA)","At Contactor For Auxiliary Contacts":"Screw-type terminals","operating frequency at AC-1 maximum":"1 000 1/h","With Type Of Coordination 1 Required":"gG: 63 A (690 V, 100 kA)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"1.9 W","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","number of NO contacts for main contacts":"4","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":"4","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Product Function Short Circuit Protection":"No","mirror contact according to IEC 60947-4-1":"Yes","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","Type Of Voltage Of The Control Supply Voltage":"AC","Limited To 1 S Switching At Zero Current Maximum":"Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"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","For Short-Circuit Protection Of The Auxiliary Switch Required":"gG: 10 A (690 V, 1 kA)","minimum cross-section in main circuit at maximum AC-1 rated value":"10 mm²","Of The Auxiliary And Control Circuit With Degree Of Pollution 3 Rated Value":"690 V","Design Of The Miniature Circuit Breaker For Short-Circuit Protection Of The Auxiliary Switch Required":"gG: 10 A (230 V, 400 A)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$138.62","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b7f38e9f9d86e59b04eac68bfea90c40.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=70360&mlfb=3RT2325-1AC20"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2325-1AC20","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/3RT2325-1AC20 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}