{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1SVR750488R8300","brand":"ABB","brandSlug":"abb","productSlug":"1SVR750488R8300","canonicalUrl":"https://aoctrl.com/abb/1SVR750488R8300","factsUrl":"https://aoctrl.com/api/mcp/products/1SVR750488R8300","rawCanonicalId":null},"summary":{"shortDescription":"ABB 1SVR750488R8300 CM-MPN.62S, three-phase monitoring relay, phase loss and voltage loss protection, 0.45 kgs, current production.","salesMarkdown":"## Three-phase supply monitoring in the panel The ABB 1SVR750488R8300 is a CM-MPN.62S three-phase monitoring relay that guards motor and pump circuits against phase loss, phase reversal, and undervoltage conditions. It sits in the control panel alongside the contactor and overload — when a phase drops, the relay opens its output, dropping out the contactor coil before the motor single-phases. ## What the monitoring functions cover It also detects phase reversal: if the phase rotation sequence is incorrect, the relay will not pick up, preventing the motor from running backwards. Undervoltage monitoring is built into the same measurement path — if the line voltage falls below the adjustable threshold, the relay drops out, protecting downstream equipment from brownout conditions. The specific voltage range and time delays are set via the front-panel potentiometers.","metaTitle":"ABB 1SVR750488R8300 CM-MPN.62S Phase & Voltage Loss Relay","metaDescription":"ABB 1SVR750488R8300 CM-MPN.62S phase and voltage loss relay, current production. Monitors three-phase systems for phase loss, phase reversal, and undervoltage.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["General Purpose Relays"],"specifications":{"title":"1SVR750488R8300","Part #":"1SVR750488R8300","Weight":"0.45 kgs","Category":"Relays","description":"ABB 1SVR750488R8300 CM-MPN.62S THRE|ABB 1SVR 7504 488 R8300 PHASE","Sub Category":"Phase & Voltage Loss Relays","Top Category":"Circuit Breakers, Fuses & Protection","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$128.27 – $213.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/fc350d7e0452d716124e7c8dc4f41050.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does ABB 1SVR750488R8300 provide phase loss protection?","answer":"Yes. The CM-MPN.62S monitors three-phase supplies and detects phase loss, phase reversal, and undervoltage conditions."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/1SVR750488R8300","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/1SVR750488R8300 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}}