{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MGN61861","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"MGN61861","canonicalUrl":"https://aoctrl.com/schneider/MGN61861","factsUrl":"https://aoctrl.com/api/mcp/products/MGN61861","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Multi9 C60H-DC miniature circuit breaker, 1 pole, 4 A, curve K, 20 kA breaking capacity at 110 V DC, clip-on DIN rail mount, grey.","salesMarkdown":"It's rated 4 A at 50 °C (conforming to EN/IEC 60947-2) with a K-curve magnetic trip of 12 x In ±20 % DC. That curve means it's designed for DC loads with moderate inrush — think DC power supplies, control circuits, or DC distribution panels where you need a thermal-magnetic trip but don't want nuisance trips from a short capacitive charge. The breaking capacity steps are 20 kA at 110 V DC, 10 kA at 220 V DC, and 6 kA at 250 V DC — so at 110 V it handles a serious fault without upstream coordination worries. It's a category A breaker (no intentional short-time delay), suitable for isolation, and carries an IP20 finger-safe front with IP40 inside an enclosure. Clip-on DIN rail mount, 18 mm wide (2 x 9 mm pitches), 81 mm tall, 73 mm deep. It's a single-module footprint — standard for a 1P MCB. Tunnel-type terminals top and bottom accept up to 25 mm² rigid stranded, or 16 mm² flexible, with a 14 mm strip length and 2.5 N·m torque. You can land up to three 1 mm² flexible conductors per terminal if you're daisy-chaining. Pollution degree 3 means it's rated for industrial environments with conductive pollution, and tropicalisation class 2 (per IEC 60068-2) handles humidity up to 95 % at 55 °C. The toggle gives clear ON/OFF indication, and the contact position indicator confirms isolation visually. Padlockable for lockout/tagout.","metaTitle":"MGN61861 Multi9 C60H-DC MCB, 1P, 4 A, Curve K, DC","metaDescription":"MGN61861 is a 1-pole DC miniature circuit breaker from the Multi9 C60H-DC range. Rated 4 A, curve K, breaking capacity 20 kA at 110 V DC. Active production, sourced to order agains","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"73 mm","Range":"Multi9","Width":"18 mm","Colour":"Grey","Height":"81 mm","Standards":"EN/IEC 60947-2","Curve code":"K","9 Mm Pitches":"2","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 110 V DC conforming to EN/IEC 60947-2 10 kA Icu at 220 V DC conforming to EN/IEC 60947-2 6 kA Icu at 250 V DC conforming to EN/IEC 60947-2","Device short name":"C60H-DC","Poles description":"1P","Relative humidity":"95 % at 55 °C","Tightening torque":"2.5 N.m top or bottom","Device application":"Distribution","[In] rated current":"4 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":"12 x In +/- 20 % DC","Earth-leakage protection":"Without","Provision for padlocking":"Padlockable","Number of protected poles":"1","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 110 V DC 220 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 - 110 V DC 7.5 kA 75 % conforming to EN/IEC 60947-2 - 220 V DC 4.5 kA 75 % conforming to EN/IEC 60947-2 - 250 V DC","[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/2695b18e62a038cf0c8231b31b326d53.pdf","sourceUrl":"https://www.se.com/vn/en/product/MGN61861/multi9-c60hdc-mcb-1p-4-a-k-curve-250-v-6-ka/","alternativesUrl":"https://aoctrl.com/api/mcp/products/MGN61861/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy MGN61861 and how do I get a price?","answer":"This part 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 quote."},{"question":"What is the breaking capacity of MGN61861 at different DC voltages?","answer":"20 kA Icu at 110 V DC, 10 kA at 220 V DC, and 6 kA at 250 V DC, all conforming to EN/IEC 60947-2."},{"question":"What does the K curve mean on this DC MCB?","answer":"The K curve has a magnetic tripping threshold of 12 x In ±20 % DC, designed for DC loads with moderate inrush such as DC power supplies and control circuits."},{"question":"What compliance documentation does this brand provide for MGN61861?","answer":"The breaker conforms to EN/IEC 60947-2, with IP20/IP40 protection, pollution degree 3, and tropicalisation class 2 per IEC 60068-2. It is suitable for isolation per the same standard."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/MGN61861","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/MGN61861 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}}