{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LA4DFE","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LA4DFE","canonicalUrl":"https://aoctrl.com/schneider/LA4DFE","factsUrl":"https://aoctrl.com/api/mcp/products/LA4DFE","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys D LA4DFE interface amplifier module, relay output, 48 V DC control / 250 V AC switching, top-mounted on contactor.","salesMarkdown":"The Schneider Electric TeSys D LA4DFE is an interface amplifier module that sits between a low-level DC control signal and a contactor coil. It accepts a 48 V DC control supply and switches up to 250 V AC on the output side, letting a PLC or safety relay with a limited DC output drive a standard AC contactor coil. The module top-mounts directly onto a TeSys D contactor — no additional DIN-rail footprint needed. The built-in diode provides coil suppression, and an LED gives local status indication. Control voltage limits span 33...60 V DC at 20 °C, so a nominal 48 V DC supply with typical ±10 % tolerance (43.2...52.8 V) sits comfortably inside the window. The module draws 15 mA from that supply. State 0 is guaranteed at ≤ 1.3 mA and < 4.8 V, which means most PLC digital outputs with a low-side leakage under 2 mA will reliably turn the module off. On the output side, the rated operational voltage covers 24...250 V AC. The insulation voltage is rated 250 V per IEC 60947-5-1, so the module is sized for standard 240 V control circuits. ## Installation notes Top-mounts onto the contactor — no DIN rail consumed. The IP2X finger protection (VDE 0106) is typical for enclosed panel gear; not rated for washdown. Heat dissipation is 0.6 W on the control circuit — negligible for panel thermal budgeting. Ambient operating range is -25...55 °C, storage -40...80 °C. The TH protective treatment per IEC 60068 covers tropicalized environments.","metaTitle":"TeSys LA4DFE interface module, 48 V DC / 250 V AC","metaDescription":"Schneider Electric TeSys D LA4DFE interface amplifier module. 48 V DC control / 250 V AC switching. Active production. IEC 60255-5. Top-mounts on contactor.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Reversing Contactors"],"specifications":{"Range":"TeSys","title":"LA4DFE","Height":"0.5 in (12 mm)","Category":"22341-CONTACTOR,D,K,&F ACCESS","Standards":"IEC 60255-5","description":"TeSys D - interface amplifier module - relay - 48 V DC / 250 V AC","Mounting Mode":"Top mounted","Protection Type":"Built-in by diode","Technology Type":"Electromechanical","lifecycle_stage":"current","Heat dissipation":"0.6 W control circuit","Local signalling":"LED indicator","Device short name":"LA4D","Poles description":"3P","Current consumption":"15 mA 68 °F (20 °C)","Protective treatment":"TH IEC 60068","Electrical durability":"10 Mcycles 240 V","Connections - terminals":"Control circuit connector 1 0.002...0.004 in² (1...2.5 mm²)flexible with cable end Control circuit connector 1 0.002...0.004 in² (1...2.5 mm²)flexible without cable end Control circuit connector 1 0.002...0.004 in² (1...2.5 mm²)solid with cable end Control circuit connector 1 0.002...0.004 in² (1...2.5 mm²)solid without cable end Control circuit connector 2 0.002...0.004 in² (1...2.5 mm²)flexible with cable end Control circuit connector 2 0.002...0.004 in² (1...2.5 mm²)flexible without cable end Control circuit connector 2 0.002...0.004 in² (1...2.5 mm²)solid with cable end Control circuit connector 2 0.002...0.004 in² (1...2.5 mm²)solid without cable end","IP degree of protection":"IP2X conforming to VDE 0106","Immunity to microbreaks":"4 ms","Product or Component Type":"Interface module","[Us] rated supply voltage":"48 V DC","Current state 0 guaranteed":"<= 1.3 mA","Voltage state 0 guaranteed":"< 4.8 V","Voltage state 1 guaranteed":"33 V","[Ui] rated insulation voltage":"250 V - control circuit IEC 60947-5-1","Control circuit voltage limits":"33...60 V at 68 °F (20 °C)","[Ue] rated operational voltage":"Control circuit 24...250 V AC","Ambient Air Temperature for Storage":"-40...176 °F (-40...80 °C)","Ambient Air Temperature for Operation":"-13...131 °F (-25...55 °C)","Permissible ambient air temperature around the device":"-13...158 °F (-25...70 °C)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/1a0a1f573953869773045536c228064c.pdf","sourceUrl":"https://www.se.com/ie/en/product/LA4DFE/tesys-d-interface-amplifier-module-relay-48-v-dc-250-v-ac/"},"ai":{"faq":[{"question":"What is the closest alternative to LA4DFE in the TeSys D family?","answer":"Within the TeSys D interface module range, the LA4DFE is the 48 V DC control variant. The LA4DA is the 24 V DC version and the LA4DB is 110 V DC. Pinout and mounting are identical; the control voltage limits differ. Choose based on your PLC output voltage."},{"question":"What compliance documentation does Schneider provide for LA4DFE?","answer":"The module is designed to IEC 60255-5 (measuring relays and protection equipment) and IEC 60947-5-1 (control circuit devices). The TH protective treatment follows IEC 60068. Standard Schneider declarations for CE, UKCA, and RoHS apply to the TeSys D range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LA4DFE","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/LA4DFE when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}