{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6302-7MB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6302-7MB","canonicalUrl":"https://aoctrl.com/siemens/5SL6302-7MB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6302-7MB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6302-7MB miniature circuit breaker, 3-pole, C-curve, 2 A rated current, 6 kA breaking capacity at 400 V AC, 3 modular width units.","salesMarkdown":"## What this MCB is and what the ratings mean The Siemens 5SL6302-7MB is a SENTRON miniature circuit breaker — a 3-pole, C-curve unit rated 2 A with a 6 kA breaking capacity per EN 60898 at 400 V AC. The C-curve means it trips between 5 and 10 times rated current, so it handles moderate inrush from small motor loads or transformer banks without nuisance tripping, while still clearing a hard short fast enough to protect the downstream cable. The 6 kA rating at 400 V tells you the maximum prospective fault current it can safely interrupt; for residential and light commercial distribution boards where the supply transformer limits fault current to that level, this MCB is sized correctly. It occupies 3 modular width units (54 mm) on a DIN rail, with an installation depth of 70 mm behind the panel face. ## Physical fit and panel integration Snaps onto standard 35 mm DIN rail in any mounting position. The 54 mm width (3 MW) and 76 mm depth leave enough clearance for adjacent breakers and busbar feeders in a typical SENTRON distribution board. IP20 with connected conductors — fine inside a closed panel, not for wet environments. Sealable design allows the installer to lock the toggle position after commissioning, which keeps unauthorized hands off a critical lighting or safety circuit. ## Environmental and compliance notes Halogen-free and silicon-free construction — relevant for semiconductor fabs or clean-room panels where outgassing contaminates processes. Rated for ambient temperatures from -40 °C to +75 °C, so it holds calibration in unheated electrical rooms or outdoor enclosures. Pollution degree 2 and overvoltage category III, which is standard for fixed-installation distribution boards.","metaTitle":"Siemens 5SL6302-7MB SENTRON MCB, 3P C 2A 6kA 400V","metaDescription":"Siemens 5SL6302-7MB SENTRON miniature circuit breaker, 3-pole, C-curve, 2A, 6kA breaking capacity at 400V AC. Active production, sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"54 mm","title":"5SL6302-7MB","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 6kA, 3-pole, C, 2A","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","at DC rated value maximum":"72 V","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","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","with single-phase operation at AC rated value":"250 V","vibration resistance according to IEC 60068-2-6":"no","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":"1.25 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"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=24906&mlfb=5SL6302-7MB"},"ai":{"faq":[{"question":"Where can I buy 5SL6302-7MB and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price is published here."},{"question":"What is the closest functional alternative to 5SL6302-7MB?","answer":"The 5SL4363-7 is a near-identical sibling in the same SENTRON family: same 3-pole, C-curve, 400 V AC rating, same 76×54×90 mm footprint and 3 MW width. The key difference is breaking capacity — 5SL4363-7 is rated 10 kA per EN 60898 and IEC 60947-2, versus 6 kA for the 5SL6302-7MB. If your panel's prospective fault current exceeds 6 kA, the 5SL4363-7 is the drop-in upgrade without rewiring."},{"question":"Will 5SL6302-7MB drop into a panel specified for 5SL4363-7?","answer":"Yes, the two share the same physical dimensions (76 mm depth, 54 mm width, 90 mm height), same 3 MW DIN-rail footprint, same mounting position flexibility, and same terminal layout. No rewiring or busbar modification is needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6302-7MB","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/5SL6302-7MB 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}}