{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"C16B44B160","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"C16B44B160","canonicalUrl":"https://aoctrl.com/schneider/C16B44B160","factsUrl":"https://aoctrl.com/api/mcp/products/C16B44B160","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric ComPacT NSX160B, 160A, 4P, 40kA Icu at 240V AC, MicroLogic 4.2 AB trip unit with integrated earth-leakage protection.","salesMarkdown":"The Schneider C16B44B160 is a ComPacT NSX160B molded-case circuit breaker, 4-pole, rated 160 A at 40 °C. It carries a MicroLogic 4.2 AB electronic trip unit that combines overload (L), short-time short-circuit (So), instantaneous short-circuit (I), and integrated earth-leakage (R) protection in one package. The breaking capacity is 40 kA Icu at 220/240 V AC and 25 kA Icu at 380/415 V AC, per EN/IEC 60947-2. Above that, the electronic trip curve derates automatically. The MicroLogic 4.2 AB is a fixed-setting unit — no field-adjustable long-time or short-time pickups — so the protection profile is set at the factory for the 160 A frame. The integrated earth-leakage (R) protection means you don't need a separate RCD module; the breaker itself detects ground faults and trips via the rotary IΔn switch. The 20-minute thermal memory before and after tripping means the breaker remembers a prior overload and shortens the cool-down period, which prevents nuisance re-closing on a still-hot conductor. Front connection both upside and downside. The 140 mm width and 161 mm height fit standard ComPacT NSX panel cutouts. The IP40 front face keeps out tools and fingers; IK07 impact protection handles incidental knocks during panel assembly.","metaTitle":"Schneider C16B44B160 ComPacT NSX160B, 160A, 40kA at 240V","metaDescription":"Schneider C16B44B160 ComPacT NSX160B MCCB. 160A rating, 40kA Icu at 240V AC. MicroLogic 4.2 AB trip unit with integrated earth-leakage. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Range":"ComPacT","Depth (D)":"86 mm","Standards":"EN/IEC 60947-2","Width (W)":"140 mm","Height (H)":"161 mm","Control type":"Toggle","Network type":"AC","Product name":"ComPacT NSX","Operating mode":"OFF using the IΔn rotary switch","Thermal memory":"20 minutes before and after tripping","Trip unit name":"MicroLogic 4.2 AB","Number of slots":"5 slot(s)","Protection type":"L : for overload protection (long time) So : for short time short-circuit protection with fixed delay I : for instantaneous short-circuit protection R : for earth-leakage protection","lifecycle_stage":"current","Connection pitch":"35 mm","Local signalling":"Flashing LED (green) for ready to operate LED 105 % Ir (red) for overload LED 90 % Ir (orange) for overload","Mounting support":"Backplate","Neutral position":"Left","Pollution degree":"3 conforming to IEC 60664-1","Trip unit rating":"160 A at 40 °C","Breaking capacity":"40 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 25 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 20 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 15 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2","Device short name":"NSX160B","Mounting position":"Horizontal and vertical Flat on the back","Network frequency":"50/60 Hz","Poles description":"4P","Relative humidity":"0...95 %","Upside connection":"Front","Device application":"Special application","Operating altitude":"0...2000 m without derating 2000 m...5000 m with derating","[In] rated current":"160 A at 40 °C","Downside connection":"Front","Overvoltage category":"IV","Trip unit technology":"Electronic","Utilisation category":"Category A","Electrical durability":"40000 cycles at 440 V In/2 20000 cycles at 440 V In 15000 cycles at 690 V In/2 7500 cycles at 690 V In","Mechanical durability":"40000 cycles","Breaking capacity code":"B 25 kA 415 V AC","IK degree of protection":"IK07 conforming to IEC 62262","IP degree of protection":"IP40 conforming to IEC 60529","Earth-leakage protection":"Integrated","Product or component type":"Earth leakage circuit breaker","Suitability for isolation":"Yes conforming to EN/IEC 60947-2","Neutral protection setting":"0.5 x Ir (3D + N/2) 1 x Ir (4D) No protection (3D)","Power dissipation per pole":"12.3 W N 12.3 W L1 and L3 10 W L2","Protected poles description":"4D 3D + N/2 3D","Circuit breaker mounting mode":"Fixed","[Ui] rated insulation voltage":"500 V AC 50/60 Hz","Earth-leakage protection class":"Class A","Trip unit protection functions":"LSoIR","[Ue] rated operational voltage":"440 V AC 50/60 Hz","Zone selective interlocking ZSI":"Without","Electrical shock protection class":"Class II on front face","Ambient air temperature for storage":"-50...85 °C","Ambient air temperature for operation":"-25...70 °C","[Ics] rated service breaking capacity":"40 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 25 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 20 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2 15 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2","[Tr] Long-Time Delay Adjustment Range":"15 s at 1.5 x Ir 0.5 s at 6 x Ir 0.35 s at 7.2 x Ir","[Uimp] rated impulse withstand voltage":"8 kV","Long-time protection delay adjustment type tr":"Fixed","Short-time protection delay adjustment type tsd":"Fixed","Short-time protection pick-up adjustment type Isd":"Adjustable","[Ir] long-time protection pick-up adjustment range":"90...160 A","[Δt] residual earth-leakage time delay adjustment":"0 ms 60 ms 150 ms 500 ms 1 s","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":"1600 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","[IΔn] earth-leakage protection sensitivity adjustment range":"30 mA 100 mA 300 mA 500 mA 1 A 3 A 5 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0459efbb293dcb42e2473cbc259b4a6b.pdf","sourceUrl":"https://www.se.com/eg/en/product/C16B44B160/circuit-breaker-compact-nsx160b-25ka-415vac-4-poles-micrologic-vigi-4-2ab-trip-unit-160a/","alternativesUrl":"https://aoctrl.com/api/mcp/products/C16B44B160/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy C16B44B160?","answer":"It is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is C16B44B160's breaking capacity at 415 V?","answer":"25 kA Icu at 380/415 V AC 50/60 Hz per IEC 60947-2. This is the code B rating that governs most European industrial panel designs."},{"question":"What protection functions does the MicroLogic 4.2 AB trip unit provide?","answer":"It provides overload (L), short-time short-circuit with fixed delay (So), instantaneous short-circuit (I), and integrated earth-leakage (R) protection."},{"question":"Does C16B44B160 include earth-leakage protection?","answer":"Yes, earth-leakage protection is integrated into the MicroLogic 4.2 AB trip unit. No separate RCD module is required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/C16B44B160","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/C16B44B160 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}}