{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EM5308-2CB00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EM5308-2CB00","canonicalUrl":"https://aoctrl.com/siemens/4EM5308-2CB00","factsUrl":"https://aoctrl.com/api/mcp/products/4EM5308-2CB00","rawCanonicalId":null},"summary":{"shortDescription":"SIDAC Glaettungsdrossel 4EM5308-2CB00, single-phase DC smoothing choke, rated 14 A DC, 0.025 H, 690 V, IP00, screw/tab terminals.","salesMarkdown":"The SIDAC 4EM5308-2CB00 is a single-phase DC smoothing choke rated 14 A DC, 0.025 H, 690 V, 300 Hz, thermal class B. IP00 rating means no enclosure. Screw/tab terminals accept ring lugs. Dimensions are 0.151 m by 0.151 m by 0.129 m. The 14 A DC current, 0.025 H inductance, and 690 V insulation voltage define fit. Coil loss is 46.8 W; iron-core loss is 1.1 W. The 300 Hz operating frequency is the ripple frequency the choke is designed to filter — typical for a 6-pulse rectifier on a 50 Hz line (300 Hz ripple) or a 60 Hz line (360 Hz). If your drive's switching frequency is higher (4 kHz, 8 kHz), this choke still provides DC-link smoothing but the core losses will increase; the 1.1 W iron loss figure is at 300 Hz, not at higher frequencies. For a PWM drive front-end, confirm the core material's frequency response with the manufacturer. Mounting: 0.151 m cube footprint. Screw/tab terminals face one side. IP00 body is bare assembly. Thermal: the 46.8 W coil loss plus 1.1 W core loss totals roughly 48 W of heat to reject. In a ventilated cabinet with natural convection, that's manageable; in a sealed NEMA 4X enclosure, forced airflow or a larger cabinet volume is needed to keep the ambient below 40 °C.","metaTitle":"SIDAC 4EM5308-2CB00 Smoothing Choke, 14A DC, 0.025H","metaDescription":"SIDAC 4EM5308-2CB00 single-phase DC smoothing choke. Rated 14A DC, 0.025H, 690V, IP00. Mature lifecycle; available to order. Quoted on request.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.129m","Width":"0.151m","Height":"0.151m","Phase number":"1","Energy content":"2.45W","Type of voltage":"DC","lifecycle_stage":"mature","Product brand name":"SIDAC","Product designation":"Glaettungsdrossel","Protection class IP":"IP00","Current at AC maximum":"14A","Inductivity rated value":"0.025H","Power loss [W] of the coil":"46.8W","Operating voltage rated value":"690V","Ambient temperature rated value":"40°C","Operating frequency rated value":"300Hz","Power loss [W] of the iron core":"1.1W","Thermal class acc. to IEC 60085":"B","Operating current at AC rated value":"12.6A","Product function windings in parallel selectable":"No","Type of electrical connection for main current circuit":"screw-type terminals / tab terminals"}},"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=240258&mlfb=4EM5308-2CB00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EM5308-2CB00/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does SIDAC provide for 4EM5308-2CB00?","answer":"The evidence does not list RoHS, REACH, UL, or IEC certifications for this part. The design reference is EN 61558-2-20, which covers chokes. For specific compliance documentation, request it with the RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EM5308-2CB00","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/4EM5308-2CB00 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}}