{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4601-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4601-8","canonicalUrl":"https://aoctrl.com/siemens/5SY4601-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4601-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4601-8 miniature circuit breaker, D characteristic, 3P+N poles, 400 V AC, 10 kA (EN 60898-1) / 35 kA (IEC 60947-2), 4 MW units, IP20.","salesMarkdown":"That D curve means it tolerates the inrush of motor starters, transformers, or welding equipment — magnetic trip threshold is 10–20× rated current, so nuisance trips on high-inductive loads stay off the board. Ambient range -40 to 75 °C, with humidity derating above 55 °C: 95% RH up to 55 °C, 55% up to 70 °C, 35% up to 75 °C. Vibration resistance per IEC 60068-2-6 at ±1 mm / 5–25 Hz and 50 m/s² / 25–150 Hz. The 5SY4601-8 carries three breaking-capacity ratings under separate standards: 10 kA per EN 60898-1 (the MCB standard for household and similar installations), 35 kA per IEC 60947-2 (the industrial circuit-breaker standard), and 5 kA per UL 1077 / CSA C22.2 No.235. The D characteristic (10–20× In magnetic trip) is the right choice for motor branch circuits, welding receptacles, or any load with a high inrush-to-running ratio. Four modular-width units (72 mm) on DIN rail. Neutral conductor is switched internally — no separate neutral bar required for the outgoing circuit. Sealable to prevent tamper. Halogen-free and silicon-free construction, suitable for clean-room or food-beverage panel environments where outgassing must be controlled. Suitability flagged for mechanical engineering and industry.","metaTitle":"Siemens 5SY4601-8 SENTRON MCB, D Curve, 3P+N, 10 kA","metaDescription":"Siemens 5SY4601-8 SENTRON miniature circuit breaker, D tripping characteristic, 3P+N, 400 V AC, 10 kA per EN 60898-1. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"72 mm","title":"5SY4601-8","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 10kA, 3+N-pole, D, 1 A, D=70 mm","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P+N","Number Of Poles":"4","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","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Neutral Conductor Switching":"Yes","Number Of Modular Width Units":"4","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"D","according to EN 60898 rated value":"10 kA","according to IEC 60947-2 rated value":"35 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":"1.1 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d14a461ae3729583b39b2022c8edc91a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=343752&mlfb=5SY4601-8"},"ai":{"faq":[{"question":"Where can I buy 5SY4601-8 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 — submit an RFQ for a firm lead-time and price."},{"question":"What is the difference between 5SY4601-8 and 5SY4304-7CV?","answer":"The 5SY4304-7CV is a 4-pole C-curve MCB (magnetic trip 5–10× In), while the 5SY4601-8 is a 3P+N D-curve (10–20× In). The D curve is specified for motor and transformer loads with higher inrush. Both are 4-module SENTRON units on the same DIN-rail footprint, so mechanical fit is identical — the decision is the trip characteristic and neutral switching (5SY4601-8 switches neutral; check if 5SY4304-7CV does)."},{"question":"What compliance documentation does Siemens provide for 5SY4601-8?","answer":"The MCB is certified to IEC/EN 60898-1, IEC/EN 60947-2, and UL 1077 / CSA C22.2 No.235. It is halogen-free and silicon-free. Standard RoHS and REACH declarations are available from Siemens on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4601-8","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/5SY4601-8 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}}