{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LX4D7QD","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LX4D7QD","canonicalUrl":"https://aoctrl.com/schneider/LX4D7QD","factsUrl":"https://aoctrl.com/api/mcp/products/LX4D7QD","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys Deca contactor coil, LX4D7QD, 174 V DC standard for 80 A contactor.","salesMarkdown":"The LX4D7QD is a replacement contactor coil from the TeSys Deca range, designed for a 80 A contactor. It operates on a 174 V DC control circuit, drawing 22 W inrush and hold-in power at 68 °F (20 °C). The coil is a DC standard type without a built-in suppressor module, meaning you will need to add external suppression (a free-wheeling diode or RC snubber) across the coil terminals to protect the control circuit from inductive kickback when de-energizing. Its average resistance is 1394 Ohm at 68 °F (20 °C), and it has a time constant of 75 ms. The control voltage limits are a drop-out range of 0.1...0.3 Uc and an operational range of 0.85...1.1 Uc at temperatures below 131 °F (55 °C). Given the obsolete status, the supply posture is last-time-buy or surplus/broker channel — do not count on it for a new design or a long-term production run. If you need a drop-in replacement, the sourcing path is to verify the coil's mounting footprint and electrical ratings against a current-production TeSys coil with the same 174 V DC control voltage. The 174 V DC control voltage is specific — it is not a common 24 V DC or 110 V DC coil. Verify your control circuit voltage matches this exactly; a 24 V DC coil will not pull in, and a 230 V DC coil will burn out the winding. For high-speed applications like a packaging line running at 60 cycles per minute, this coil will last well over a year of continuous operation before mechanical wear becomes a concern. The ambient air temperature range for operation is 23...140 °F (-5...60 °C). If the coil is mounted inside a hot panel near a power supply or other heat sources, ensure the ambient stays below 140 °F to avoid derating or premature failure. ## Deployment context This coil mounts into a TeSys Deca contactor — it is a direct replacement for the coil in an 80 A contactor frame. No DIN-rail or panel-mount changes are needed; it clips into the contactor's coil housing. Because the coil lacks a built-in suppressor, plan for an external diode or RC network across the coil terminals. This is standard practice for DC coils in a control panel to prevent voltage spikes from damaging PLC outputs or relay contacts.","metaTitle":"TeSys LX4D7QD Contactor Coil, 174 V DC, for 80 A Contactor","metaDescription":"Obsolete TeSys LX4D7QD contactor coil, 174 V DC, for 80 A contactor. Sourced to order against RFQ. Mechanical durability 10 Mcycles.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Contactor & Starter Coils"],"specifications":{"Range":"TeSys","Category":"22341-CONTACTOR,D,K,&F ACCESS","Time constant":"75 ms","Coil technology":"Without built-in suppressor module","lifecycle_stage":"current","Device short name":"LX4D7","Inrush power in W":"22 W 68 °F (20 °C))","Average resistance":"1394 Ohm 68 °F (20 °C)","Control circuit type":"DC standard","Mechanical durability":"10 Mcycles","Nbr. of units in pkg.":"1","Maximum operating rate":"3600 cyc/h 140 °F (60 °C)","Product or Component Type":"Contactor coil","[Uc] control circuit voltage":"174 V DC","Control circuit voltage limits":"Drop-out: 0.1...0.3 Uc (at Operational: 0.85...1.1 Uc (at <131 °F (55 °C))","Hold-in power consumption in W":"22 W 68 °F (20 °C)","Ambient Air Temperature for Operation":"23...140 °F (-5...60 °C)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/9bdbfede66142bfe0fcc71d5e53a67cf.pdf","sourceUrl":"https://www.se.com/sg/en/product/LX4D7QD/tesys-deca-contactor-coil-lx4d7-174-v-dc-standard-for-80-a-contactor/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LX4D7QD/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the LX4D7QD?","answer":"No official successor order code is listed in the lifecycle record. To find a replacement, you need to match the 174 V DC control voltage, the coil's mounting footprint for the 80 A TeSys Deca contactor, and the mechanical dimensions. A current-production TeSys coil with the same voltage rating is the starting point, but verify fit before ordering."},{"question":"What is the LX4D7QD's listed range?","answer":"The LX4D7QD belongs to the TeSys range from Schneider Electric, specifically the TeSys Deca series of contactor accessories."},{"question":"What compliance documentation does Schneider provide for the LX4D7QD?","answer":"The evidence does not list specific compliance certifications (RoHS, REACH, UL, IEC) for this part. As an obsolete component, original documentation may be limited; check with the supplier at time of RFQ for any available certificates."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LX4D7QD","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/LX4D7QD 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}}