{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY5115-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY5115-7","canonicalUrl":"https://aoctrl.com/siemens/5SY5115-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY5115-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY5 series, miniature circuit breaker (MCB), 1-pole, C tripping characteristic, 1.6 A rated current, 10 kA breaking capacity per EN 60898, 400 V AC / 220 V DC.","salesMarkdown":"## What this 1.6 A C-curve MCB is for The Siemens 5SY5115-7 is a 1-pole miniature circuit breaker from the SENTRON 5SY5 series, rated 1.6 A with a C tripping characteristic. That C-curve means it holds through inrush up to 5–10× rated current before the magnetic trip fires — sized for mixed resistive and light inductive loads like control transformers, contactor coils, or small power supplies where the startup surge is higher than a B-curve would tolerate. Rated 400 V AC and 220 V DC, with a breaking capacity of 10 kA per EN 60898 and 15 kA per IEC 60947-2 at DC. That 15 kA DC rating matters if you're protecting a DC bus or battery-backed circuit — most 1-MW MCBs stop at 10 kA DC. Mounting position any, so it works horizontally in a shallow enclosure as long as the conductors don't block the vent path. Installation depth 70 mm leaves 6 mm behind the rail for wiring. Top and bottom combined terminals accept the same wire gauge, which speeds up panel wiring when you're running a common bus bar through the bottom. Touch protection built into the terminals. Ambient range -40 °C to 75 °C, with humidity derating above 55 °C: max 95% RH at 55 °C, dropping to 35% at 75 °C. That covers most non-condensing industrial enclosures.","metaTitle":"Siemens 5SY5115-7 SENTRON MCB, 1P C 1.6 A, 10 kA","metaDescription":"Siemens 5SY5115-7 SENTRON miniature circuit breaker, 1-pole, C-curve, 1.6 A, 10 kA breaking capacity per EN 60898. Active production, sourced to order. RFQ for current pricing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"18 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Rated Value":"50/60 Hz","Mounting type":"Quick assembly system","Number Of Poles":"1","Type Of Voltage":"AC/DC","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree of pollution":"3","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","at AC / rated value":"400 V","at DC / rated value":"220 V","Overvoltage Category":"III","Combined Terminal Top":"Yes","Energy limiting class":"3","Number Of Width Units":"1","Number of poles / Note":"1P","Combined Terminal Bottom":"Yes","circuit-breaker / Design":"5SY5","Suitability for operation":"universal current","Product feature / sealable":"Yes","at DC / acc. to EN 60898-2":"10 kA","Tripping characteristic class":"C","at DC / rated value / maximum":"250 V","Product Feature / Halogen-Free":"Yes","Product Feature / Silicon-Free":"Yes","acc. to EN 60898 / rated value":"10 kA","Position / of power supply cord":"AC as required, observe DC polarity","Product feature / Touch protection":"Yes","Operating current / at AC / rated value":"1.6 A","Reference code / acc. to DIN EN 81346-2":"F","reference code / acc. to DIN EN 61346-2":"F","Influence Of The Surrounding Temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","at DC / acc. to IEC 60947-2 / rated value":"15 kA","Product function / neutral conductor switching":"No","with multi-phase operation / at AC / rated value":"440 V","with single-phase operation / at AC / rated value":"440 V","Mechanical service life (switching cycles) / typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/23b4ed082cef65e7b9e968edec6fe457.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=515656&mlfb=5SY5115-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY5115-7/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY5115-7?","answer":"10 kA per EN 60898 at 400 V AC, and 15 kA per IEC 60947-2 at DC. The higher DC rating is unusual for a 1-MW C-curve breaker this size."},{"question":"Will 5SY5115-7 drop into a panel built for 5SY5240-7?","answer":"Physically yes — same 18 mm width, same DIN-rail mount, same terminal layout. The difference is rating: 5SY5240-7 is a 40 A C-curve, while this is 1.6 A. No rewiring needed for the footprint, but the circuit protection values are completely different."},{"question":"Where can I buy 5SY5115-7?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price is published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY5115-7","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/5SY5115-7 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}}