{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EM5008-0BK00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EM5008-0BK00","canonicalUrl":"https://aoctrl.com/siemens/4EM5008-0BK00","factsUrl":"https://aoctrl.com/api/mcp/products/4EM5008-0BK00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIDAC, smoothing choke, 4EM5008-0BK00, 1-phase, 110A DC, 800V, 60 µH, IP00, free cable ends.","salesMarkdown":"## Smoothing choke for DC-link filtering The Siemens SIDAC 4EM5008-0BK00 is a 1-phase smoothing choke rated for 110 A DC maximum, 99 A nominal, with an 800 V insulation voltage and 60 µH inductance. It is designed for DC-link ripple filtering in drives and power supplies, built to EN 61558-2-20. The 2500 Hz operating frequency suits it for high-frequency switching converter outputs where reducing current ripple protects downstream capacitors and extends semiconductor life. The 110 A maximum DC current and 800 V rated voltage define the continuous load envelope — this choke will saturate above that current, so it must be sized to the drive's peak DC bus current, not the motor nameplate. The 60 µH inductance at 2500 Hz gives a specific impedance; verify it matches your converter's switching frequency and ripple current target. Thermal class F (155 °C) insulation per IEC 60085 means it can run hot in a closed panel, but the 1 W copper loss plus 1 W iron loss (2 W total) is modest — no forced cooling needed in most cabinets. ## IP00 open-frame construction IP00 means no enclosure — the choke is a bare wound component with free cable ends for termination. The free cable ends (0.2–2.5 mm² typical) let you wire directly to the DC bus terminals; no lug or connector is supplied. Dimensions are 97 mm wide × 87 mm high × 131 mm deep — fits a standard 100 mm DIN rail footprint but requires clearance around the magnetic field.","metaTitle":"Siemens 4EM5008-0BK00 SIDAC Smoothing Choke, 110A DC, 800V","metaDescription":"Siemens SIDAC 4EM5008-0BK00 smoothing choke rated 110A DC, 800V, 60 µH, IP00. EN 61558-2-20 compliant. Quoted on request.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.131m","Width":"0.097m","Height":"0.087m","Maximum":"110A","Rated Value":"99A","Phase number":"1","Energy content":"0.363W","Type of voltage":"DC","lifecycle_stage":"mature","Product brand name":"SIDAC","Product designation":"Glaettungsdrossel","Protection class IP":"IP00","Inductivity rated value":"0.00006H","Power loss [W] of the coil":"1W","Operating voltage rated value":"800V","Ambient temperature rated value":"40°C","Operating frequency rated value":"2 500Hz","Power loss [W] of the iron core":"1W","Thermal class acc. to IEC 60085":"F","Product function windings in parallel selectable":"No","Type of electrical connection for main current circuit":"free cable endings"}},"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=475225&mlfb=4EM5008-0BK00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EM5008-0BK00/alternatives.json"},"ai":{"faq":[{"question":"What is the 4EM5008-0BK00 used for?","answer":"It is a DC-link smoothing choke that filters ripple current from a single-phase rectifier or DC supply, reducing harmonic stress on capacitors and improving power quality in drives and power converters."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EM5008-0BK00","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/4EM5008-0BK00 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}}