{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6305-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6305-7","canonicalUrl":"https://aoctrl.com/siemens/5SL6305-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6305-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6305-7, 3-pole miniature circuit breaker, C-curve, 0.5 A, 6 kA breaking capacity per IEC/EN 60898, 400 V AC, 3 MW units.","salesMarkdown":"The Siemens 5SL6305-7 is a SENTRON miniature circuit breaker (MCB) rated 0.5 A on a C-curve, 3-pole, with a 6 kA breaking capacity per both EN 60898 and IEC 60947-2. This is the part for a 400 V AC three-phase branch circuit where the load draws half an amp — a control transformer primary, a small contactor coil supply, or a signal-conditioner feed. ## DIN-rail fit and panel integration The sealable option lets you lock the toggle position after commissioning to prevent tampering on a critical circuit. If your panel's prospective short-circuit current exceeds 6 kA, step up to the 10 kA sibling 5SL4363-7 — same footprint, same curve, same poles, but rated 10 kA. The 0.5 A rating is unusual for a 3-pole MCB; most three-phase branches are 1 A or higher. It is sized for a low-current control circuit where a standard 1 A or 2 A breaker would not provide adequate overcurrent discrimination. Mechanical endurance is 10,000 cycles typical — fine for a branch circuit that sees infrequent operation; not rated for daily switching duty. Overvoltage category III, pollution degree 2, suitable for residential and infrastructure applications per the manufacturer's suitability listing.","metaTitle":"Siemens 5SL6305-7 SENTRON MCB, 3P C 0.5A 6kA","metaDescription":"Siemens 5SL6305-7 SENTRON miniature circuit breaker, 3-pole, C-curve, 0.5 A, 6 kA per IEC/EN 60898. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"76 mm","Width":"54 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P","Number Of Poles":"3","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","Number Of Modular Width Units":"3","Tripping Characteristic Class":"C","supply voltage at AC rated value":"400 V","according to EN 60898 rated value":"6 kA","according to IEC 60947-2 rated value":"6 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","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","power loss [W] for rated value of the current at AC in hot operating state per pole":"0.9 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$19.05","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e28fb75413fb54314f53a14e2d28f4be.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=96650&mlfb=5SL6305-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL6305-7/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to the 5SL6305-7?","answer":"The 5SL4363-7 is the closest sibling: same 3-pole C-curve, same 400 V AC rating, same footprint (54 mm wide, 76 mm deep), but with a 10 kA breaking capacity instead of 6 kA. It drops into the same panel without rewiring. If your fault level is under 6 kA, the 5SL6305-7 is the correct part; if it exceeds 6 kA, the 5SL4363-7 is the direct upgrade."},{"question":"Where can I buy the 5SL6305-7?","answer":"The 5SL6305-7 is sourced and quoted to order through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time."},{"question":"What compliance documentation is available for the 5SL6305-7?","answer":"The part carries Siemens SENTRON branding and is rated per IEC/EN 60898-1 and IEC 60947-2. It is halogen-free and silicon-free. Standard manufacturer documentation includes a declaration of conformity and material compliance data (RoHS, REACH) available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6305-7","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/5SL6305-7 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}}