{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2025-2AG24","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2025-2AG24","canonicalUrl":"https://aoctrl.com/siemens/3RT2025-2AG24","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2025-2AG24","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2025-2AG24 power contactor, size S0, 24 VDC coil, spring-type terminals, screw and snap-on mounting on 35 mm DIN rail.","salesMarkdown":"The AC-4 rating drops to 300 cycles per hour, reflecting the heavier duty of plugging or inching operations. The contactor mounts via screw or snap-on onto a 35 mm DIN rail per DIN EN 60715, with a mounting position that allows +/-180° rotation on a vertical surface and +/-22.5° tilt forward or backward. The 24 VDC coil draws 6 A at rated value, which is the pickup current — the holding current will be lower. This matters for DC supply sizing, especially if multiple contactors pull in simultaneously. These are the AC-3 motor ratings; the actual load current must be within these limits for reliable switching without contact welding. The spring-type terminals on the coil save wiring time compared to screw terminals — no torque driver needed. ## Integration notes Wire range for solid or stranded conductors is 1 to 10 mm² for the main circuit, and 2x (0.5 to 2.5 mm²) for the coil terminals. The spring-type terminals accept ferruled or bare wire; strip length is not specified here but typically 10 mm for this terminal type. The contactor has no built-in auxiliary switch block — if you need aux contacts for status feedback or interlocking, order a separate auxiliary switch block that mounts on the S0 frame. Dimensions are 45 mm wide, 102 mm high, and 144 mm deep. The S0 frame is one of the most common sizes, so panel cutouts and busbar systems for this footprint are widely available.","metaTitle":"Siemens 3RT2025-2AG24 SIRIUS Power Contactor, S0, 24 VDC","metaDescription":"Siemens SIRIUS 3RT2025-2AG24 power contactor, size S0, 24 VDC coil, spring-type terminals. Rated for AC-3 switching at 1000 cycles/h. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"144 mm","Solid":"1 ... 10 mm²","Width":"45 mm","at AC":"4 ... 16 ms","title":"3RT2025-2AG24","Height":"102 mm","Upwards":"10 mm","Forwards":"10 mm","Stranded":"1 ... 10 mm²","at 50 Hz":"0.25","at 60 Hz":"0.28","Downwards":"10 mm","Arcing Time":"10 ... 10 ms","At The Side":"6 mm","description":"power contactor, AC-3e/AC-3, 17 A, 7.5 kW / 400 V, 3-pole, 110 V AC, 50/60 Hz, auxiliary contacts: 2 NO + 2 NC, spring-loaded terminal, size: S0, removable auxiliary switch","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Spring-type terminals","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":"No","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715","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","Product Designation":"Power contactor","at 24 V rated value":"6 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 50 Hz rated value":"110 V","at 500 V rated value":"2 A","at 60 Hz rated value":"110 V","at 600 V rated value":"17 A","at 690 V rated value":"1 A","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","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"6 kV","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"1.8 W","at AC-3e rated value maximum":"690 V","at AC-4 at 400 V rated value":"15.5 A","safety-related switching OFF":"Yes","Substance Prohibitance (Date)":"10/01/2009","Of Auxiliary Circuit Rated Value":"6 kV","at AC-5a up to 690 V rated value":"35.2 A","at AC-5b up to 400 V rated value":"14.1 A","For Auxiliary And Control Circuit":"spring-loaded terminals","Function Module For 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":"7.9 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":"0.6 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","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","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 %","Type Of Voltage Of The Control Supply Voltage":"AC","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)","minimum cross-section in main circuit at maximum AC-1 rated value":"10 mm²","number of NC contacts for auxiliary contacts instantaneous contact":"2","number of NO contacts for auxiliary contacts instantaneous contact":"2","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ce2a3a629357c4ad4f78d2956c3f7876.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=488572&mlfb=3RT2025-2AG24"},"ai":{"faq":[{"question":"What are the key ratings for this contactor?","answer":"It is a 3-pole SIRIUS S0 contactor with a 24 VDC coil, rated for AC-3 switching at 1000 cycles/h, with a mechanical life of 10,000,000 operations. Operating temperature range is -25 to +60 °C."},{"question":"Does this contactor include auxiliary contacts?","answer":"No, it ships without an auxiliary switch block. An add-on block is required for auxiliary contacts."},{"question":"What wire sizes does the spring terminal accept?","answer":"Main circuit terminals accept 1 to 10 mm² solid or stranded. Coil terminals accept 2x (0.5 to 2.5 mm²)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2025-2AG24","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/3RT2025-2AG24 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}}