{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL3163-7MB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL3163-7MB","canonicalUrl":"https://aoctrl.com/siemens/5SL3163-7MB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL3163-7MB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL3, miniature circuit breaker (MCB), 1-pole, C tripping characteristic, 63 A rated current, 4.5 kA breaking capacity per EN 60898, 400 V AC.","salesMarkdown":"The Siemens 5SL3163-7MB is a 1-pole SENTRON miniature circuit breaker rated 63 A at 400 V AC with a C tripping characteristic and a 4.5 kA breaking capacity per EN 60898. This is an active-production part, so it's a straightforward BOM-line fill for residential and light-commercial distribution panels where you need a 63 A branch circuit protector on a single phase. The C-curve means the magnetic trip kicks in at 5 to 10 times rated current — 315 to 630 A for this 63 A unit — so it handles motor inrush and transformer energization without nuisance tripping, unlike a B-curve that would trip at 3 to 5×. That makes it the right choice for mixed loads with moderate starting currents in residential or light-commercial infrastructure panels. At 4.5 kA per EN 60898, this breaker can safely interrupt a fault current up to 4.5 kA at 400 V AC. If your panel's fault level exceeds that, you'd need the 5SY series (6 kA or 10 kA) or a current-limiting upstream device. The 18 mm width (1 width unit) means it snaps into any standard DIN-rail distribution board and occupies a single module position. Terminals accept 0.75 to 25 mm² solid or stranded copper — covers everything from a 1.5 mm² lighting circuit tail up to a 16 mm² feeder for a 63 A submain. Mounting position is any orientation, so it works in horizontal busbar arrangements or vertical DIN-rail layouts without derating.","metaTitle":"Siemens 5SL3163-7MB SENTRON MCB, 1-Pole C 63 A 4.5 kA","metaDescription":"Siemens 5SL3163-7MB SENTRON miniature circuit breaker, 1-pole, C-curve, 63 A, 4.5 kA breaking capacity per EN 60898. Active production. Quoted on request.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"18 mm","title":"5SL3163-7MB","Height":"90 mm","Maximum":"25 mm²","Minimum":"0.75 mm²","Sealable":"Yes","Rated Value":"50 Hz","description":"Miniature circuit breaker 230/400 V 4.5 kA, 1-pole, C, 63 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Number of poles":"1","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","Overvoltage category":"3","Design of the product":"5SL miniature circuit breakers","Number of width units":"1","Number of poles / Note":"1P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","circuit-breaker / Design":"5SL3","Suitability for operation":"Residential buildings/infrastructure","Current / at AC / rated value":"63 A","Tripping characteristic class":"C","acc. to EN 60898 / rated value":"4.5 kA","Product feature / Touch protection":"Yes","Supply voltage / at AC / rated value":"400 V","with multi-phase operation / at AC / maximum":"440 V","Product function / neutral conductor switching":"No","with multi-phase operation / at AC / rated value":"440 V","with single-phase operation / at AC / rated value":"250 V","Mechanical service life (switching cycles) / typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0345f9cea80292227cdcbd9c9c184909.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=183043&mlfb=5SL3163-7MB"},"ai":{"faq":[{"question":"Where can I buy the 5SL3163-7MB and get a price?","answer":"We source this part to order against an RFQ. Submit a request with your quantity and target delivery window; we'll confirm availability and current pricing at quote time through our independent distribution channels."},{"question":"Will the 5SL3163-7MB drop into a panel specified for the 5SL3120-6MB without rewiring?","answer":"Yes — same 18 mm width, same 76 mm depth, same terminal range (0.75 to 25 mm²), same DIN-rail mounting. The only differences are the current rating (63 A vs 20 A) and the trip curve (C vs B). It's a direct mechanical swap, but verify the downstream cable sizing and fault current coordination for the higher 63 A rating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL3163-7MB","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/5SL3163-7MB 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}}