{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EM5000-0KB00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EM5000-0KB00","canonicalUrl":"https://aoctrl.com/siemens/4EM5000-0KB00","factsUrl":"https://aoctrl.com/api/mcp/products/4EM5000-0KB00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EM5000-0KB00 commutating choke for converter, 1-phase, 250V AC, 26A max / 23.4A rated, 1.2mH, IP00, screw terminals.","salesMarkdown":"The Siemens 4EM5000-0KB00 is a single-phase commutating choke (line reactor) for a converter — it sits between the AC line and the converter's input rectifier to limit current rise, reduce harmonics, and protect the DC bus from line notching. You'll find it in a drive cabinet or power supply section, bolted in with screw terminals and no enclosure (IP00), so it's meant for inside a panel where the cabinet provides the real protection. Rated at 250 V AC and 50 Hz — standard European line voltage. The maximum continuous current is 26 A with a rated (nominal) current of 23.4 A. At DC the rated current is higher at 31.8 A, which matters if you're using this on the output side of a converter or in a DC link application. Inductance is 1.2 mH with a relative inductive voltage drop of 4% at rated current — that's a typical impedance for a commutating choke, enough to smooth the current waveform without dropping excessive voltage across the reactor. Power losses split between the coil (12.4 W) and iron core (22.8 W), totaling about 35 W of heat to dissipate inside the panel. Thermal class B per IEC 60085 means the insulation system is good for a 130 °C hot-spot temperature, and the ambient rating is 50 °C — fine for most ventilated cabinets but derate if you're cramming it into a sealed box. Dimensions are 0.115 m deep, 0.097 m wide, 0.111 m high — about 115 × 97 × 111 mm. That's a compact footprint for a 26 A choke; it'll fit on a backplate or DIN-rail adapter plate. The screw-type terminals accept standard ring or fork lugs, so no special crimping tools needed. IP00 means no built-in touch protection — the panel builder needs to provide finger-safe covers or a locked cabinet door.","metaTitle":"4EM5000-0KB00 Commutating Choke, 26A Max, 250V AC, 1.2mH","metaDescription":"Siemens 4EM5000-0KB00 commutating choke for converter applications. 26A max, 250V AC, 1.2mH, IP00, screw terminals. Mature lifecycle, sourced to order. Request RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.115m","Width":"0.097m","Height":"0.111m","Maximum":"26A","Rated Value":"23.4A","Phase number":"1","Type of voltage":"AC","lifecycle_stage":"mature","at DC rated value":"31.8A","Product designation":"Kommut.-Drossel f. Stromrichter","Protection class IP":"IP00","Inductivity rated value":"0.0012H","Power loss [W] of the coil":"12.4W","Operating voltage rated value":"250V","Ambient temperature rated value":"50°C","Operating frequency rated value":"50Hz","Power loss [W] of the iron core":"22.8W","Thermal class acc. to IEC 60085":"B","Type of electrical connection for main current circuit":"screw-type terminals","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=510966&mlfb=4EM5000-0KB00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EM5000-0KB00/alternatives.json"},"ai":{"faq":[{"question":"Can I use 5SL6606-7YA as a substitute for 4EM5000-0KB00?","answer":"No — the 5SL6606-7YA is a SENTRON miniature circuit breaker, not a commutating choke. It serves a completely different function (overcurrent protection vs. line filtering) and won't drop into a converter input circuit without rewiring the whole design."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EM5000-0KB00","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/4EM5000-0KB00 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}}