{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"EZC400N4400N","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"EZC400N4400N","canonicalUrl":"https://aoctrl.com/schneider/EZC400N4400N","factsUrl":"https://aoctrl.com/api/mcp/products/EZC400N4400N","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric EasyPact EZC400N, circuit breaker, 400 A thermal-magnetic TM-D trip, 4-pole, 36 kA Icu at 440 V AC, IEC 60947-2.","salesMarkdown":"The headline breaking capacity is 36 kA Icu at 440 V AC 50/60 Hz per IEC 60947-2, with a higher 40 kA Icu available at 220/230 V AC. The TM-D trip gives you fixed thermal (overload) and magnetic (short-circuit) protection curves; magnetic pickup is set at 4000 A, so it clears hard faults fast while riding through motor inrush. ## Standards and approvals — what they certify This breaker carries compliance with EN/IEC 60947-2 (the main standard for low-voltage switchgear and controlgear), plus GB/T 14048.2 (Chinese national standard) and JIS C8201-2-2 (Japanese industrial standard). That triple certification covers most global project specs without a separate variant. It is also certified for isolation per IEC 60947-2 — meaning you can safely use it as a visible-break disconnect for lockout-tagout, provided the positive contact indication on the toggle matches the actual contact state. Pollution degree 3 (conforming to IEC 60947) means it's rated for the conductive dust and humidity typical in industrial enclosures, not just clean control rooms. Fixed-mount via backplate with front-front connections — both line and load terminate on the front face, which simplifies busbar routing in a distribution panel but means you need clearance for cable bending radius on both sides. The 45 mm pole pitch matches standard Schneider EasyPact busbar systems. IP20 finger-safe protection on the front; IK07 impact rating means it survives a 2 J hammer blow (typical for panel-door mounting).","metaTitle":"Schneider Electric EZC400N4400N EasyPact EZC400N, 400 A, 36","metaDescription":"Schneider Electric EZC400N4400N EasyPact EZC400N circuit breaker, 400 A thermal-magnetic trip, 36 kA Icu at 440 V AC, 4-pole. Active production, sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Breaker Accessories"],"specifications":{"Depth":"140 mm","Width":"140 mm","title":"EZC400N4400N","Colour":"Black","Height":"255 mm","Standards":"GB/T 14048.2 EN/IEC 60947-2 JIS C8201-2-2 EN/IEC 60947-1","description":"circuit breaker Easypact EZC400N - TMD - 400 A - 4 poles 3d","Control type":"Toggle","Network type":"AC","Mounting mode":"Fixed","Trip unit name":"TM-D","Protection type":"Overload protection Short-circuit protection","lifecycle_stage":"current","Connection pitch":"45 mm","Local signalling":"Positive contact indication","Mounting support":"Backplate","Pollution degree":"3 conforming to IEC 60947","Quantity per set":"1 piece","Range of product":"EasyPact","Trip unit rating":"400 A at 50 °C","Breaking capacity":"36 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 40 kA Icu at 220/230 V AC 50/60 Hz conforming to IEC 60947-2 36 kA Icu at 380 V AC 50/60 Hz conforming to IEC 60947-2 36 kA Icu at 400/415 V AC 50/60 Hz conforming to IEC 60947-2","Device short name":"Easypact EZC400N","Network frequency":"50/60 Hz","Poles description":"4P","Upside connection":"Front","Device application":"Distribution","[In] rated current":"400 A at 40 °C","Downside connection":"Front","Circuit breaker name":"Easypact EZC400N","Trip unit technology":"Thermal-magnetic","Utilisation category":"Category A","Electrical durability":"Category A: 4000 cycles 415 V AC 50/60 Hz conforming to IEC 60947-2","Mechanical durability":"10000 cycles","Breaking capacity code":"N","IK degree of protection":"IK07 conforming to EN 50102","IP degree of protection":"IP20 conforming to IEC 60529","Earth-leakage protection":"Without","Magnetic tripping current":"4000 A","Product or component type":"Circuit breaker","Suitability for isolation":"Yes conforming to IEC 60947-2","Contact position indicator":"Yes","Neutral protection setting":"Without protection","Protected poles description":"3t","[Ui] rated insulation voltage":"690 V AC 50/60 Hz conforming to IEC 60947-2","[Ue] rated operational voltage":"440 V AC 50/60 Hz conforming to IEC 60947-2","Long time delay adjustment type":"Fixed","Ambient air temperature for storage":"-35...85 °C","Long time pick-up adjustment type Ir":"Fixed","Ambient air temperature for operation":"-25...70 °C","[Ics] rated service breaking capacity":"18 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2 20 kA at 220/230 V AC 50/60 Hz conforming to IEC 60947-2 18 kA at 380 V AC 50/60 Hz conforming to IEC 60947-2 18 kA at 400/415 V AC 50/60 Hz conforming to IEC 60947-2","[Uimp] rated impulse withstand voltage":"6 kV conforming to IEC 60947-2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/30753940155b1417b4a0db2fd2e72356.pdf","sourceUrl":"https://www.se.com/ng/en/product/EZC400N4400N/circuit-breaker-easypact-ezc400n-tmd-400-a-4-poles-3d/"},"ai":{"faq":[{"question":"What is the breaking capacity of EZC400N4400N at 440 V?","answer":"The breaking capacity is 36 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2. At 220/230 V AC it rises to 40 kA Icu."},{"question":"What standards does the EZC400N4400N comply with?","answer":"It complies with EN/IEC 60947-2, GB/T 14048.2, and JIS C8201-2-2, covering international, Chinese, and Japanese installation standards."},{"question":"Where can I buy EZC400N4400N and how is it quoted?","answer":"EZC400N4400N is sourced to order through independent distribution channels. Submit an RFQ for current pricing and availability — confirmed at quote time, not a published figure."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/EZC400N4400N","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/schneider/EZC400N4400N when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}