{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6606-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6606-8","canonicalUrl":"https://aoctrl.com/siemens/5SY6606-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6606-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6 miniature circuit breaker, 4-pole (3P+N), D tripping characteristic, 6 A rated current, 400 V AC, breaking capacity 6 kA (EN 60898) / 30 kA (IEC 60947-2).","salesMarkdown":"## Siemens 5SY6606-8 — SENTRON 4-pole D-curve MCB, 6 A The Siemens 5SY6606-8 is a SENTRON miniature circuit breaker in the 5SY6 design series, configured as a 4-pole unit (3P+N) with a D tripping characteristic and a 6 A rated current at 400 V AC. This is the variant you reach for when starting up motor or transformer loads that draw a brief inrush well above the running current — the D-curve holds past 10× to 20× In, so it won't nuisance-trip on the magnetizing surge of a small conveyor motor or a control transformer bank. That spread matters: if the panel is specified to the product standard for household-type MCBs, the 6 kA figure governs; if the installation is designed to the industrial standard for circuit-breakers, the 30 kA rating applies. Either way, the part carries the higher IEC 60947-2 rating for fault-current duty in an industrial control panel. At 72 mm wide (4 width units), it occupies a standard 4-module slot on a DIN rail. Mounts via the quick-assembly system — snap onto DIN rail, no tools needed for the rail clip. Terminal screws are combined top and bottom (tunnel-type), sealable for panel-lockout procedures. IP20 protection with connected conductors — standard for a DIN-rail MCB inside an enclosed panel. The touch-protection feature is built into the terminals, so accidental contact with live parts is prevented when the breaker is wired.","metaTitle":"Siemens 5SY6606-8 SENTRON MCB, 4P D-6A, 6kA/30kA","metaDescription":"Siemens 5SY6606-8 SENTRON miniature circuit breaker, 4-pole 3P+N, D-curve 6 A, 6 kA per EN 60898, 30 kA per IEC 60947-2. Active production, available to order. 72 mm wide (4 MW).","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"76 mm","Solid":"0.75 ... 35 mm²","Width":"72 mm","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 35 mm²","Rated Value":"50/60 Hz","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting type":"Quick assembly system","During Storage":"-40 ... +75 °C","Number of poles":"4","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-25 ... +55 °C","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","at AC / rated value":"400 V","Overvoltage category":"III","Combined Terminal Top":"Yes","Number of width units":"4","Number of poles / Note":"3P+N","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Combined Terminal Bottom":"Yes","circuit-breaker / Design":"5SY6","Suitability for operation":"Mechanical engineering / industry","Current / at AC / rated value":"6 A","Tripping characteristic class":"D","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"6 kA","Position / of power supply cord":"Any","acc. to IEC 60947-2 / rated value":"30 kA","Product feature / Touch protection":"Yes","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","Tightening torque / with screw-type terminals":"2.5 ... 3.5 N·m","Product function / neutral conductor switching":"Yes","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","Tightening torque [lbf·in] / with screw-type terminals":"22 ... 31 lbf·in","AWG number / as coded connectable conductor cross section":"18 ... 4"}},"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=196986&mlfb=5SY6606-8","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY6606-8/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 5SY6606-8 and get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead-time estimate."},{"question":"What is the breaking capacity of the 5SY6606-8?","answer":"Rated at 6 kA per EN 60898 and 30 kA per IEC 60947-2 at 400 V AC. The IEC rating governs for industrial panel applications."},{"question":"What conductor sizes does the 5SY6606-8 accept?","answer":"Solid and stranded conductors from 0.75 mm² up to 35 mm² fit the tunnel terminals."},{"question":"Will the 5SY6606-8 drop into a panel specified for the 5SY7140-8CC?","answer":"Both are 4-pole SENTRON MCBs in the same 72 mm (4 MW) footprint, so the mechanical fit is the same. The 5SY6606-8 is a 6 A D-curve unit; the 5SY7140-8CC is a different rating. Check the load current and trip characteristic before swapping — the rail and busbar positions are identical."},{"question":"What compliance documentation does Siemens provide for the 5SY6606-8?","answer":"The part carries CE marking for the European market. For UL/CSA compliance, the listing notes a 5 kA rating at AC per UL 1077 and CSA C22.2 No.235. RoHS and REACH declarations are standard for the SENTRON line — request the manufacturer's declaration of conformity with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6606-8","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/5SY6606-8 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}}