{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL3332-7MB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL3332-7MB","canonicalUrl":"https://aoctrl.com/siemens/5SL3332-7MB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL3332-7MB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL3332-7MB, 3-pole miniature circuit breaker, C-curve, 32 A, 400 V AC, 4.5 kA per EN 60898, 3 MW units.","salesMarkdown":"## What it is and what the ratings mean for fit The Siemens 5SL3332-7MB is a SENTRON 3-pole miniature circuit breaker (MCB) with a C-trip curve, rated 32 A at 400 V AC. The C-curve means it trips between 5 and 10 times rated current — standard for mixed resistive and moderate inductive loads like lighting banks, small motor circuits, and general distribution in residential and infrastructure panels. The 4.5 kA breaking capacity per EN 60898 tells you the maximum fault current it can safely interrupt; for a 400 V AC sub-distribution board with a service entrance SCCR above that, you'd need an upstream limiting device. The 3 MW width (54 mm) snaps onto standard DIN rail and occupies three 18 mm modular slots. ## Integration notes Mounts in any position on standard 35 mm DIN rail. IP20 with connected conductors — suitable for enclosed distribution boards, not for wet or washdown areas. The sealable design lets panel builders lock the toggle position to prevent unauthorized operation after commissioning. Halogen-free and silicon-free construction matters for environments where outgassing during a fault could damage sensitive electronics. Mechanical life is 10,000 operating cycles typical — adequate for normal switching duty, but if the breaker cycles daily under load, factor that into your maintenance interval.","metaTitle":"Siemens 5SL3332-7MB SENTRON MCB, 3P C-Curve 32A 4.5kA","metaDescription":"Siemens 5SL3332-7MB SENTRON miniature circuit breaker, 3-pole, C-curve, 32 A, 400 V AC, 4.5 kA breaking capacity per 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","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":"4.5 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":"2.5 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=176466&mlfb=5SL3332-7MB","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL3332-7MB/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of the 5SL3332-7MB?","answer":"The breaking capacity is 4.5 kA according to EN 60898 at 400 V AC. This is the maximum prospective fault current the breaker can safely interrupt under standard test conditions."},{"question":"Will the 5SL3332-7MB fit in a panel designed for the 5SL4363-7?","answer":"Yes, the 5SL3332-7MB shares the same physical dimensions — 76 mm depth, 54 mm width, 90 mm height — as the 5SL4363-7. It snaps onto the same DIN rail and occupies the same three modular width units. No rewiring or panel modification is needed for fit, but verify that the 32 A rating and 4.5 kA breaking capacity match your circuit requirements."},{"question":"Where can I buy the 5SL3332-7MB and how is it quoted?","answer":"The 5SL3332-7MB is sourced to order against an RFQ through independent industrial automation distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for your volume and delivery requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL3332-7MB","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/5SL3332-7MB 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}}