{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SJ6432-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SJ6432-6","canonicalUrl":"https://aoctrl.com/siemens/5SJ6432-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SJ6432-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SJ6 miniature circuit breaker, 4-pole, B-curve, 32 A, 6 kA breaking capacity at 400 V AC, 70 mm installation depth.","salesMarkdown":"## Siemens 5SJ6432-6 SENTRON MCB — 4-pole B-curve at 32 A The Siemens 5SJ6432-6 is a 4-pole SENTRON 5SJ6 miniature circuit breaker rated 32 A at 400 V AC with a B-curve tripping characteristic and 6 kA breaking capacity per EN 60898 and IEC 60947-2. Four poles let it switch three-phase plus neutral in a single module, saving a width unit compared to separate single-pole breakers. The insulation voltage is rated 440 V AC, giving headroom on 400 V nominal systems. Energy limiting class 3 means it restricts let-through energy well, protecting downstream wiring and loads during a fault. Rated for 50 Hz AC/DC operation, with a maximum DC voltage of 60 V — usable on DC control circuits up to that level, though the DC breaking capacity is not separately stated. The B-curve is not ideal for motor starting or transformer inrush; that calls for a C or D curve. For a 32 A resistive load on a 400 V three-phase supply, this is the right call. ## Temperature range and environmental fit Operating ambient is derated from the -20 °C to +45 °C typical for the 5SJ6 family, with periodic exposure to +55 °C and 95% humidity. Vibration resistance tested to 50 m/s² at 25 to 150 Hz and 60 m/s² at 10 to 150 Hz per IEC 60068-2-6, so it holds up on machinery or in mobile equipment. Snap-on mounting to DIN rail EN 60715, any position. The 4-pole design occupies 4 width units (about 72 mm at 18 mm per pole). Touch protection is built in — finger-safe terminals with connected conductors. Sealable with a lead seal for tamper-proof installations.","metaTitle":"Siemens 5SJ6432-6 SENTRON MCB, 4-Pole, B-Curve, 32 A, 6 kA","metaDescription":"Siemens 5SJ6432-6 SENTRON miniature circuit breaker, 4-pole, B-curve, 32 A, 6 kA breaking capacity at 400 V AC. Current lifecycle. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Rated Value":"50 Hz","Halogen-Free":"Yes","Silicon-Free":"Yes","Number of poles":"4","Type of voltage":"AC/DC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Product designation":"Miniature circuit breakers","Protection class IP":"IP20, with connected conductors","Overvoltage category":"3","Design of the product":"Miniature circuit breaker 5SJ6","Energy limiting class":"3","Number of width units":"4","Number of poles / Note":"4","circuit-breaker / Design":"5SJ6","Current / at AC / rated value":"32 A","Tripping characteristic class":"B","at DC / rated value / maximum":"60 V","acc. to EN 60898 / rated value":"6 kA","Position / of power supply cord":"Any","acc. to IEC 60947-2 / rated value":"6 kA","Product feature / Touch protection":"Yes","Supply voltage / at AC / rated value":"400 V","Influence of the surrounding temperature":"Periodically +55°C, max. 95% humidity","Insulation voltage / at AC / rated value":"440 V","Vibration resistance / acc. to IEC 60068-2-6":"50m/s² at 25 to 150Hz and 60m/s² at 10 to 150 Hz","with multi-phase operation / at AC / maximum":"440 V","Mechanical service life (switching cycles) / typical":"20 000"}},"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=349693&mlfb=5SJ6432-6","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SJ6432-6/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SJ6432-6 and how do I get a price?","answer":"The 5SJ6432-6 is 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 price and lead time."},{"question":"Will 5SJ6432-6 drop into a panel specified around 5SJ6463-7 without rewiring?","answer":"Yes — both are 4-pole SENTRON 5SJ6 breakers with the same 70 mm installation depth, same 6 kA breaking capacity, same 400 V AC rating, and same DIN-rail mounting. The 5SJ6463-7 is a 63 A C-curve; the 5SJ6432-6 is 32 A B-curve. They share the same footprint and terminal layout, so swapping requires no panel rework — only a coordination check on the load's inrush characteristic."},{"question":"What is 5SJ6432-6's temperature range?","answer":"Storage temperature ranges from -40 °C to +75 °C. Operating ambient is -20 °C to +45 °C typical, with periodic exposure to +55 °C and 95% humidity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SJ6432-6","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/5SJ6432-6 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}}