{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4440-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4440-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SL4440-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4440-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL4440-7CC, 4-pole miniature circuit breaker, C-curve, 40 A, 400 V AC, 10 kA breaking capacity per EN 60898, 4 MW units.","salesMarkdown":"The Siemens SENTRON 5SL4440-7CC is a 4-pole miniature circuit breaker rated 40 A with a C tripping characteristic, designed for 400 V AC systems and a 10 kA breaking capacity per EN 60898. It occupies 4 modular width units (72 mm) on a DIN rail, making it a direct fit for residential and infrastructure distribution boards where a 4-pole C-curve MCB at this rating is specified. The C-curve trips between 5 and 10 times rated current (200–400 A magnetic release), which suits moderate inrush loads like lighting banks, small transformers, and motor starters in residential or light commercial panels. The 10 kA breaking capacity at 400 V AC (per EN 60898) means it safely clears a fault up to that prospective short-circuit current without welding contacts or cascading failure upstream — adequate for most final subcircuits in buildings where the fault level at the board is below 10 kA. Depth is 76 mm, installation depth 70 mm; the 72 mm width (4 MW units) means it occupies four 18 mm slots in a distribution board. The terminals accept the usual copper conductors for a 40 A circuit; sealable covers are available for tamper-proofing.","metaTitle":"Siemens 5SL4440-7CC SENTRON MCB, 4P C 40A 400V 10kA","metaDescription":"Siemens SENTRON 5SL4440-7CC miniature circuit breaker, 4-pole, C-curve, 40 A, 400 V AC, 10 kA breaking capacity per EN 60898. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"72 mm","title":"5SL4440-7CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 10kA, 4-pole, C, 40 A Circuit breaker 400 V 10kA, 4-pole, C, 40 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"4P","Number Of Poles":"4","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Product Designation":"Miniature circuit breaker","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Energy Limitation Class":"3","Suitability For Operation":"Residential buildings/infrastructure","at DC rated value maximum":"72 V","Number Of Modular Width Units":"4","Tripping Characteristic Class":"C","supply voltage at AC rated value":"400 V","according to EN 60898 rated value":"10 kA","Type Of Voltage Of The Operating Voltage":"AC","with multi-phase operation at AC maximum":"440 V","Value Range Of The Supply Voltage Frequency":"50/60 Hz","with multi-phase operation at AC rated value":"440 V","vibration resistance according to IEC 60068-2-6":"50 m/s² at 25 to 150 Hz","Product Extension Installable Supplementary Devices":"Yes","power loss [W] for rated value of the current at AC in hot operating state per pole":"3.3 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/718e46e478838c226725521b54130449.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=19153&mlfb=5SL4440-7CC"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SL4440-7CC?","answer":"10 kA at 400 V AC per EN 60898. This is the rated short-circuit breaking capacity for the C-curve 40 A 4-pole variant."},{"question":"Where can I buy 5SL4440-7CC?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"Will 5SL4440-7CC drop into a panel specified around 5SL4363-7?","answer":"The 5SL4363-7 is a 3-pole 63 A C-curve MCB in the same SENTRON family, sharing the same 76 mm depth, 90 mm height, and DIN-rail mounting. The 5SL4440-7CC is 4-pole and 72 mm wide (4 MW) versus 54 mm (3 MW) for the 3-pole version, so it needs one additional modular width of DIN-rail space. Wiring differs because the 4-pole unit switches neutral; otherwise the panel cutout and enclosure depth are compatible."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4440-7CC","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/5SL4440-7CC 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}}