{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY7306-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY7306-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SY7306-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY7306-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY7306-7CC, 3-pole miniature circuit breaker, C-curve, 6 A rated at 35 °C, 30 kA breaking capacity per IEC 60947-2, 3 MW, IP20.","salesMarkdown":"## What it is and what it does The Siemens 5SY7306-7CC is a SENTRON miniature circuit breaker (MCB) with a C tripping characteristic, 3 poles, and a rated current of 6 A at 35 °C. It protects branch circuits against overload and short circuit in final distribution boards and industrial control panels. The C-curve means it trips between 5 and 10 times rated current — suited for circuits with moderate inrush, like motor starters or small transformers. ## Key ratings and what they mean for fit Breaking capacity is 30 kA according to IEC 60947-2 — that's the maximum fault current it can safely interrupt at 440 V AC multi-phase without welding contacts or rupturing. For a panel with a high available fault current, this MCB holds its own without needing a current-limiting upstream device. Rated current derates with ambient temperature: 6 A at 35 °C, 5.67 A at 40 °C, 5.5 A at 45 °C, 5.32 A at 50 °C, and 5.13 A at 55 °C. If the panel runs hot, size the load to the derated figure, not the 35 °C number. Pollution degree 3 and overvoltage category III mean it's rated for the industrial environment — conductive pollution or dry non-conductive pollution that becomes conductive due to condensation is expected. That's typical for control cabinets near machinery. ## Mounting and integration Snaps onto DIN rail via the quick assembly system. Occupies 3 modular width units (54 mm) and installs at any mounting position. Combined terminals top and bottom accept both cable and busbar — no separate feed-through lug needed. Installation depth is 70 mm; overall depth is 76 mm.","metaTitle":"Siemens 5SY7306-7CC SENTRON MCB, 3P C-6A, 30kA IEC","metaDescription":"Siemens 5SY7306-7CC SENTRON miniature circuit breaker, 3-pole, C-curve, 6 A at 35 °C, 30 kA breaking capacity per IEC 60947-2. Active production, sourced to order. Request quote.","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":"5SY7306-7CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 15kA, 3-pole, C, 6A","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":"6 A","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","at 35 °C rated value":"6 A","at 40 °C rated value":"5.67 A","at 45 °C rated value":"5.5 A","at 50 °C rated value":"5.32 A","at 55 °C rated value":"5.13 A","according to EN 61346-2":"F","Combined Terminal Bottom":"Yes","according to IEC 81346-2":"F","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":"C","according to IEC 60947-2 rated value":"30 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":"1.5 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e350ed7fc1513ee410d68b445a002278.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=320154&mlfb=5SY7306-7CC"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY7306-7CC?","answer":"30 kA according to IEC 60947-2 at 440 V AC multi-phase. That's the maximum fault current it can safely interrupt."},{"question":"How do I get pricing and availability for 5SY7306-7CC?","answer":"Submit an RFQ through this listing. The part is sourced to order via independent distribution; current pricing and stock are confirmed at quote time."},{"question":"What is the C-curve trip range for this MCB?","answer":"The C characteristic trips between 5 and 10 times rated current. For the 6 A rating, that's 30 A to 60 A magnetic trip."},{"question":"What compliance documentation does Siemens provide for 5SY7306-7CC?","answer":"The part carries IEC 60947-2 certification. It is halogen-free and silicon-free. RoHS/REACH declarations are standard with Siemens SENTRON products; contact your Siemens channel for the specific declaration of conformity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY7306-7CC","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/5SY7306-7CC 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}}