{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY8332-8BB08","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY8332-8BB08","canonicalUrl":"https://aoctrl.com/siemens/5SY8332-8BB08","factsUrl":"https://aoctrl.com/api/mcp/products/5SY8332-8BB08","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY8332-8BB08, 3-pole miniature circuit breaker, 32 A rated, D tripping characteristic, 400 V AC, 30 kA IEC 60947-2 breaking capacity, magnetic-only trip, IP20.","salesMarkdown":"The D curve holds through 10–20× rated current before instantaneously opening, so it clears only hard faults, not the normal start-up surge. Rated 30 kA per IEC 60947-2 and 5 kA per UL 1077 / CSA C22.2 No. 235. The 5 kA UL rating reflects the lower interrupting duty typical of North American supplementary protector applications. Overvoltage category III confirms it is rated for fixed-installation distribution boards, not just branch circuits. Screw terminals tighten to 2.5–3.5 N·m; combined terminal top and bottom means the line and load conductors enter from either end, simplifying busbar routing. The manufacturer lists this part as current-production — no NRND or phase-out notice on record. For a BOM freeze or line-down replacement, this is a straightforward active-order-code procurement, not a last-time-buy or surplus hunt. The sealable design allows lockout/tagout in safety circuits. Touch-protected terminals reduce arc-flash exposure during troubleshooting. The part carries the SENTRON brand and is classified per DIN EN 61346-2 as function F (protective device).","metaTitle":"Siemens 5SY8332-8BB08 SENTRON MCB, 32 A, 3P, D Curve, 30 kA","metaDescription":"Siemens SENTRON 5SY8332-8BB08 miniature circuit breaker, 32 A, 400 V AC, 3-pole, D tripping characteristic, 30 kA IEC breaking capacity, magnetic-only trip. Sourced to order agains","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Solid":"0.75 ... 35 mm²","Width":"54 mm","title":"5SY8332-8BB08","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 35 mm²","Rated Value":"50/60 Hz","description":"Miniature circuit breaker 400 V 25kA, 3-pole, 32 A, D=70 mm only magnetic tripping","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting type":"Quick assembly system","During Storage":"-40 ... +75 °C","Number of poles":"3","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-25 ... +45 °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","Design of the product":"Only magnetic tripping operation","Number of width units":"3","Number of poles / Note":"3P","acc. to DIN EN 61346-2":"F","Combined Terminal Bottom":"Yes","Suitability for operation":"Mechanical engineering / industry","Current / at AC / rated value":"32 A","Tripping characteristic class":"D","at DC / rated value / maximum":"72 V","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 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":"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","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/eeb322d307714486e542cd17ba93040b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=324344&mlfb=5SY8332-8BB08"},"ai":{"faq":[{"question":"What wire sizes does 5SY8332-8BB08 accept?","answer":"Solid or stranded conductors from 0.75 mm² up to 35 mm²."},{"question":"Will 5SY8332-8BB08 drop into a panel wired for 5SY7140-8CC?","answer":"Both are 3-pole SENTRON MCBs on the same DIN-rail footprint, but the 5SY8332-8BB08 is a 32 A D-curve magnetic-only breaker, while the 5SY7140-8CC is a different rating and characteristic. Check the panel schedule — if the existing wiring and busbar are sized for 32 A and the load demands a D curve, it is a direct mechanical fit; otherwise the protection coordination changes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY8332-8BB08","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/5SY8332-8BB08 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}}