{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY7313-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY7313-8","canonicalUrl":"https://aoctrl.com/siemens/5SY7313-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SY7313-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON miniature circuit breaker, 5SY7313-8, 3-pole, D-curve, 13 A, 400 V AC, breaking capacity 15 kA (EN 60898) / 25 kA (IEC 60947-2), 3 MW, halogen-free.","salesMarkdown":"This is a Siemens SENTRON 5SY7313-8 miniature circuit breaker — 3-pole, D-curve, rated 13 A at 400 V AC. It's the part you reach for when you need high inrush immunity on motor or transformer circuits, not general lighting. Rated breaking capacity sits at 15 kA per EN 60898 and 25 kA per IEC 60947-2, with a DC rating of 15 kA per IEC 60947-2. That's enough headroom for most industrial panel sub-feeders without stepping up to a larger frame. The 76 mm depth leaves room in a shallow enclosure. ## What the D-curve means on a real line The D tripping characteristic means magnetic trip occurs at 10 to 20 times rated current (In). For a 13 A breaker, that's 130 to 260 A instantaneous — so it won't nuisance-trip on motor starting or transformer inrush, but it still clears a hard short fast. If your load is mostly resistive or general-purpose with moderate inrush, a C-curve sibling (like 5SY7140-8CC) trips at 5–10× In and gives faster fault clearance. The D-curve here is the right call for drives, pumps, and compressors. For UL 1077 / CSA C22.2 No. 235 applications, the breaking capacity is 5 kA — check your panel SCCR if you're specifying for a North American job. The IEC ratings (15/25 kA) are what govern in European and most global installations. ## Integration notes Ambient operating range is -40 °C to 75 °C, but humidity derates above 55 °C: 95% RH up to 55 °C, then 55% RH up to 70 °C, then 35% RH up to 75 °C. If your panel sits in a hot, humid environment (near a washdown station or outdoor cabinet in the tropics), factor that into the thermal design. Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz.","metaTitle":"Siemens 5SY7313-8 SENTRON MCB, 3-Pole D-Curve 13 A, 15/25 kA","metaDescription":"Siemens 5SY7313-8 SENTRON miniature circuit breaker, 3-pole, D-curve, 13 A rated current, breaking capacity 15 kA (EN 60898) / 25 kA (IEC 60947-2). Halogen-free. Current lifecycle","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","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"3","Type Of Voltage":"AC","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","acc. to IEC 81346-2":"F","at AC / rated value":"400 V","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Number Of Poles / Note":"3P","acc. to DIN EN 61346-2":"F","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"3","Tripping Characteristic Class":"D","acc. to EN 60898 / rated value":"15 kA","Position / Of Power Supply Cord":"Any","acc. to IEC 60947-2 / rated value":"25 kA","Product Feature / Touch Protection":"Yes","Supply Voltage Frequency / Rated Value":"50/60 Hz","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","operational current / at AC / rated value":"13 A","at AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","vibration resistance / acc. to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","Product Function / Neutral Conductor Switching":"No","with multi-phase operation / at AC / rated value":"440 V","operating voltage / at DC / rated value / maximum":"72 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/2e7d1de8ec0abb47186bc540e4b78a47.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=44035&mlfb=5SY7313-8","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY7313-8/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SY7313-8 and how do I get a price?","answer":"The 5SY7313-8 is sourced and quoted to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time."},{"question":"What is the difference between 5SY7313-8 and 5SY7140-8CC?","answer":"The 5SY7140-8CC is a C-curve breaker (magnetic trip at 5–10× In) versus the D-curve (10–20× In) on the 5SY7313-8. For motor or transformer circuits with high inrush, the D-curve prevents nuisance trips; for general-purpose or resistive loads, the C-curve clears faults faster. Both are 3-pole, same frame size, but the 5SY7140-8CC has a higher current rating (40 A vs 13 A)."},{"question":"What compliance documentation does Siemens provide for 5SY7313-8?","answer":"The 5SY7313-8 carries IEC 60947-2 and EN 60898 ratings, UL 1077 / CSA C22.2 No. 235 listing at 5 kA, and is halogen-free and silicon-free. Standard Siemens documentation includes the declaration of conformity and material compliance data (RoHS, REACH)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY7313-8","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/5SY7313-8 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}}