{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY7306-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY7306-7","canonicalUrl":"https://aoctrl.com/siemens/5SY7306-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY7306-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY7306-7, 3-pole miniature circuit breaker, C characteristic, 15 kA (EN 60898) / 40 kA (IEC 60947-2) breaking capacity, 400 VAC, 76 mm depth, IP20.","salesMarkdown":"## Panel fit and breaking capacity — what the ratings mean The C-curve means it's designed for moderate inrush loads — typical for motor-starter, lighting, and general industrial circuits where the start-up surge is higher than a resistive load but not extreme. For DC circuits, it's rated 15 kA at 60 V (72 V max operating voltage), so it also works in DC sub-distribution or control power feeds. ## Environmental and installation notes Rated for ambient temperatures from -40 °C to 75 °C, with humidity derating above 55 °C (95% RH at 55 °C, tapering to 35% at 75 °C) — so it's suitable for unheated enclosures in cold climates or warm cabinets near other heat sources. ## Regulatory coverage Dual-certified under IEC/EN 60898-1 (household-type MCB) and IEC/EN 60947-2 (industrial circuit-breaker standard), plus UL 1077 and CSA C22.2 No. 235 for North American supplementary protection — the 5 kA UL/CSA rating is the applicable limit for those markets. Overvoltage category III (distribution-level) and energy limitation class 3 (current-limiting, fast arc extinction). Sealable terminals available for lockout/tagout compliance.","metaTitle":"Siemens SENTRON 5SY7306-7 MCB, 3P C-Char, 15/40 kA, 76 mm de","metaDescription":"Siemens SENTRON 5SY7306-7 miniature circuit breaker, 3-pole C-curve, 15 kA (EN 60898) / 40 kA (IEC 60947-2) breaking capacity, 400 VAC, 76 mm depth. Current lifecycle stage, source","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":"5SY7306-7","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60898-1, IEC / EN 60947-2 / UL1077","description":"Miniature circuit breaker 400 V 15kA, 3-pole, C, 6 A, D=70 mm","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","at DC rated value":"60 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","Energy Limitation Class":"3","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":"C","according to EN 60898 rated value":"15 kA","according to IEC 60947-2 rated value":"40 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","at DC according to IEC 60947-2 rated value":"15 kA","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","supply voltage with single-phase operation at AC rated value":"230 V","power loss [W] for rated value of the current at AC in hot operating state per pole":"1.6 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$49.53","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d9d7dab24a982e71ee1cbc6ffa65749f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=331636&mlfb=5SY7306-7"},"ai":{"faq":[{"question":"Where can I buy 5SY7306-7 and what is the lead time?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock or lead-time number can be stated here, but we can turn a quote quickly."},{"question":"Will 5SY7306-7 fit a panel designed for 5SY4140-7?","answer":"No — the 5SY4140-7 is a 1-pole unit (1 modular width, ~18 mm), while the 5SY7306-7 is 3-pole (3 modular widths, 54 mm). The depth (76 mm) and height (90 mm) are similar, but the width difference means the DIN-rail space and busbar arrangement are incompatible without re-termination."},{"question":"What compliance documentation does Siemens provide for 5SY7306-7?","answer":"The part carries IEC/EN 60898-1, IEC/EN 60947-2, UL 1077, and CSA C22.2 No. 235 certifications. It is halogen-free and silicon-free. Standard Siemens declarations for RoHS and REACH are available on request — the product is designed for global industrial markets and meets the applicable EU and North American regulatory requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY7306-7","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/5SY7306-7 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}}