{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"C6334A570","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"C6334A570","canonicalUrl":"https://aoctrl.com/schneider/C6334A570","factsUrl":"https://aoctrl.com/api/mcp/products/C6334A570","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric ComPacT NSX series, MicroLogic 4.3 AL electronic trip unit, 570 A at 40 °C, 3P, EN/IEC 60947-2, integrated earth-leakage Class A, LSoI protection.","salesMarkdown":"The C6334A570 is a MicroLogic 4.3 AL electronic trip unit for the Schneider Electric ComPacT NSX400...630 molded-case circuit breaker range. It is the replaceable protection logic module that plugs into the breaker — you swap the trip unit, not the whole breaker, to change the protection profile or rating. Rated 570 A at 40 °C, it is sized for distribution feeders in the upper end of the NSX frame. The trip unit provides LSoI protection: long-time overload (L), short-time short-circuit with fixed delay (So), and instantaneous short-circuit (I). The long-time pickup (Ir) is adjustable from 250 to 570 A across nine settings, so the same unit covers a range of cable or transformer ratings without a hardware swap. Short-time pickup (Isd) adjusts from 1.5 to 10 times Ir; instantaneous pickup (Ii) is fixed at 6900 A. ## Integrated earth-leakage — what Class A means on the line This is the AL variant, meaning it carries integrated earth-leakage protection rated Class A per IEC 60755. Class A detects sinusoidal AC residual currents plus pulsating DC — the common waveform from rectified loads, VFDs, and switched-mode supplies that a plain AC-sensitive relay misses. Sensitivity (IΔn) is adjustable via the rotary switch, and the time delay (Δt) can be set to 0 ms, 60 ms, 150 ms, 500 ms, or 1 s. Earth leakage can be disabled entirely by switching IΔn to OFF. The trip unit is electronic, not thermal-magnetic. This matters for motor or transformer feeders where re-acceleration inrush follows a trip. ## Standards, approvals, and deployment context It carries Pollution Degree 3 per IEC 60947-1 — suitable for industrial enclosures where conductive pollution (dust, condensation) is expected. ## Sourcing and procurement note For a BOM line carrying C6334A570, the key fit confirmation is the 570 A rating at 40 °C and the 3P 3D pole configuration. The trip unit is fixed-mount and mates with any ComPacT NSX400...630 frame breaker.","metaTitle":"Schneider Electric C6334A570 ComPacT NSX MicroLogic 4.3 AL T","metaDescription":"Schneider Electric C6334A570 MicroLogic 4.3 AL electronic trip unit for ComPacT NSX400...630, 570 A, EN/IEC 60947-2, integrated earth-leakage Class A. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Range":"ComPacT","title":"C6334A570","Standards":"EN/IEC 60947-2","description":"Trip unit MicroLogic Vigi 4.3AL, ComPacT NSX630, 3 poles, electronic basic protections, earth leakage alarm, 570A","Network type":"AC","Thermal memory":"20 minutes before and after tripping","Trip unit name":"MicroLogic 4.3 AL","Protection type":"L : for overload protection (long time) So : for short time short-circuit protection with fixed delay I : for instantaneous short-circuit protection","lifecycle_stage":"current","Local signalling":"Flashing LED (green) for ready to operate LED 105 % Ir (red) for overload LED 90 % Ir (orange) for overload Color indicator (yellow) for residual current","Pollution degree":"3 conforming to IEC 60947-1","Range of product":"ComPacT NSX400...630","Trip unit rating":"570 A at 40 °C","Network frequency":"50/60 Hz","Poles description":"3P","Device application":"Distribution","Trip unit technology":"Electronic","IP degree of protection":"IP40 conforming to IEC 60529","Earth-leakage protection":"Integrated","Product or component type":"Trip unit","Protected poles description":"3D","Circuit breaker mounting mode":"Fixed","Earth-leakage protection class":"Class A","Trip unit protection functions":"LSoI","[Ue] rated operational voltage":"440 V AC 50/60 Hz","Zone selective interlocking ZSI":"Without","Electrical shock protection class":"Class II","Ambient air temperature for storage":"-50...85 °C","Ambient air temperature for operation":"-25...70 °C","Earth-leakage protection specific mode":"OFF using the IΔn rotary switch","Long-time protection delay adjustment type tr":"Fixed","Short-time protection delay adjustment type tsd":"Fixed","[Tr] Long-Time Protection Delay Adjustment Range":"11 s at 7.2 x Ir 16 s at 6 x Ir 400 s at 1.5 x Ir","Short-time protection pick-up adjustment type Isd":"Adjustable","[Ir] long-time protection pick-up adjustment range":"250...570 A","Instantaneous protection pick-up adjustment type Ii":"Fixed","[Isd] Short-time protection pick-up adjustment range":"1.5...10 x Ir","[Ii] instantaneous protection pick-up adjustment range":"6900 A","Earth-leakage protection sensitity adjustment type IΔn":"Adjustable","Earth-leakage protection time delay adjustement type Δt":"Adjustable","Long-time pick-up adjustment type Ir (thermal protection)":"Adjustable 9 settings","[Δt] Earth-leakage protection time delay adjustment range":"0 ms 60 ms 150 ms 500 ms 1 s","[IΔn] earth-leakage protection sensitivity adjustment range":"0.3 A 0.5 A 1 A 3 A 5 A 10 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$16.17","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/8c3f5540a63fd270d6666b9d79d799f1.pdf","sourceUrl":"https://www.se.com/vn/en/product/C6334A570/trip-unit-micrologic-vigi-4-3al-compact-nsx630-3-poles-electronic-basic-protections-earth-leakage-alarm-570a/"},"ai":{"faq":[{"question":"Where can I buy C6334A570 and how do I get a price?","answer":"The part is sourced and quoted to order against an RFQ through independent distribution channels. Submit an RFQ for current pricing and availability confirmation."},{"question":"What is C6334A570's listed range and standards?","answer":"It belongs to the Schneider Electric ComPacT NSX400...630 range and is certified to EN/IEC 60947-2."},{"question":"What protection functions does the MicroLogic 4.3 AL trip unit provide?","answer":"It provides LSoI protection: long-time overload (L), short-time short-circuit with fixed delay (So), and instantaneous short-circuit (I), plus integrated earth-leakage protection Class A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/C6334A570","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/C6334A570 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}}