{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MGP1252L3N","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"MGP1252L3N","canonicalUrl":"https://aoctrl.com/schneider/MGP1252L3N","factsUrl":"https://aoctrl.com/api/mcp/products/MGP1252L3N","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric PowerPacT 4, MGP1252L3N, Molded Case Circuit Breaker, 1P+N, 125A at 40°C, 230V AC, 25kA Icu at 415V AC, thermal-magnetic TM-D trip unit, toggle control, panel-mounted.","salesMarkdown":"The Schneider Electric MGP1252L3N is a PowerPacT 4 molded case circuit breaker (MCCB) with a 1P+N pole configuration, rated 125 A at 40 °C for distribution applications. This part is marked obsolete by the manufacturer. There is no listed official successor order code in the record. No direct drop-in replacement is documented here; a cross-reference search against the PowerPacT 4 family's active catalog numbers would be the next step for a new design. Rated operational voltage is 230 V AC 50/60 Hz, so this is a single-phase (L3-N) breaker for 230 V line-to-neutral circuits. Rated insulation voltage of 750 V and impulse withstand of 8 kV give headroom for surge environments. The toggle control is manual on/off; no shunt trip or auxiliary switch is built in. Mounting is backplate (panel-mounted), horizontal or vertical orientation accepted. Conforms to BS EN 60947-2, the UK/EU standard for low-voltage switchgear and controlgear — circuit-breakers. It is also suitability for isolation per that standard, so it can be used as a disconnecting means in a panel. The 20000 electrical cycles at rated current (277 V In/2) and 20000 mechanical cycles give a reasonable service life for a distribution breaker in a fixed installation.","metaTitle":"MGP1252L3N PowerPacT 4 MCCB, 125A, 1P+N, 25kA Icu, Obsolete","metaDescription":"Schneider Electric MGP1252L3N PowerPacT 4 MCCB, 125A at 40°C, 1P+N, 25kA Icu at 415V AC. BS EN 60947-2. Obsolete — sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Standards":"BS EN 60947-2","Control type":"Toggle","Trip unit name":"TM-D","Protection type":"L : for overload protection (thermal) I : for short-circuit protection (magnetic)","lifecycle_stage":"current","Mounting support":"Backplate","Phase connection":"L3 - N","Range of product":"PowerPacT 4","Trip unit rating":"125 A at 40 °C","Mounting position":"Horizontal and vertical","Number of modules":"2 module(s)35 mm","Poles description":"1P + N","Device application":"Distribution","[In] rated current":"125 A at 40 °C","Trip unit technology":"Thermal-magnetic","Utilisation category":"Category A","Electrical durability":"20000 cycles at 277 V In/2 10000 cycles at 277 V In","Mechanical durability":"20000 cycles","Earth-leakage protection":"Without","Product or component type":"Circuit breaker","Suitability for isolation":"Yes conforming to BS EN 60947-2","Circuit breaker mounting mode":"Panel-mounted","[Ui] rated insulation voltage":"750 V","Trip unit protection functions":"LI","[Ue] rated operational voltage":"230 V AC 50/60 Hz","Thermal protection adjustment range":"125 A","[Uimp] rated impulse withstand voltage":"8 kV","[Ics] rated service short-circuit breaking capacity":"25 kA at 415 V AC 50/60 Hz","[Icu] rated ultimate short-circuit breaking capacity":"25 kA Icu at 415 V AC 50/60 Hz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/9c300016fda7c00649f69674112b1396.pdf","sourceUrl":"https://www.se.com/uk/en/product/MGP1252L3N/powerpact-4-molded-case-circuit-breaker-2p-125a-230-v-l3-n/","alternativesUrl":"https://aoctrl.com/api/mcp/products/MGP1252L3N/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy MGP1252L3N?","answer":"This obsolete part is sourced through independent distribution channels. Submit an RFQ for current availability and pricing — confirmed at quote time, not from a live stock count."},{"question":"What standards does MGP1252L3N comply with?","answer":"It conforms to BS EN 60947-2 for low-voltage switchgear and is suitability for isolation per that standard."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/MGP1252L3N","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/MGP1252L3N 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}}