{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LX4FJ150","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LX4FJ150","canonicalUrl":"https://aoctrl.com/schneider/LX4FJ150","factsUrl":"https://aoctrl.com/api/mcp/products/LX4FJ150","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys FJ series, contactor coil, LX4FJ150, 150 V DC control, DC low-consumption type, 45–60 ms opening / 50–60 ms closing.","salesMarkdown":"The LX4FJ150 is a replacement coil for Schneider TeSys FJ series contactors, rated for 150 V DC control circuits. It's a DC low-consumption design — the inrush coil resistance is 19.81 Ω at 20 °C, then the holding circuit switches to a 4985 Ω path, dropping the hold current to a fraction of the pick-up draw. That matters for DC supplies where sustained coil power adds up, or where the control transformer is already loaded. Opening time is 45–60 ms; closing time is 50–60 ms. The coil has no built-in suppressor module, so you'll need an external flyback diode or RC snubber across the coil if the control circuit doesn't already have one — standard practice for DC coils driving inductive loads. ## Control voltage limits and operating range The coil holds in at 85–110 % of rated Uc (127.5–165 V DC) at 55 °C, and drops out between 20–35 % of Uc (30–52.5 V DC). That's a wide dropout margin — useful if your DC bus sags during a motor start or a downstream short.","metaTitle":"Schneider LX4FJ150 TeSys contactor coil, 150 V DC","metaDescription":"Active-production replacement coil for TeSys FJ contactors. 150 V DC control, 45–60 ms opening, 50–60 ms closing. DC low-consumption design. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactor & Starter Coils"],"specifications":{"Range":"TeSys","title":"LX4FJ150","Category":"18401-WORLD SERVICE PARTS(CTR ACCESS)","description":"contactor coil - FJ - 150 V DC","Operating time":"45...60 ms opening 50...60 ms closing","Coil technology":"Without built-in suppressor module","lifecycle_stage":"current","Device short name":"LX4FJ","Average resistance":"19.81 Ohm inrush 68 °F (20 °C) 4985 Ohm holding 68 °F (20 °C)","Control circuit type":"DC low consumption","Nbr. of units in pkg.":"1","Product or Component Type":"Contactor coil","[Uc] control circuit voltage":"150 V DC","Control circuit voltage limits":"Drop-out 0.2...0.35 Uc 131 °F (55 °C)) Operational 0.85...1.1 Uc 131 °F (55 °C))","Ambient Air Temperature for Operation":"23...131 °F (-5...55 °C)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/754d2e23621c87084de559f63bff8628.pdf","sourceUrl":"https://www.se.com/th/en/product/LX4FJ150/contactor-coil-fj-150-v-dc/"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LX4FJ150 in this family?","answer":"The TeSys FJ coil family uses the same mechanical footprint across voltage ratings. The direct sibling for a different control voltage would be another LX4FJxx coil (e.g., LX4FJ220 for 220 V DC). No pin-compatible cross-family substitute is listed; stick with the FJ-series coil for a drop-in swap."},{"question":"What is LX4FJ150's listed range and category?","answer":"The range is TeSys. The category is 18401-WORLD SERVICE PARTS(CTR ACCESS) — a service-parts classification for control accessories."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LX4FJ150","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/LX4FJ150 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}