{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EU4321-0AY00-0A","brand":"Siemens","brandSlug":"siemens","productSlug":"4EU4321-0AY00-0A","canonicalUrl":"https://aoctrl.com/siemens/4EU4321-0AY00-0A","factsUrl":"https://aoctrl.com/api/mcp/products/4EU4321-0AY00-0A","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EU4321-0AY00-0A commutating choke for converters, 3-phase, 690V AC, 50Hz, 882A rated (980A max), 41µH, IP00, thermal class H, flat-type terminals.","salesMarkdown":"The inductance is 41 µH with a relative inductive voltage drop of 4% at rated conditions. This is a high-current line reactor designed to limit di/dt and reduce harmonic distortion on the input side of a variable-frequency drive or DC drive converter. The 980 A maximum (882 A rated) at 690 V AC places this choke squarely in the heavy industrial drive segment — think 500+ kW motors on pumps, conveyors, or compressors in a 690 V plant. The 41 µH inductance is the actual energy-storage figure that governs the current ripple smoothing. IP00 means no enclosure — this is a chassis-mount component intended for a ventilated cabinet. The 0.46 m width, 0.435 m height, and 0.265 m depth define the physical footprint; plan for adequate clearance around the flat-type terminals for busbar or cable lugs. The 680 W coil loss plus 325 W iron core loss totals about 1 kW of heat to vent from the enclosure. Thermal class H (180 °C) winding insulation means the choke can run hot without degrading — relevant if your ambient hits 40 °C and the cabinet has limited airflow. The EN 61558-2-20 compliance covers safety of transformers and reactors; the UL/CSA recognition means it's accepted for North American panels without additional agency review.","metaTitle":"Siemens 4EU4321-0AY00-0A Commutating Choke, 980A, 690V","metaDescription":"Siemens 4EU4321-0AY00-0A 3-phase commutating choke for converters. Rated 882A (980A max), 690V AC, 50Hz, 41µH, IP00, thermal class H. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.265m","Width":"0.46m","Height":"0.435m","Maximum":"980A","Rated Value":"882A","Peak current":"1 225A","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","at DC rated value":"1 200.9A","Product designation":"Kommut.-Drossel f. Stromrichter","Protection class IP":"IP00","Inductivity rated value":"0.000041H","Power loss [W] of the coil":"680W","Operating voltage rated value":"690V","Ambient temperature rated value":"40°C","Operating frequency rated value":"50Hz","Power loss [W] of the iron core":"325W","Thermal class acc. to IEC 60085":"H","Type of electrical connection for main current circuit":"flat connector","Relative inductive drop in voltage on the measurement level current, voltage and frequency":"4%"}},"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=235219&mlfb=4EU4321-0AY00-0A","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EU4321-0AY00-0A/alternatives.json"},"ai":{"faq":[{"question":"What are the key electrical ratings for 4EU4321-0AY00-0A?","answer":"It is a 3-phase commutating choke rated 690 V AC, 50 Hz, with a maximum continuous current of 980 A, rated current of 882 A, peak current of 1 225 A, and inductance of 41 µH. The relative inductive voltage drop is 4% at rated current."},{"question":"What compliance standards does this choke meet?","answer":"It is designed to EN 61558-2-20 and carries UL/CSA recognition. The insulation system is thermal class H per IEC 60085. Protection class is IP00."},{"question":"Where can I buy 4EU4321-0AY00-0A?","answer":"This part is sourced and quoted to order against an RFQ through our independent distribution channel. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial offer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EU4321-0AY00-0A","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/4EU4321-0AY00-0A 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}}