{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LUCB1XFUTQ","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LUCB1XFUTQ","canonicalUrl":"https://aoctrl.com/schneider/LUCB1XFUTQ","factsUrl":"https://aoctrl.com/api/mcp/products/LUCB1XFUTQ","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys U advanced control unit, LUCB1XFUTQ, 0.25 kW at 400...440 V AC, 110...240 V AC / 110...220 V DC control voltage, plug-in front face, manual reset.","salesMarkdown":"It sits in the TeSys U family as the brains of the motor starter — handling overload, short-circuit, earth fault, and phase failure protection in one plug-in module that snaps into the power base. Rated for a 0.25 kW three-phase motor at 400...440 V AC 50/60 Hz, this unit covers small pump, fan, and conveyor drives in control panels. The control circuit accepts 110...240 V AC or 110...220 V DC, drawing 280 mA during closing and 25...35 mA sealed depending on the control voltage interface (LUB12, LUB32, or LUB38). Protection is Class 10 thermal overload with temperature compensation from -25 to 70 °C, and the magnetic trip threshold is set at 14.2 x Ir ±20 % for short-circuit clearance. The manual reset keeps the operator in control after a fault — no automatic restart on a stalled motor. The LUCB1XFUTQ carries EN/IEC 60947-6-2 and UL 60947-4-1 / CSA C22.2 No 60947-4-1 approvals (with phase barrier), covering motor starter and controller applications across North American and European jurisdictions. The control unit plugs into the TeSys U power base from the front face — no tools needed for replacement. Dimensions are 45 mm wide, 66 mm high, and 60 mm deep, fitting standard 45 mm per-function slot spacing on DIN rail. IP20 on the front panel and wired terminals; IP40 on the front panel outside the connection zone. Operating altitude is rated to 2000 m without derating. The unit withstands 10 gn shock with power poles open and 15 gn closed, plus vibration of 2 gn (poles open) and 4 gn (poles closed) across 5...300 Hz. ## Electrical environment Utilisation categories AC-41, AC-43, and AC-44 cover resistive, mixed, and highly inductive motor loads. The unit provides safe separation (SELV) at 400 V between control/auxiliary circuits and the main circuit per IEC 60947-1. Immunity to microbreaks is 3 ms; voltage dips down to 70 % for 500 ms are tolerated per IEC 61000-4-11. Heat dissipation is 2 W with LUB12 control interface, 3 W with LUB32 or LUB38. Fire resistance meets 960 °C on live-part supports and 650 °C general per IEC 60695-2-12.","metaTitle":"Schneider Electric LUCB1XFUTQ TeSys U Advanced Control Unit,","metaDescription":"Schneider Electric LUCB1XFUTQ TeSys U advanced control unit for 3-phase motor protection. 0.25 kW at 400 V, manual reset, plug-in. UL/CSA/IEC. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Motor Starters"],"specifications":{"Depth":"60 mm","Range":"TeSys","Reset":"Manual reset","Width":"45 mm","Height":"66 mm","Load type":"3-phase motor - cooling: self-cooled","Standards":"EN 60947-6-2 IEC 60947-6-2 UL 60947-4-1, with phase barrier CSA C22.2 No 60947-4-1, with phase barrier","Fixing mode":"Plug-in (front face)","Product name":"TeSys U","Motor power kW":"0.25 kW at 400...440 V AC 50/60 Hz","Operating time":"35 ms opening with LUB12 for control circuit 35 ms opening with LUB32 for control circuit 35 ms opening with LUB38 for control circuit 50 ms closing with LUB12 for control circuit 50 ms closing with LUB32 for control circuit 50 ms closing with LUB38 for control circuit","Fire resistance":"960 °C parts supporting live components conforming to IEC 60695-2-12 650 °C conforming to IEC 60695-2-12","lifecycle_stage":"current","Heat dissipation":"2 W for control circuit with LUB12 3 W for control circuit with LUB32 3 W for control circuit with LUB38","Range of product":"TeSys U","Shock resistance":"10 gn power poles open conforming to IEC 60068-2-27 15 gn power poles closed conforming to IEC 60068-2-27","Device short name":"LUCB","Network frequency":"40...60 Hz","Compatibility code":"LUCB","Device application":"Motor control Motor protection","Operating altitude":"2000 m","Tripping threshold":"14.2 x Ir +/- 20 %","Protective treatment":"TH conforming to IEC 60068","Utilisation category":"AC-44 AC-43 AC-41","Vibration resistance":"2 gn, 5...300 Hz, power poles open conforming to IEC 60068-2-6 4 gn, 5...300 Hz, power poles closed conforming to IEC 60068-2-6","Thermal overload class":"Class 10 - frequency limit: 40...60 Hz - temperature compensation: -25...70 °C conforming to IEC 60947-6-2 Class 10 - frequency limit: 40...60 Hz - temperature compensation: -25...70 °C conforming to UL 508","IP degree of protection":"IP20 front panel and wired terminals conforming to IEC 60947-1 IP20 other faces conforming to IEC 60947-1 IP40 front panel outside connection zone conforming to IEC 60947-1","Immunity to microbreaks":"3 ms","Main Function Available":"Protection against overload and short-circuit Earth fault protection Protection against phase failure and phase imbalance Manual reset","Immunity to voltage dips":"70 % / 500 ms conforming to IEC 61000-4-11","Phase failure sensitivity":"Yes","Product or component type":"Advanced control unit","Non-dissipating shock wave":"1 kV serial mode conforming to IEC 60947-6-2 2 kV common mode conforming to IEC 60947-6-2","Safe separation of circuit":"400 V SELV between the control and auxiliary circuits conforming to IEC 60947-1 400 V SELV between the control or auxiliary circuit and the main circuit conforming to IEC 60947-1","Typical current consumption":"280 mA at 110...240 V AC I maximum while closing with LUB12 280 mA at 110...240 V AC I maximum while closing with LUB32 280 mA at 110...240 V AC I maximum while closing with LUB38 280 mA at 110...220 V DC I maximum while closing with LUB12 280 mA at 110...220 V DC I maximum while closing with LUB32 280 mA at 110...220 V DC I maximum while closing with LUB38 35 mA at 110...240 V AC I rms sealed with LUB12 25 mA at 110...240 V AC I rms sealed with LUB32 25 mA at 110...240 V AC I rms sealed with LUB38 35 mA at 110...220 V DC I rms sealed with LUB12 25 mA at 110...220 V DC I rms sealed with LUB32 25 mA at 110...220 V DC I rms sealed with LUB38","Product specific application":"Basic protection and advanced functions, communication","[Uc] control circuit voltage":"110...220 V DC 110...240 V AC","Resistance to fast transients":"2 kV class 3 serial link conforming to IEC 61000-4-4 4 kV class 4 all circuits except for serial link conforming to IEC 61000-4-4","Resistance to radiated fields":"10 V/m 3 conforming to IEC 61000-4-3","[Ui] rated insulation voltage":"690 V conforming to IEC 60947-6-2 600 V conforming to UL 60947-4-1 600 V conforming to CSA C22.2 No 60947-4-1","Control circuit voltage limits":"88...264 V for AC circuit 110...240 V in operation 88...242 V for DC circuit 110...220 V in operation 55 V for AC circuit 110...240 V drop-out 55 V for DC circuit 110...220 V drop-out","[Ue] rated operational voltage":"690 V AC","Immunity to radioelectric fields":"10 V conforming to IEC 61000-4-6","Ambient air temperature for storage":"-40...85 °C","Rated Motor Current Adjustment Range":"0.35...1.4 A","Ambient air temperature for operation":"-25...70 °C","Resistance to electrostatic discharge":"8 kV level 3 in open air conforming to IEC 61000-4-2 8 kV level 4 on contact conforming to IEC 61000-4-2","[Uimp] rated impulse withstand voltage":"6 kV conforming to IEC 60947-6-2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3ababd8c02e83fd692641a161fddc822.pdf","sourceUrl":"https://www.se.com/sg/en/product/LUCB1XFUTQ/advanced-control-unit-tesys-u-0-351-4a-3p-motors-protection-diagnostic-class-10-coil-110240v-ac-dc-tq10/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LUCB1XFUTQ/alternatives.json"},"ai":{"faq":[{"question":"What motor power does LUCB1XFUTQ protect?","answer":"The LUCB1XFUTQ is rated for 0.25 kW at 400...440 V AC 50/60 Hz, suitable for small three-phase motors."},{"question":"What protection functions does the LUCB1XFUTQ provide?","answer":"It provides protection against overload and short-circuit, earth fault, phase failure and phase imbalance, with manual reset."},{"question":"What standards does the LUCB1XFUTQ comply with?","answer":"It complies with EN 60947-6-2, IEC 60947-6-2, UL 60947-4-1, and CSA C22.2 No 60947-4-1 (with phase barrier)."},{"question":"How do I get pricing and availability for LUCB1XFUTQ?","answer":"The LUCB1XFUTQ is sourced and quoted to order against an RFQ through independent distribution. Current pricing and availability are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LUCB1XFUTQ","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/LUCB1XFUTQ 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}}