{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LC4D40E7","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LC4D40E7","canonicalUrl":"https://aoctrl.com/schneider/LC4D40E7","factsUrl":"https://aoctrl.com/api/mcp/products/LC4D40E7","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys LC4-D DOL starter, LC4D40E7, 40 A rated operational current, 48 V AC 50/60 Hz coil, AC-3 utilisation category, plate mounting, 130 mm depth × 281 mm width × 143 mm height.","salesMarkdown":"## TeSys LC4-D DOL starter — 40 A, 48 V AC coil The Schneider Electric LC4D40E7 is a direct-on-line (DOL) starter from the TeSys LC4-D range, combining a contactor and fuse disconnector in one plate-mounted assembly. Rated at 40 A operational current (Ie) under AC-3 utilisation category, it is sized for squirrel-cage motor starting across a wide voltage band: 11 kW at 220–230 V AC, 18.5 kW at 380–400 V, 22 kW at 415–500 V, and 30 kW at 660–690 V, all at 50/60 Hz. The 48 V AC coil suits control circuits fed from a step-down transformer — common in machine-tool and conveyor panels where low-voltage control is standard for operator safety. ## AC-3 duty and motor coordination AC-3 utilisation category means this starter is rated for starting squirrel-cage motors and disconnecting them while running — the standard duty for most industrial motor branches. The 40 A continuous rating sets the thermal budget for the main poles; coordination with an overload relay (such as the TeSys LR2 or LRD series) is required to provide motor overload and phase-loss protection. The starter itself does not include integral overload protection — that is added externally between the contactor and the motor. Plate-mounted design with a footprint of 281 mm wide × 143 mm tall × 130 mm deep. The depth is the dimension behind the panel — relevant when boxing into a shallow enclosure or when gland plates and busbars reduce available clearance. Width of 281 mm means it occupies roughly 11 inches of backpanel real estate; plan for side-access to the fuse disconnector handle and coil terminals. The LC4 prefix indicates the integrated fuse-switch disconnector upstream of the contactor, saving a separate fuse base and reducing wiring labour. Listed as current production (active lifecycle stage). No end-of-life notice or last-time-buy date is recorded for this order code. For new panel designs or BOM freeze, the LC4D40E7 is a standard catalogue item within the TeSys range, meaning supply continuity is typical for the series.","metaTitle":"Schneider Electric LC4D40E7 DOL Starter, 40 A, 48 V AC Coil","metaDescription":"Schneider Electric LC4D40E7 TeSys DOL starter, 40 A rated operational current, 48 V AC coil, AC-3 utilisation category.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"130 mm","Width":"281 mm","Height":"143 mm","Motor power kW":"11 kW at 220...230 V AC 50/60 Hz 22 kW at 415 V AC 50/60 Hz 22 kW at 440 V AC 50/60 Hz 22 kW at 500 V AC 50/60 Hz 30 kW at 660...690 V AC 50/60 Hz 18.5 kW at 380...400 V AC 50/60 Hz","lifecycle_stage":"current","Mounting support":"Plate","Range of product":"TeSys","Device short name":"LC4","Device composition":"Contactor Fuse disconnector","Utilisation category":"AC-3","Product or component type":"DOL starter","[Ie] rated operational current":"40 A","[Ue] rated operational voltage":"48 V AC 50/60 Hz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.se.com/be/en/product/LC4D40E7/on-mounting-plate-dol-starter-tesys-lc4d-40-a-coil-48-v-ac/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LC4D40E7/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between the LC4D40E7 and the LC1D40?","answer":"The LC4D40E7 is a DOL starter that integrates a contactor and a fuse disconnector in one assembly. The LC1D40 is a bare contactor only — it lacks the upstream fuse-switch disconnector. If your panel requires branch-circuit short-circuit protection integrated with the starter, the LC4D40E7 saves a separate fuse base and wiring. If you already have a separate disconnect or are using a motor circuit protector (MCP), the LC1D40 contactor alone may be the correct choice."},{"question":"Does the LC4D40E7 include overload protection?","answer":"No. The LC4D40E7 is a DOL starter combining a contactor and fuse disconnector, but it does not include an integral overload relay. An external overload relay — such as the TeSys LR2 or LRD series — must be added between the contactor output and the motor to provide thermal overload and phase-loss protection."},{"question":"What are the specifications of the Schneider LC4D40E7?","answer":"The LC4D40E7 is a TeSys LC4-D DOL starter rated at 40 A operational current (Ie) with a 48 V AC 50/60 Hz coil. Motor power ratings: 11 kW at 220–230 V AC, 18.5 kW at 380–400 V, 22 kW at 415–500 V, and 30 kW at 660–690 V AC, all at 50/60 Hz. Utilisation category is AC-3. Mounting is plate-mount; dimensions are 281 mm wide × 143 mm high × 130 mm deep."},{"question":"What is the compatible overload relay for the LC4D40E7?","answer":"The TeSys range offers overload relays in the LR2 and LRD series that are mechanically and electrically compatible with LC4-D contactors. Selection depends on the motor full-load current and the required trip class. For a 40 A contactor, an overload relay with an adjustment range covering the motor FLA — typically 30–40 A — is appropriate. Confirm the specific relay order code against the motor nameplate."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LC4D40E7","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/LC4D40E7 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}}