{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6350-6BB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6350-6BB","canonicalUrl":"https://aoctrl.com/siemens/5SL6350-6BB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6350-6BB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6 series, 5SL6350-6BB miniature circuit breaker, 3-pole, B-curve, 50 A rated at 400 V AC, 6 kA breaking capacity.","salesMarkdown":"The Siemens 5SL6350-6BB is a SENTRON 5SL6 miniature circuit breaker — 3-pole, B-curve, rated 50 A at 400 V AC. B-curve means it trips between 3 and 5 times rated current — 150–250 A for this 50 A unit. That's tight enough to protect lighting and general-purpose socket circuits but won't nuisance-trip on motor inrush the way a C-curve might. Three poles, no switched neutral — the 3P designation means it opens all three phases together but leaves the neutral solid. That's standard for a 400 V three-phase distribution board where the neutral is bonded at the main switch. The 10 000 mechanical switching cycles are typical for this class; you won't wear it out on normal switching duty. Snap-on DIN rail mount, 3 width units (54 mm wide per the 18 mm/module standard). Height 90 mm. Mounting position any, so it can lie sideways in a tight gland-plate area if you're out of vertical rail. Degree of pollution 2, overvoltage category III — standard for a fixed-installation distribution board. Ambient range -40 to 75 °C, with periodic 55 °C at 95% humidity. The Italy-spec variant means it ships with the standard Italian distribution-board approvals; the sealable toggle feature lets the utility lock the setting.","metaTitle":"Siemens 5SL6350-6BB SENTRON MCB, 3P B-curve 50 A 6 kA","metaDescription":"Siemens 5SL6350-6BB SENTRON miniature circuit breaker, 3-pole, B-curve, 50 A, 400 V AC, 6 kA breaking capacity per EN 60898. Current lifecycle stage, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"54 mm","title":"5SL6350-6BB","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Rated Value":"50 Hz","description":"Miniature circuit breaker 400 V 6kA, 3-pole B, 50 A Version Italy","Number Of Poles":"3","Type Of Voltage":"AC","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":"3","Design of the product":"5SL miniature circuit breakers","Energy limiting class":"3","Number Of Width Units":"3","Number of poles / Note":"3P","circuit-breaker / Design":"5SL6","Suitability for operation":"Residential buildings/infrastructure","Product feature / sealable":"Yes","Tripping characteristic class":"B","at DC / rated value / maximum":"72 V","Product Feature / Halogen-Free":"Yes","Product Feature / Silicon-Free":"Yes","acc. to EN 60898 / rated value":"6 kA","acc. to IEC 60947-2 / rated value":"6 kA","Product feature / Touch protection":"Yes","Supply voltage / at AC / rated value":"400 V","Operating current / at AC / rated value":"50 A","Reference code / acc. to DIN EN 81346-2":"F","reference code / acc. to DIN EN 61346-2":"F","Influence Of The Surrounding Temperature":"Periodically +55°C, max. 95% humidity","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","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/d86718d0197d9d82c971bf327cc9517e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=526031&mlfb=5SL6350-6BB"},"ai":{"faq":[{"question":"Where can I buy 5SL6350-6BB and what's the lead time?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the depth of 5SL6350-6BB?","answer":"Depth is 76 mm; installation depth behind the panel face is 70 mm."},{"question":"What is the width of 5SL6350-6BB?","answer":"Width is 54 mm, which is 3 standard DIN-rail width units at 18 mm per module."},{"question":"Will 5SL6350-6BB drop into a panel specified for 5SL6132-6MB without rewiring?","answer":"No — 5SL6132-6MB is a 32 A single-pole unit with a different footprint and terminal arrangement. The 5SL6350-6BB is a 3-pole 50 A breaker; the panel busbar and cable sizing would need to match the higher current and pole count."},{"question":"What compliance documentation does Siemens provide for 5SL6350-6BB?","answer":"The part carries EN 60898 and IEC 60947-2 ratings for breaking capacity. It is halogen-free and silicon-free. Specific RoHS/REACH/UL declarations are available from the manufacturer on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6350-6BB","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/5SL6350-6BB 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}}