{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY7350-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY7350-7","canonicalUrl":"https://aoctrl.com/siemens/5SY7350-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY7350-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY7350-7, 3-pole miniature circuit breaker, C-curve, 15 kA (EN 60898) / 20 kA (IEC 60947-2), 400 V AC, IP20.","salesMarkdown":"Its C-curve tripping characteristic means it handles moderate inrush currents — typical for motor starters, contactor coils, and small transformers — without nuisance trips, while still clearing overloads and short circuits within the standard thermal-magnetic response band. For DC circuits it carries 15 kA at up to 72 V. Under UL 1077 it is rated 5 kA — relevant for North American supplementary protection applications where the breaker is not the sole branch-circuit overcurrent device. Frequency is 50/60 Hz. The part carries approvals to IEC/EN 60898-1, IEC/EN 60947-2, and UL 1077, covering the three major installation frameworks — residential, industrial, and North American supplementary protection. The 5SY7350-7 occupies 3 modular width units on a DIN rail, with a width of 54 mm, depth of 76 mm, and height of 90 mm. Installation depth is 70 mm. Degree of pollution 3 and overvoltage category III confirm suitability for fixed industrial installations where conductive pollution or transient overvoltages are expected. The breaker is sealable — a lead seal can be applied through the housing to prevent unauthorized reset after a trip, common in safety-critical or metered circuits.","metaTitle":"Siemens 5SY7350-7 SENTRON MCB, 3P C-curve, 15/20 kA","metaDescription":"Siemens 5SY7350-7 SENTRON miniature circuit breaker, 3-pole, C-curve, 15 kA (EN 60898) / 20 kA (IEC 60947-2). Current lifecycle. Sourced to order. Request a quote.","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","Standard":"IEC / EN 60898-1, IEC / EN 60947-2 / UL1077","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":"20 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":"3.8 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/9c08665ca93d6a5d5553f4352c15dd70.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=115379&mlfb=5SY7350-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY7350-7/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does the 5SY7350-7 carry?","answer":"The 5SY7350-7 is approved to IEC/EN 60898-1, IEC/EN 60947-2, and UL 1077. The housing is halogen-free and silicon-free. Standard Siemens documentation (declaration of conformity, CE, UKCA, RoHS, REACH) accompanies the part."},{"question":"What is the 5SY7350-7's depth and width for panel layout?","answer":"The 5SY7350-7 has a depth of 76 mm, width of 54 mm, and height of 90 mm. It occupies 3 modular width units on a DIN rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY7350-7","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/5SY7350-7 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}}