{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LUCL05B","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LUCL05B","canonicalUrl":"https://aoctrl.com/schneider/LUCL05B","factsUrl":"https://aoctrl.com/api/mcp/products/LUCL05B","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys Ultra LUCL05B magnetic control unit, 1.5 kW at 400 V, 24 V AC coil, plug-in front face, manual reset with short-circuit protection.","salesMarkdown":"The Schneider Electric TeSys Ultra LUCL05B is a magnetic control unit — a compact, plug-in device that combines motor control and protection in a single 45 mm wide package. It is designed for 3-phase motor circuits, rated at 1.5 kW at 400...440 V AC, 2.2 kW at 500 V AC, and 3 kW at 690 V AC, all at 50/60 Hz. The 24 V AC control coil draws 140 mA inrush (220 mA with larger control modules) and settles to 70–90 mA sealed. The unit provides manual reset and short-circuit protection, with a tripping threshold of 14.2 x Ir ± 20%. It is specifically intended for protecting variable-speed drives or soft-start/soft-stop units, not just plain across-the-line starting. The utilisation categories — AC-41, AC-44, AC-43 — cover resistive, motor, and mixed loads, so it fits a range of downstream equipment. The 14.2 x Ir tripping threshold means the unit allows a high inrush — typical for a motor starting — before it trips on a short-circuit. That is a deliberate design for motor circuits, not a general-purpose breaker characteristic. The 35 ms opening time (with any of the LUB12/32/38 control modules) means it clears a fault fast enough to limit let-through energy to downstream components. The SELV separation of 400 V between control/auxiliary and main circuits means the 24 V control loop is safely isolated from the power circuit — important for PLC or safety-relay interfaces. The TH protective treatment per IEC 60068 adds some humidity resistance for non-condensing environments. The 45 x 66 x 60 mm footprint is compact enough for dense layouts. Heat dissipation is 2 W with the LUB12 control module, 3 W with LUB32 or LUB38 — negligible for most enclosures but worth noting if you are packing many units in a sealed cabinet. The LUCL05B is certified to EN/IEC 60947-6-2, UL 60947-4-1, and CSA C22.2 No 60947-4-1 (with phase barrier). That covers the main global markets: IEC for Europe/Asia, UL for North America, CSA for Canada. The shock and vibration ratings — 10 gn open / 15 gn closed, and 2–4 gn at 5–300 Hz — confirm it holds up in machinery with moderate mechanical stress.","metaTitle":"Schneider TeSys Ultra LUCL05B Magnetic Control Unit","metaDescription":"Schneider Electric TeSys Ultra LUCL05B magnetic control unit. 1.5 kW at 400 V, 24 V AC coil, manual reset, short-circuit protection. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"60 mm","Range":"TeSys","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 Ultra","Motor power kW":"1.5 kW at 400...440 V AC 50/60 Hz 2.2 kW at 500 V AC 50/60 Hz 3 kW at 690 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-41 AC-44 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":"1.25...5 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/811702eb320ee78267c63bbfbc253664.pdf","sourceUrl":"https://www.se.com/th/en/product/LUCL05B/standard-control-unit-tesys-ultra-3p-1-25-to-5a-690vac-magnetic-protection-24vac-coil/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LUCL05B/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between LUCL05B and LUCL12B?","answer":"The LUCL05B and LUCL12B are different power ratings within the same TeSys Ultra family. The LUCL05B is rated for 1.5 kW at 400 V, while the LUCL12B is a higher-current variant. Both share the same 45 mm width, plug-in mounting, and 24 V AC control coil, but the power-handling and trip settings differ. Check the motor full-load current against each unit's rating to select the correct one."},{"question":"Can LUCL05B be used for single-phase motor?","answer":"The LUCL05B is specified for 3-phase motor loads. Its utilisation categories (AC-41, AC-44, AC-43) and the 14.2 x Ir trip threshold are designed for three-phase motor characteristics. For single-phase motor protection, a different control unit from the TeSys range would be more appropriate."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LUCL05B","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/LUCL05B 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}}