{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1SVR760487R8300","brand":"ABB","brandSlug":"abb","productSlug":"1SVR760487R8300","canonicalUrl":"https://aoctrl.com/abb/1SVR760487R8300","factsUrl":"https://aoctrl.com/api/mcp/products/1SVR760487R8300","rawCanonicalId":null},"summary":{"shortDescription":"ABB CM-MPN.52P phase and voltage loss relay, 1SVR760487R8300, 0.45 kgs, General Purpose Relays category.","salesMarkdown":"## Phase monitoring relay for three-phase systems The ABB 1SVR760487R8300 is a phase and voltage loss relay from the CM-MPN.52P series, designed to monitor three-phase mains for phase failure, phase sequence reversal, and undervoltage conditions. ## What the phase-loss detection means for your line A phase-loss relay like this one drops its output when one of the three phases falls below the pickup threshold — typically around 80% of nominal. That prevents a motor from single-phasing, which would draw locked-rotor current on the remaining phases and burn the winding in minutes. The CM-MPN.52P also checks phase sequence, so if a motor leads are swapped during maintenance, the relay holds the contactor open until the rotation is corrected. This saves a callout for a phase-rotation meter at startup. ## Sourcing this relay for a BOM line If you're replacing an older ABB phase-loss relay, confirm the wiring diagram matches; the terminal layout can vary between series.","metaTitle":"ABB 1SVR760487R8300 CM-MPN.52P Phase & Voltage Loss Relay","metaDescription":"ABB 1SVR760487R8300 phase and voltage loss relay, 0.45 kgs, current lifecycle. Sourced to order against an RFQ. Phase monitoring relay for three-phase systems.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["General Purpose Relays"],"specifications":{"title":"1SVR760487R8300","Part #":"1SVR760487R8300","Weight":"0.45 kgs","Category":"Relays","description":"ABB 1SVR760487R8300 CM-MPN.52P THRE|ABB 1SVR760487R8300","Sub Category":"Phase & Voltage Loss Relays","Top Category":"Circuit Breakers, Fuses & Protection","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$134.62 – $214.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0c89f07ebd60d2b5bdb89645fd04bd9a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the 1SVR760487R8300 used for?","answer":"It is a phase and voltage loss relay that monitors three-phase mains for phase failure, phase sequence reversal, and undervoltage conditions, typically protecting motor loads from single-phasing damage."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/1SVR760487R8300","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/abb/1SVR760487R8300 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}}