{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MGN60903","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"MGN60903","canonicalUrl":"https://aoctrl.com/schneider/MGN60903","factsUrl":"https://aoctrl.com/api/mcp/products/MGN60903","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Multi9 C60N series, MGN60903 miniature circuit breaker, 3 A rated current, C curve, 4 poles, 20 kA breaking capacity at 240 V AC, 35 mm DIN rail mount.","salesMarkdown":"The MGN60903 is a C60N miniature circuit breaker from Schneider Electric's Multi9 range — a 4-pole, 3 A thermal-magnetic unit with a C curve and 20 kA breaking capacity at 240 V AC. It's built to EN/IEC 60947-2, Category A, and rated for isolation duty. The 35 mm DIN-rail mount and tunnel terminals (up to 25 mm²) make it a straight swap into existing distribution boards or sub-panels. The 3 A rating at 50 °C (per EN/IEC 60947-2) sets the continuous current limit before the thermal element starts its trip curve — sized for a 3 A resistive or lightly inductive load, not a motor starting surge. The C curve means magnetic trip occurs at 8.5× In (±20 %), so it holds through moderate inrush (small transformers, capacitor banks) but clears fast on a hard short. Breaking capacity is the headline: 20 kA Icu at 240 V AC phase-to-phase (10 kA at 415 V, 6 kA at 440 V). The Ics (service breaking capacity) is 75 % of Icu at each voltage level, so after one high-fault interruption the breaker still clears subsequent faults at that reduced rating. The 4 protected poles cover three-phase plus neutral, common for distribution sub-feeds in commercial or light industrial panels. Occupies 8 modules of 9 mm pitch (72 mm total width) — count that against your enclosure fill factor before ordering. Certified to EN/IEC 60947-2, with pollution degree 3 (conducive to industrial environments with occasional condensation or conductive dust). The suitability-for-isolation marking (per the same standard) means it can be used as a disconnecting means for safe maintenance — the contact position indicator gives visual confirmation of open/closed state. Earth-leakage protection requires a separate block (not integrated).","metaTitle":"MGN60903 C60N MCB, 3A C-Curve 4P 20kA, Multi9","metaDescription":"MGN60903 C60N miniature circuit breaker, 3 A rated, C curve, 4 poles, 20 kA breaking capacity at 240 V AC. EN/IEC 60947-2. Active production. Quoted on request.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"73 mm","Range":"Multi9","Width":"72 mm","Height":"81 mm","Standards":"EN/IEC 60947-2","Curve code":"C","9 Mm Pitches":"8","Control type":"Toggle","Network type":"DC","Product name":"C60","Mounting mode":"Fixed","lifecycle_stage":"current","Local signalling":"ON/OFF indication","Mounting support":"35 mm symmetrical DIN rail","Pollution degree":"3 conforming to EN/IEC 60947-2","Range of product":"C60","Breaking capacity":"20 kA Icu at 240 V AC 50/60 Hz phase to phase conforming to EN/IEC 60947-2 10 kA Icu at 415 V AC 50/60 Hz phase to phase conforming to EN/IEC 60947-2 6 kA Icu at 440 V AC 50/60 Hz phase to phase conforming to EN/IEC 60947-2","Device short name":"C60N","Poles description":"4P","Tightening torque":"Power circuit: 2 N.m","Device application":"Distribution","[In] rated current":"3 A at 50 °C conforming to EN/IEC 60947-2","Trip unit technology":"Thermal-magnetic","Utilisation category":"Category A conforming to EN/IEC 60947-2","Electrical durability":"10000 cycles conforming to EN/IEC 60947-2","Mechanical durability":"20000 cycles","Wire stripping length":"Power circuit: 14 mm","Connections - terminals":"Tunnel type terminals1...25 mm² rigid Tunnel type terminals1...25 mm² flexible without cable end Tunnel type terminals1...25 mm² flexible with cable end","IP degree of protection":"IP20 conforming to EN/IEC 60947-2","Magnetic tripping limit":"8.5 x In +/- 20 %","Earth-leakage protection":"Separate block","Number of protected poles":"4","Product or component type":"Miniature circuit-breaker","Suitability for isolation":"Yes conforming to EN/IEC 60947-2","Contact position indicator":"Yes","[Ue] rated operational voltage":"440 V AC 50/60 Hz 240 V AC 50/60 Hz phase to phase","Ambient air temperature for storage":"-40...80 °C","Ambient air temperature for operation":"-30...70 °C","[Ics] rated service breaking capacity":"15 kA 75 % conforming to EN/IEC 60947-2 - 240 V AC 50/60 Hz 7.5 kA 75 % conforming to EN/IEC 60947-2 - 415 V AC 50/60 Hz 4.5 kA 75 % conforming to EN/IEC 60947-2 - 440 V AC 50/60 Hz","Comb busbar and distribution block compatibility":"Top or bottom: YES"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/df17313a8bb2ba1dcad9847255df36fe.pdf","sourceUrl":"https://www.se.com/be/en/product/MGN60903/c60-circuit-breaker-c60n-4p-3a-c-curve/","alternativesUrl":"https://aoctrl.com/api/mcp/products/MGN60903/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy MGN60903 and get a price?","answer":"The MGN60903 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is the breaking capacity of MGN60903?","answer":"The MGN60903 has a breaking capacity of 20 kA Icu at 240 V AC phase-to-phase, 10 kA at 415 V, and 6 kA at 440 V, all per EN/IEC 60947-2. The Ics (service breaking capacity) is 75 % of Icu at each voltage level."},{"question":"What compliance documentation does MGN60903 carry?","answer":"The MGN60903 is certified to EN/IEC 60947-2, rated for pollution degree 3, and marked as suitable for isolation. It carries an IP20 degree of protection and is designed for 35 mm DIN-rail mounting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/MGN60903","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/MGN60903 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}}