{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EP4300-0US00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EP4300-0US00","canonicalUrl":"https://aoctrl.com/siemens/4EP4300-0US00","factsUrl":"https://aoctrl.com/api/mcp/products/4EP4300-0US00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIDAC output reactor, 3-phase, 34 A AC max, 30.6 A rated, 0.25 mH, 3 kHz switching frequency, IP00, screw terminals, UL/CSA recognized.","salesMarkdown":"## Output reactor for variable-frequency drives The Siemens SIDAC 4EP4300-0US00 is a 3-phase output reactor rated for a maximum AC current of 34 A at 120 Hz and a rated operational current of 30.6 A. Its 0.00025 H inductance and 3 kHz switching frequency are sized to protect motor windings and cable insulation from reflected-wave voltage spikes on long drive-to-motor runs. Mounts via screw terminals (IP00 enclosure), so it lands inside a panel or cabinet — not on the machine itself. The thermal class B insulation (130 °C rise) and 76 W coil loss plus 54.7 W iron-core loss mean the reactor sheds about 131 W total at full load; plan for that heat in the enclosure's ventilation budget. ## Integration considerations At 0.26 m wide, 0.22 m tall, and 0.12 m deep, the reactor occupies a compact footprint for its 34 A rating. Screw-type main-circuit terminals accept standard power wiring; no special lug kit required. Rated for a 40 °C ambient with thermal class B insulation. If the enclosure ambient exceeds 40 °C, derate the continuous current per the manufacturer's thermal curve — the 30.6 A rated operational current is the baseline at that temperature.","metaTitle":"Siemens SIDAC 4EP4300-0US00 Output Reactor, 34 A, 3 kHz","metaDescription":"Siemens SIDAC 4EP4300-0US00 3-phase output reactor, 34 A AC max, 30.6 A rated, 0.25 mH, 3 kHz switching frequency, IP00, screw terminals, UL/CSA recognized. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.12m","Width":"0.26m","Height":"0.22m","Maximum":"120Hz","Minimum":"0Hz","Rated Value":"3 000Hz","Phase Number":"3","Type Of Voltage":"AC","lifecycle_stage":"mature","Product Brand Name":"SIDAC","Product Designation":"output reactor","protection class IP":"IP00","current at AC maximum":"34A","Inductivity Rated Value":"0.00025H","power loss [W] of the coil":"76W","Ambient Temperature Rated Value":"40°C","power loss [W] of the iron core":"54.7W","thermal class according to IEC 60085":"B","operational current at AC rated value":"30.6A","Type Of Electrical Connection For Main Current Circuit":"screw-type 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=189367&mlfb=4EP4300-0US00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EP4300-0US00/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EP4300-0US00","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/4EP4300-0US00 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}}