{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EM5005-8CB00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EM5005-8CB00","canonicalUrl":"https://aoctrl.com/siemens/4EM5005-8CB00","factsUrl":"https://aoctrl.com/api/mcp/products/4EM5005-8CB00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens, Kommut.-Drossel f. Stromrichter, 4EM5005-8CB00, 1-phase, 400V AC, 22.4A max / 20.16A rated, 2.2mH, IP00, screw-type terminals.","salesMarkdown":"The Siemens 4EM5005-8CB00 is a single-phase commutating choke (Kommut.-Drossel f. Stromrichter) designed for converter applications. It sits on the AC line side of a variable-frequency drive or DC drive converter to limit the rate of rise of current during commutation — reducing harmonic stress on the rectifier diodes and smoothing the DC-link ripple. The 22.4 A maximum current and 20.16 A rated current (at 400 V AC, 50 Hz) size it for a 1-phase converter input drawing roughly that load; the 2.2 mH inductance and 4 % relative inductive voltage drop define the impedance the converter sees at the switching frequency. Rated at 400 V AC operating voltage and 50 Hz, this choke is built for European-standard 1-phase line supplies feeding a converter input. The 22.4 A maximum (Ithmax) is the thermal limit under worst-case continuous load; the 20.16 A rated current (I LN) is the nominal design point where the choke's temperature rise stays within its thermal class B insulation (IEC 60085). The 27.4 A DC-rated value tells you the same core can handle a higher DC current if the converter's DC link is the load path — useful if you are using it as a DC-link choke in a single-phase rectifier circuit. Power loss splits between the coil (18 W) and the iron core (19.7 W), totalling about 38 W at rated load. That heat must be dissipated into the surrounding air — the IP00 enclosure means no housing, so the choke is intended for mounting inside a cabinet where ambient stays at or below the 40 °C rated ambient temperature. Screw-type terminals accept the main circuit conductors; no special tooling needed for panel wiring. ## Deployment context: panel integration At 115 mm deep, 97 mm wide, and 111 mm tall, the choke occupies a compact footprint for its current class — about the size of a small contactor. Screw terminals accept up to 4 mm² stranded or solid wire (typical for a 20 A circuit). Mounting is via the integral foot or through the core bolt holes; no DIN-rail adapter is standard, so panel-mounting with M4 or M5 hardware is the expected method.","metaTitle":"Siemens 4EM5005-8CB00 Commutating Choke, 22.4A, 400V","metaDescription":"Siemens 4EM5005-8CB00 commutating choke for converters. Rated 22.4A max, 20.16A nominal, 400V AC, 2.2mH, IP00, screw terminals. Mature lifecycle, available to order.","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":"22.4A","Rated Value":"20.16A","Phase number":"1","Type of voltage":"AC","lifecycle_stage":"mature","at DC rated value":"27.4A","Product designation":"Kommut.-Drossel f. Stromrichter","Protection class IP":"IP00","Inductivity rated value":"0.0022H","Power loss [W] of the coil":"18W","Operating voltage rated value":"400V","Ambient temperature rated value":"40°C","Operating frequency rated value":"50Hz","Power loss [W] of the iron core":"19.7W","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=295316&mlfb=4EM5005-8CB00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EM5005-8CB00/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EM5005-8CB00","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/4EM5005-8CB00 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}}