{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LUCLX6B","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LUCLX6B","canonicalUrl":"https://aoctrl.com/schneider/LUCLX6B","factsUrl":"https://aoctrl.com/api/mcp/products/LUCLX6B","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys Ultra magnetic control unit, LUCLX6B, 0.09 kW at 400...440 V AC, AC-44 utilisation category, 24 V AC control circuit, plug-in front face.","salesMarkdown":"The Schneider TeSys Ultra LUCLX6B is a magnetic control unit — the brain of a motor starter that handles the coil logic and protection curve for a 3-phase motor. It's rated for 0.09 kW at 400...440 V AC 50/60 Hz, which puts it at the low end of the power range, sized for small pumps, fans, or conveyor drives. The 24 V AC control circuit keeps it compatible with standard control transformers in most panels. What sets this part apart is its AC-44 utilisation category — that's the heavy-duty switching class for motors with frequent starting and plugging (reverse braking). Most general-purpose contactors are AC-3; AC-44 means the LUCLX6B is built for the higher electrical stress of reversing or inching duty, where the contacts see repeated inrush without the benefit of a clean break. If your application involves jogging, reversing conveyors, or crane travel drives, this is the category that matters. It's also specifically listed for protection of variable speed drives and soft-start/soft-stop units, not just direct-on-line motors. That means the trip curve and isolation coordination are tuned for the harmonic-rich, non-sinusoidal waveforms a VFD produces — a detail that generic motor starters often miss. The tripping threshold is 14.2 x Ir ± 20%. Opening time is 35 ms with the matching LUB control module. The plug-in front face mounting means the LUCLX6B clips onto a DIN-rail-mounted base — typically the TeSys Ultra LUB series control modules. This is a modular architecture: the control unit swaps without disturbing the power wiring, which cuts replacement time on a live panel to seconds. The 45 mm width and 66 mm height keep it to a single 45 mm modular pitch on the rail. That covers North American and European installations without a separate approval hunt. The TH protective treatment per IEC 60068 means it's built for tropical/humid environments — not just dry indoor panels. ## Integration notes The control circuit pulls 140 mA peak on closing with LUB12, 220 mA with LUB32 or LUB38, and settles to 70-90 mA RMS sealed. Heat dissipation is 2 W with LUB12, 3 W with the larger modules — negligible for panel thermal budgeting, but worth noting if you're packing a dozen of these in a sealed enclosure. The 24 V AC coil has a dropout threshold of 14.5 V, so a saggy control transformer won't cause nuisance dropouts unless it dips below that. Vibration resistance is 4 gn (power poles closed) and 2 gn (open) across 5-300 Hz — adequate for most industrial machinery, but if the panel is mounted on a vibrating screen or crusher, the open-contact rating is the limiting factor. Shock resistance is 15 gn closed, 10 gn open.","metaTitle":"Schneider TeSys Ultra LUCLX6B Magnetic Control Unit, AC-44","metaDescription":"Schneider TeSys Ultra LUCLX6B magnetic control unit for motor protection. 0.09 kW at 400V, AC-44, 24V AC coil. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Unclassified"],"specifications":{"Depth":"60 mm","Range":"TeSys","Width":"45 mm","title":"LUCLX6B","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)","description":"Standard control unit, TeSys Ultra, 0.15-0.6A, 3P motors, magnetic protection, coil 24V AC","Product name":"TeSys Ultra","Motor power kW":"0.09 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 70 ms closing with LUB12 for control circuit 70 ms closing with LUB32 for control circuit 70 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 Ultra","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":"LUCL","Network frequency":"40...60 Hz","Compatibility code":"LUCL","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-41 AC-43","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","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":"Manual reset Short-circuit protection","Immunity to voltage dips":"70 % / 500 ms conforming to IEC 61000-4-11","Product or component type":"Magnetic 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":"140 mA at 24 V AC I maximum while closing with LUB12 220 mA at 24 V AC I maximum while closing with LUB32 220 mA at 24 V AC I maximum while closing with LUB38 70 mA at 24 V AC I rms sealed with LUB12 90 mA at 24 V AC I rms sealed with LUB32 90 mA at 24 V AC I rms sealed with LUB38","Product specific application":"Protection of variable speed drive or soft startsoft stop unit","[Uc] control circuit voltage":"24 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":"20...26.5 V for AC circuit 24 V in operation 14.5 V for AC circuit 24 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":"0.15...0.6 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/8af8994bfa3585a24bb8f814b1ac102b.pdf","sourceUrl":"https://www.se.com/sg/en/product/LUCLX6B/standard-control-unit-tesys-ultra-0-150-6a-3p-motors-magnetic-protection-coil-24v-ac/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LUCLX6B/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between LUCLX6B and other TeSys Ultra control units?","answer":"Within the TeSys Ultra family, the LUCLX6B is the low-power variant at 0.09 kW with a 24 V AC coil and AC-44 duty. Higher-rated siblings in the same form factor carry higher kW ratings and may use different control voltages or trip thresholds, but share the same 45 mm width and plug-in mounting."},{"question":"Can LUCLX6B be used with a 24 V DC coil?","answer":"No, the LUCLX6B control circuit is rated for 24 V AC only, with operating limits of 20...26.5 V AC and a dropout threshold of 14.5 V AC. It is not designed for DC control voltage."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LUCLX6B","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/LUCLX6B when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:21:01.794Z","lastPublished":"2026-09-02T08:21:01.794Z","indexable":true}}