{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1025-3AL16","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1025-3AL16","canonicalUrl":"https://aoctrl.com/siemens/3RT1025-3AL16","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1025-3AL16","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1025-3AL16 power contactor, size S0, 3-pole, 230 V 60 Hz coil, screw-type terminals, 10 A AC-12, 7.5 kW AC-2 at 400 V.","salesMarkdown":"It carries three main NO contacts and one auxiliary contact block with 2 contacts (NO/NC configurable per the block). The coil is rated for 230 V at 60 Hz, with an operating range of 0.8 to 1.1 times the rated voltage at that frequency. For motor duty, it is rated at 7.5 kW for AC-2 use at 400 V (slip-ring motors, wound-rotor) and 15.5 A for AC-4 at 400 V (plugging, inching). For resistive loads (AC-12), the maximum operating current is 10 A. At 500 V, the motor rating is 10 kW; at 690 V, it reaches 11 kW. Side-by-side mounting is permitted with zero clearance — no derating required for adjacent units. Dimensions: 65 mm wide, 85 mm high, 91 mm deep. Main circuit terminals accept screw-type connections: solid conductors 2x (0.25 to 2.5 mm²), stranded 2x (1 to 2.5 mm²) or 2x (2.5 to 6 mm²), and up to 2x 10 mm² or 1x 8 AWG. The kit is complete with terminals and mounting hardware — no separate accessory pack needed. For type 1 coordination (contactor may need replacement after fault), use gL/gG 63 A.","metaTitle":"Siemens 3RT1025-3AL16 SIRIUS Power Contactor, S0, 230 V 60 H","metaDescription":"Siemens 3RT1025-3AL16 SIRIUS power contactor, size S0, 3-pole, 230 V 60 Hz coil, screw terminals, 10 A AC-12, 7.5 kW AC-2 at 400 V. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"91 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"65 mm","Height":"85 mm","Maximum":"2 000 m","at 60 Hz":"0.8 ... 1.1","At The Side":"6 mm","On The Front":"IP20","1 Rated Value":"60 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 230 V rated value":"6 A","at 400 V rated value":"3 A","at 500 V rated value":"10 kW","at 60 Hz rated value":"230 V","at 690 V rated value":"11 kW","Instantaneous Contact":"2","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","at AC-4 at 400 V rated value":"15.5 A","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 (16 ... 12), 2x (14 ... 10), 1x 8","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":"3","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","Number of poles for main current circuit":"3","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":"40 A","Apparent holding power of magnet coil at AC":"7.5 V·A","Apparent pick-up power of magnet coil at AC":"69 V·A","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Type of voltage of the control supply voltage":"AC","Inductive power factor with closing power of the coil":"0.76","Inductive power factor with the holding power of the coil":"0.28","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=117915&mlfb=3RT1025-3AL16","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1025-3AL16/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this contactor?","answer":"The 3RT1025-3AL16 is a size S0 power contactor with a 230 V 60 Hz coil. For motor duty, it is rated at 7.5 kW AC-2 at 400 V and 15.5 A AC-4 at 400 V. For resistive loads, the maximum AC-12 current is 10 A. The main contacts are 3 NO, with an auxiliary contact block providing 2 additional contacts."},{"question":"What is the mounting footprint and terminal capacity?","answer":"The contactor mounts on a 35 mm DIN rail (DIN EN 50022) and is 65 mm wide, 85 mm high, and 91 mm deep. Side-by-side mounting is allowed with no clearance. Main circuit terminals accept solid conductors 2x (0.25 to 2.5 mm²) and stranded up to 2x 10 mm² or 1x 8 AWG."},{"question":"What fuse coordination is required?","answer":"For type 2 coordination (no damage to the contactor), use a gL/gG 25 A fuse upstream. For type 1 coordination (contactor may need replacement), use a gL/gG 63 A fuse."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1025-3AL16","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/3RT1025-3AL16 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}}