{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MGN61851","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"MGN61851","canonicalUrl":"https://aoctrl.com/schneider/MGN61851","factsUrl":"https://aoctrl.com/api/mcp/products/MGN61851","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Multi9 C60H-DC miniature circuit breaker, 2-pole, 20 A, C-curve, DC rated, breaking capacity 20 kA at 250 V DC, clip-on DIN rail mount, grey.","salesMarkdown":"The MGN61851 is a Schneider Electric Multi9 C60H-DC miniature circuit breaker — a 2-pole, 20 A, C-curve unit built for DC networks. ## Breaking capacity and voltage ratings The DC breaking capacity is specified at four voltage points: 20 kA Icu at 220 V DC, 20 kA at 250 V DC, 10 kA at 440 V DC, and 6 kA at 500 V DC. That means in a 250 V DC bus (common in telecom or solar combiner boxes), the breaker clears a 20 kA fault without external current limiting. At the higher 500 V DC level (typical in some battery banks), the interrupting capacity drops to 6 kA — still adequate for most series-string faults, but verify your available fault current against the 6 kA limit. ## DIN rail integration and terminal sizing The IP20 finger-safe front face and IP40 modular enclosure rating let it sit in a standard distribution board without additional shrouding. Padlockable toggle for lockout/tagout compliance.","metaTitle":"MGN61851 Multi9 C60H-DC 20A C-Curve 2P DC MCB, 20 kA at 250","metaDescription":"MGN61851 is a 20 A DC miniature circuit breaker, 2-pole, C-curve, 20 kA breaking capacity at 250 V DC. Certified to EN/IEC 60947-2. Current lifecycle stage. Available to order agai","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"73 mm","Range":"Multi9","Width":"36 mm","Colour":"Grey","Height":"81 mm","Standards":"EN/IEC 60947-2","Curve code":"C","9 Mm Pitches":"4","Control type":"Toggle","Network type":"DC","Product name":"Multi9 C60H-DC","Mounting mode":"Clip-on","Tropicalisation":"2 conforming to IEC 60068-2","lifecycle_stage":"current","Local signalling":"ON/OFF indication","Mounting support":"DIN rail","Pollution degree":"3 conforming to EN 60947-2","Breaking capacity":"20 kA Icu at 220 V DC conforming to EN/IEC 60947-2 20 kA Icu at 250 V DC conforming to EN/IEC 60947-2 10 kA Icu at 440 V DC conforming to EN/IEC 60947-2 6 kA Icu at 500 V DC conforming to EN/IEC 60947-2","Device short name":"C60H-DC","Poles description":"2P","Relative humidity":"95 % at 55 °C","Tightening torque":"2.5 N.m top or bottom","Device application":"Distribution","[In] rated current":"20 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":"3000 cycles L/R = 2 ms","Mechanical durability":"20000 cycles","Wire stripping length":"14 mm for top or bottom connection","Connections - terminals":"Tunnel type terminal (top or bottom)1...25 mm² (AWG 18...AWG 4) - rigid stranded Tunnel type terminal (top or bottom)1...16 mm² (AWG 18...AWG 6) - flexible Tunnel type terminal (top or bottom)1...16 mm² (AWG 18...AWG 6) - flexible with ferrule Tunnel type terminal (top or bottom) - 2 cable(s) 1...10 mm² (AWG 18...AWG 8) - rigid stranded Tunnel type terminal (top or bottom) - 2 cable(s) 1...10 mm² (AWG 18...AWG 8) - flexible Tunnel type terminal (top or bottom) - 2 cable(s) 1...10 mm² (AWG 18...AWG 8) - flexible with ferrule Tunnel type terminal (top or bottom) - 3 cable(s) 1 mm² (AWG 18) - flexible stranded","IP degree of protection":"IP20 conforming to IEC 60529 IP40 (modular enclosure) conforming to IEC 60529","Magnetic tripping limit":"8.5 x In +/- 20 % DC","Earth-leakage protection":"Without","Provision for padlocking":"Padlockable","Number of protected poles":"2","Product or component type":"Miniature circuit-breaker","Suitability for isolation":"Yes conforming to EN/IEC 60947-2","Contact position indicator":"Yes","[Ui] rated insulation voltage":"500 V DC conforming to EN/IEC 60947-2","[Ue] rated operational voltage":"250 V DC 500 V DC 220 V DC 440 V DC","Ambient air temperature for storage":"-40...85 °C","Ambient air temperature for operation":"-25...70 °C","[Ics] rated service breaking capacity":"15 kA 75 % conforming to EN/IEC 60947-2 - 220 V DC 15 kA 75 % conforming to EN/IEC 60947-2 - 250 V DC 7.5 kA 75 % conforming to EN/IEC 60947-2 - 440 V DC 4.5 kA 75 % conforming to EN/IEC 60947-2 - 500 V","[Uimp] rated impulse withstand voltage":"6 kV conforming to EN/IEC 60947-2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/72ccf6977868d4f317003da1808af19a.pdf","sourceUrl":"https://www.se.com/vn/en/product/MGN61851/multi9-c60hdc-mcb-2p-20-a-c-curve-500-v-6-ka/","alternativesUrl":"https://aoctrl.com/api/mcp/products/MGN61851/alternatives.json"},"ai":{"faq":[{"question":"What are the breaking capacity ratings for MGN61851 at different DC voltages?","answer":"The MGN61851 offers 20 kA Icu at 220 V DC and 250 V DC, 10 kA at 440 V DC, and 6 kA at 500 V DC, all per EN/IEC 60947-2."},{"question":"What compliance documentation does MGN61851 carry?","answer":"The MGN61851 is certified to EN/IEC 60947-2, carries IP20/IP40 protection per IEC 60529, and includes tropicalisation class 2 per IEC 60068-2. Pollution degree 3 per EN 60947-2 applies."},{"question":"How do I get current pricing and availability for MGN61851?","answer":"The MGN61851 is sourced to order against an RFQ through independent distribution; current pricing and availability are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/MGN61851","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/MGN61851 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}}