{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"REL52439","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"REL52439","canonicalUrl":"https://aoctrl.com/schneider/REL52439","factsUrl":"https://aoctrl.com/api/mcp/products/REL52439","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Sepam series 20 REL52439 protection relay, 3 CT + I0 input, 12 V DC supply, 2 RJ45 ports, Russian language, PCE package, active.","salesMarkdown":"## Overview The REL52439 is a Schneider Sepam series 20 protection relay in the Easergy range, wired for 3 CT + I0 input and powered from a 12 V DC supply. It ships in a PCE package with Russian-language firmware and two RJ45 ports for network connectivity. ## Selection and comparison Compared to the REL52437, which runs on a 155.0 V supply, the REL52439 operates on 12.0 V — pick the REL52437 when the control voltage is 155.0 V rather than 12.0 V. Against the REL52438, which uses an RS485 interface, the REL52439 provides 2 RJ45 ports; choose the REL52438 when the network requires RS485 instead of Ethernet. Schneider lists the REL52439 as active production; it is a current catalog item with standard lead times. An RFQ confirms availability and pricing for the exact build code.","metaTitle":"Schneider REL52439 Sepam series 20 protection relay, 3 CT + I0, 12 V DC","metaDescription":"Schneider REL52439 Sepam series 20 protection relay: 3 CT + I0 input, 12 V DC supply, 2 RJ45 ports, Russian language, PCE package, active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["General Purpose Relays"],"specifications":{"Input type":"3 CT + I0","User language":"Russian","lifecycle_stage":"current","Range of product":"Easergy P3","Switching voltage":"12 V DC","Physical interface":"2 RJ45","[Us] rated supply voltage":"24...48 V","[Ue] rated operational voltage":"24...230 V AC/DC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1,938.00","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f2e2389e739e9de263f4bc3a4fee11be.pdf","sourceUrl":"https://www.se.com/th/en/product/REL52439/ecofit-sepam-s20-s40-with-easergy-p3u30-russian-2-rj45-12-v-dc-24-230-v-ac-dc-24-48-v/","alternativesUrl":"https://aoctrl.com/api/mcp/products/REL52439/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/REL52439","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/REL52439 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}}