{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY7504-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY7504-8","canonicalUrl":"https://aoctrl.com/siemens/5SY7504-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SY7504-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY7 series, miniature circuit breaker, order code 5SY7504-8, D tripping characteristic, 4 A rated current, 2-pole (1P+N), 15 kA breaking capacity per EN 60898, 40 kA per IEC 60947-2, 36 mm width, 76 mm depth.","salesMarkdown":"The Siemens 5SY7504-8 is a SENTRON miniature circuit breaker from the 5SY7 series, designed for branch-circuit protection in industrial control panels. It carries a D tripping characteristic — meaning it tolerates the high inrush currents typical of motor and transformer loads before tripping — and is rated 4 A at 230 V AC. The 2-pole (1P+N) configuration switches both phase and neutral, with the neutral pole switching confirmed by the product function. ## Breaking capacity and selectivity The 5SY7504-8 is rated 15 kA per EN 60898 and 40 kA per IEC 60947-2 — the higher figure under the industrial standard gives headroom for high-fault installations. For UL 1077 / CSA C22.2 No. 235 the rating is 5 kA, which governs North American panel acceptance. The 40 kA SCCR under IEC 60947-2 means this breaker can safely interrupt faults up to that level without cascading upstream, a key figure for selectivity studies in a distribution board. ## Mounting and panel integration Snap-on mounting to DIN rail via the quick assembly system; any mounting position is permitted. The 36 mm width occupies 2 width units on the rail. Installation depth is 70 mm; overall depth with terminals is 76 mm. The combined top and bottom terminals accept wiring from either direction, and the neutral conductor is switched internally — no separate neutral bar needed for the switched pole. IP20 with connected conductors, pollution degree 3, overvoltage category III. ## Environmental and material specs Rated for ambient temperatures from -40 °C to 75 °C, with humidity influence capped at 95% up to 55 °C, derating to 35% at 75 °C. Halogen-free and silicon-free construction. Sealable for tamper-evident installations. Touch protection is built in.","metaTitle":"Siemens 5SY7504-8 SENTRON MCB, D-curve, 4A, 2-pole, 15kA","metaDescription":"Siemens 5SY7504-8 SENTRON miniature circuit breaker, 4A rated, D tripping characteristic, 2-pole (1P+N), 15kA breaking capacity per EN 60898, 40kA per IEC 60947-2. Active productio","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Rated Value":"50/60 Hz","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting type":"Quick assembly system","Number of poles":"2","Type of voltage":"AC","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":"230 V","Overvoltage category":"III","Combined Terminal Top":"Yes","Number of width units":"2","Number of poles / Note":"1P+N","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Combined Terminal Bottom":"Yes","circuit-breaker / Design":"5SY7","Suitability for operation":"Mechanical engineering / industry","Tripping characteristic class":"D","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"15 kA","Position / of power supply cord":"Any","acc. to IEC 60947-2 / rated value":"40 kA","Product feature / Touch protection":"Yes","Operating current / at AC / rated value":"4 A","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","at AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","Product function / neutral conductor switching":"Yes","with single-phase operation / at AC / rated value":"250 V","Mechanical service life (switching cycles) / typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=126045&mlfb=5SY7504-8","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY7504-8/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY7504-8","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/5SY7504-8 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}}