{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4514-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4514-8","canonicalUrl":"https://aoctrl.com/siemens/5SL4514-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4514-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL miniature circuit breaker, 5SL4514-8, 2-pole 1P+N, 0.3 A rated current, D tripping characteristic, 10 kA breaking capacity, 230 V AC.","salesMarkdown":"The Siemens 5SL4514-8 is a SENTRON miniature circuit breaker in the 5SL4 design, rated 0.3 A at 230 V AC with a D tripping characteristic and a 10 kA breaking capacity per EN 60898 and IEC 60947-2. It's a 1P+N (2-pole) unit that switches the neutral conductor — a detail that matters when you need full isolation on a single-phase residential or light-commercial feeder. At 0.3 A it's a low-current branch protector, not a main feeder breaker. The 10 kA SCCR covers most domestic and light-industrial fault levels; the 230 V AC rating suits standard single-phase networks. ## Panel fit and wiring constraints The 5SL4514-8 occupies 2 width units (36 mm) on a DIN rail, with an installation depth of 70 mm and overall depth of 76 mm — standard for the 5SL family. Terminals accept solid or stranded copper from 0.75 to 25 mm²; tightening torque is 2.5 to 3 N·m. The sealable feature (padlockable toggle) allows lockout/tagout on the branch circuit without additional hardware.","metaTitle":"Siemens 5SL4514-8 SENTRON MCB, 2-pole 0.3 A D-curve, 10 kA","metaDescription":"Siemens 5SL4514-8 SENTRON miniature circuit breaker, 0.3 A rated, D tripping characteristic, 10 kA breaking capacity (EN 60898 / IEC 60947-2), 1P+N. Current lifecycle stage active;","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Solid":"0.75 ... 25 mm²","Width":"36 mm","title":"5SL4514-8","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 25 mm²","Rated Value":"50 Hz","description":"Miniature circuit breaker 230 V 10kA, 1+N-pole, D, 0.3A","Halogen-Free":"Yes","Silicon-Free":"Yes","During Storage":"-40 ... +75 °C","Number of poles":"2","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-25 ... +55 °C","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","Overvoltage category":"3","Design of the product":"5SL miniature circuit breakers","Energy limiting class":"3","Number of width units":"2","Number of poles / Note":"1P+N","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","circuit-breaker / Design":"5SL4","Suitability for operation":"Residential buildings/infrastructure","Current / at AC / rated value":"0.3 A","Tripping characteristic class":"D","at DC / rated value / maximum":"60 V","acc. to EN 60898 / rated value":"10 kA","acc. to IEC 60947-2 / rated value":"10 kA","Product feature / Touch protection":"Yes","Supply voltage / at AC / rated value":"230 V","Influence of the surrounding temperature":"+55 °C, max. 95% humidity","Tightening torque / with screw-type terminals":"2.5 ... 3 N·m","Product function / neutral conductor switching":"Yes","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/2b1f818a90e491367580c0983a12fa48.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=311641&mlfb=5SL4514-8"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SL4514-8?","answer":"10 kA rated value per both EN 60898 and IEC 60947-2, at 230 V AC."},{"question":"What does the D tripping characteristic mean for this 0.3 A MCB?","answer":"The D-curve allows magnetic trip at 10–20 times rated current (3–6 A), so it handles high inrush from small transformers, solenoid coils, or motor starters without nuisance tripping on startup."},{"question":"Will 5SL4514-8 drop into a panel that was specified around 5SL6563-7BB without rewiring?","answer":"No — the 5SL6563-7BB is a different pole configuration and rating. The 5SL4514-8 is 1P+N at 0.3 A D-curve; the 5SL6563-7BB is a 3-pole unit at a higher current. They share the 5SL DIN-rail footprint and terminal range, but the circuit design and load protection differ. Verify the BOM line before substituting."},{"question":"How do I get current pricing and availability for 5SL4514-8?","answer":"Submit an RFQ through the storefront. Pricing and stock are confirmed at quote time — we source through independent distribution channels and quote to order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4514-8","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/5SL4514-8 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}}