{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"C1044A100","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"C1044A100","canonicalUrl":"https://aoctrl.com/schneider/C1044A100","factsUrl":"https://aoctrl.com/api/mcp/products/C1044A100","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric ComPacT NSX series, MicroLogic 4.2 AL electronic trip unit, 100 A at 40 °C, 4 poles, EN/IEC 60947-2.","salesMarkdown":"## Trip unit for ComPacT NSX — MicroLogic 4.2 AL The C1044A100 is a MicroLogic 4.2 AL electronic trip unit from the Schneider Electric ComPacT NSX100...250 range. The protection package is LSoI — long-time, short-time with fixed delay, and instantaneous — with a fixed instantaneous pickup of 1500 A. ## What the protection settings mean for your panel Long-time pickup (Ir) is adjustable from 40 to 100 A in the field, with a fixed time delay. The delay curve gives you 400 s at 1.5 x Ir, 16 s at 6 x Ir, and 11 s at 7.2 x Ir — that's a slow blow for feeder protection, not a motor-start curve. Short-time pickup (Isd) is adjustable 1.5 to 10 x Ir, with a fixed delay. Instantaneous (Ii) is fixed at 1500 A. That means for a 100 A setting, anything above 1500 A trips instantly — no adjustment. Earth-leakage sensitivity (IΔn) and time delay (Δt) are both adjustable via the rotary switch on the front. The neutral protection settings let you choose 0.5 x Ir (3D + N/2), 1 x Ir (4D), or no protection (3D) — match it to your system grounding. IP40 front-of-panel protection handles the usual dry indoor panel.","metaTitle":"Schneider Electric C1044A100 MicroLogic 4.2 AL Trip Unit, 10","metaDescription":"Schneider Electric C1044A100 MicroLogic 4.2 AL electronic trip unit for ComPacT NSX100-250. Rated 100 A at 40 °C, 4P, EN/IEC 60947-2. Integrated earth-leakage protection. Active pr","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Range":"ComPacT","title":"C1044A100","Standards":"EN/IEC 60947-2","description":"Trip unit MicroLogic Vigi 4.2AL, ComPacT NSX100-250, 4 poles, electronic basic protections, earth leakage alarm, 100A","Network type":"AC","Thermal memory":"20 minutes before and after tripping","Trip unit name":"MicroLogic 4.2 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","Neutral position":"Left","Pollution degree":"3 conforming to IEC 60947-1","Range of product":"ComPacT NSX100...250","Trip unit rating":"100 A at 40 °C","Network frequency":"50/60 Hz","Poles description":"4P","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","Neutral protection settings":"0.5 x Ir (3D + N/2) 1 x Ir (4D) No protection (3D)","Protected poles description":"3D + N/2 4D 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":"-40...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":"40...100 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":"1500 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":"0.03 A 0.1 A 0.3 A 0.5 A 1 A 3 A 5 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.01","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3c25df0f3211a495abbcc1bf3ccbecdd.pdf","sourceUrl":"https://www.se.com/vn/en/product/C1044A100/trip-unit-micrologic-vigi-4-2al-compact-nsx100250-4-poles-electronic-basic-protections-earth-leakage-alarm-100a/"},"ai":{"faq":[{"question":"What is C1044A100's listed range on this component line?","answer":"It belongs to the Schneider Electric ComPacT NSX100...250 range, specifically the ComPacT family."},{"question":"What standards does the C1044A100 comply with?","answer":"It complies with EN/IEC 60947-2 for low-voltage switchgear and controlgear."},{"question":"Where can I buy the C1044A100 and how is it quoted?","answer":"The C1044A100 is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at the time of quote."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/C1044A100","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/C1044A100 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}}