{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6301-8CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6301-8CC","canonicalUrl":"https://aoctrl.com/siemens/5SY6301-8CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6301-8CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6301-8CC miniature circuit breaker, 3-pole, D tripping characteristic, 1 A rated current, 6 kA breaking capacity per EN 60898, 400 V AC, 3 modular width units.","salesMarkdown":"## What this MCB is and where it lands The Siemens SENTRON 5SY6301-8CC is a 3-pole miniature circuit breaker with a D tripping characteristic, rated 1 A at 400 V AC and a 6 kA breaking capacity per EN 60898. It occupies 3 modular width units (54 mm) on a DIN rail, mounts in any position, and is designed for mechanical engineering and industrial panel applications where high inrush currents — typical of motor starters, transformers, or discharge lighting — must not cause nuisance tripping. ## D-curve and breaking capacity — what they mean for your panel The D characteristic (10–20× In magnetic trip) means this 1 A breaker holds through the magnetizing inrush of a small control transformer or a 0.25 kW motor start without dropping out — that is the whole point of D-curve in a 1 A frame. The 6 kA breaking capacity at 400 V AC per EN 60898 certifies it can safely interrupt a fault current up to that level; under UL 1077 and CSA C22.2 No.235 it carries a 5 kA interrupting rating. Pollution degree 3 and overvoltage category III suit it for fixed industrial installations where transient overvoltages and conductive dust are expected. ## Panel fit and environmental limits Depth is 76 mm (installation depth 70 mm), width 54 mm (3 MW), height 90 mm. Fastens via the quick assembly system — snap-on to DIN rail, no tools needed. IP20 with connected conductors, so it belongs inside a closed panel, not in a washdown zone. Ambient range from -40 °C to 75 °C, with derating above 55 °C: max 95% RH at 55 °C, tapering to 35% RH at 75 °C. Halogen-free and silicon-free construction matters for sensitive environments like semiconductor fabs or clean rooms where outgassing contaminates processes. ## Termination and supplementary devices Combined terminals at top and bottom accept both copper busbar and conductor — no need to choose one or the other. The design accepts installable supplementary devices (auxiliary switches, shunt trips, alarm contacts) without removing the breaker from the rail. No neutral conductor switching on this 3-pole unit; it switches the three phases only. Power loss is 1 W per pole at rated current in hot operating state — negligible for thermal budgeting inside a crowded enclosure.","metaTitle":"Siemens 5SY6301-8CC SENTRON MCB, 3-pole D 1A 6kA","metaDescription":"Siemens SENTRON 5SY6301-8CC miniature circuit breaker, 3-pole, D-curve, 1 A, 6 kA per EN 60898, 400 V AC. Active production. Quoted 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":"5SY6301-8CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 6kA, 3-pole, D, 1A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P","Number Of Poles":"3","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","at AC rated value":"400 V","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Neutral Conductor Switching":"No","Number Of Modular Width Units":"3","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"D","according to EN 60898 rated value":"6 kA","Influence Of The Surrounding Temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","Type Of Voltage Of The Operating Voltage":"AC","Value Range Of The Supply Voltage Frequency":"50/60 Hz","operating voltage at DC rated value maximum":"72 V","with multi-phase operation at AC rated value":"440 V","with single-phase operation at AC rated value":"440 V","at AC according to UL 1077 and CSA C22.2 No.235":"5 kA","vibration resistance according to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","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 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b64c2df06c4e5ada4dc9c8e32946055e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=494973&mlfb=5SY6301-8CC"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY6301-8CC?","answer":"6 kA per EN 60898 at 400 V AC, and 5 kA per UL 1077 and CSA C22.2 No.235."},{"question":"Will 5SY6301-8CC drop into a panel specified around 5SY4310-7CV?","answer":"Both are 3-pole SENTRON MCBs on the same DIN-rail footprint, so mechanical fit is identical. The difference is the tripping characteristic and current rating — verify the D-curve and 1 A rating match your branch circuit protection requirements before swapping."},{"question":"What compliance documentation does Siemens provide for 5SY6301-8CC?","answer":"The part carries ratings per EN 60898, UL 1077, and CSA C22.2 No.235. It is halogen-free and silicon-free, which supports RoHS and REACH compliance. Standard Siemens declaration of conformity and material declarations are available upon request."},{"question":"Where can I buy 5SY6301-8CC and how is it quoted?","answer":"Sourced and quoted to order through independent distribution. Submit an RFQ for current availability and pricing — no minimum commitment required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6301-8CC","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/5SY6301-8CC 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}}