{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"C1644A160","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"C1644A160","canonicalUrl":"https://aoctrl.com/schneider/C1644A160","factsUrl":"https://aoctrl.com/api/mcp/products/C1644A160","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric ComPacT NSX, MicroLogic 4.2 AL trip unit, 160 A at 40 °C, 4P, electronic LSoI protection with integrated earth-leakage, EN/IEC 60947-2.","salesMarkdown":"The Schneider Electric C1644A160 is a MicroLogic 4.2 AL electronic trip unit for the ComPacT NSX100...250 molded-case circuit breaker platform. This is the trip unit only — it mounts into the matching NSX breaker frame. ## Protection and adjustment 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 63 to 160 A. Short-time pickup Isd adjusts from 1.5 to 10 x Ir. Instantaneous pickup Ii is fixed at 2400 A. Long-time delay tr is fixed at 11 s at 7.2 x Ir, 16 s at 6 x Ir, and 400 s at 1.5 x Ir. Short-time delay tsd is also fixed. Integrated earth-leakage protection is Class A, with adjustable sensitivity IΔn and adjustable time delay Δt. The earth-leakage can be disabled via the IΔn rotary switch. Neutral protection is configurable: 0.5 x Ir (3D + N/2), 1 x Ir (4D), or no protection (3D). ## Environmental and installation IP40 protection conforming to IEC 60529. The trip unit is fixed-mount, neutral on the left. Local signalling includes a flashing green LED for ready, red LED at 105 % Ir for overload, orange LED at 90 % Ir for overload, and a yellow indicator for residual current.","metaTitle":"Schneider Electric C1644A160 ComPacT NSX Trip Unit, MicroLog","metaDescription":"Schneider Electric C1644A160 trip unit for ComPacT NSX100...250. MicroLogic 4.2 AL, 160 A at 40 °C, 4P, electronic LSoI protection, integrated earth-leakage. EN/IEC 60947-2. Source","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Range":"ComPacT","title":"C1644A160","Standards":"EN/IEC 60947-2","description":"Trip unit MicroLogic Vigi 4.2AL, ComPacT NSX160/250, 4 poles, electronic basic protections, earth leakage alarm, 160A","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":"160 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":"63...160 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":"2400 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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3fec058f5e5eae312eb1e18878f5a17d.pdf","sourceUrl":"https://www.se.com/vn/en/product/C1644A160/trip-unit-micrologic-vigi-4-2al-compact-nsx160-250-4-poles-electronic-basic-protections-earth-leakage-alarm-160a/"},"ai":{"faq":[{"question":"Who supplies C1644A160 and how is it quoted for volume purchases?","answer":"C1644A160 is supplied through independent distribution. It is quoted to order against an RFQ; availability and current pricing are confirmed at the time of quote."},{"question":"What is C1644A160's listed range (ComPacT) on this component line?","answer":"The C1644A160 belongs to the ComPacT NSX100...250 range of molded-case circuit breakers."},{"question":"What is C1644A160's listed standards (EN/IEC 60947-2) on this component line?","answer":"The C1644A160 complies with EN/IEC 60947-2, the standard for low-voltage switchgear and controlgear."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/C1644A160","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/C1644A160 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}}