{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SJ4332-7HG42","brand":"Siemens","brandSlug":"siemens","productSlug":"5SJ4332-7HG42","canonicalUrl":"https://aoctrl.com/siemens/5SJ4332-7HG42","factsUrl":"https://aoctrl.com/api/mcp/products/5SJ4332-7HG42","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SJ4332-7HG42 miniature circuit breaker, C-curve, 3-pole, 400 V AC / 60 V DC, 10 kA / 15 kA breaking capacity, 3-module width, DIN rail mount.","salesMarkdown":"## C-curve trip for motor and lighting branch circuits The 5SJ4332-7HG42: The C tripping characteristic means the magnetic trip activates at 5–10× rated current — the right profile for moderate inrush loads like small motors, pumps, and fluorescent lighting banks where a B-curve would nuisance-trip on startup. For a 3-pole 400 V AC panel, this MCB clears faults at 10 kA per EN 60898 and 15 kA per IEC 60947-2. The higher IEC figure is the one that governs SCCR coordination in an industrial panel — the EN 60898 rating applies to residential/commercial distribution boards. ## Panel fit and environmental limits Snaps onto standard DIN rail in any mounting position, occupying 3 modular width units — 54 mm wide with a 70 mm installation depth. The IP20 protection class with connected conductors and IP40 in the handle range means this is a dry-panel device: no washdown tolerance, so it belongs inside a sealed enclosure on a food-and-bev line, not in the splash zone. Ambient range -40 °C to 75 °C covers both cold storage and warm cabinet environments. ## Active production — no lifecycle concern Lifecycle stage is current — this is an active-production part from Siemens' SENTRON family.","metaTitle":"Siemens 5SJ4332-7HG42 SENTRON MCB, C-curve, 3-pole, 400 V","metaDescription":"Siemens 5SJ4332-7HG42 SENTRON miniature circuit breaker, C-curve, 3-pole, 400 V AC / 60 V DC. Breaking capacity 10 kA (EN 60898) / 15 kA (IEC 60947-2).","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Depth":"70 mm","Width":"54 mm","title":"5SJ4332-7HG42","Height":"121 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Circuit breaker 10kA, 3-pole, C, 32A according to UL 489-480Y/277V","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P","Number Of Poles":"3","lifecycle_stage":"current","Fastening Method":"on standard mounting rail","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 breakers","protection class IP":"IP20, with connected conductors, IP 40 in the handle range","Overvoltage Category":"3","Tunnel Terminals Top":"No","Vibration Resistance":"50 m/s² at 25 to 150Hz and 60m/s² at 35Hz (4sec)","Combined Terminal Top":"Yes","Design Of The Product":"Miniature circuit-breaker 5SJ4","Product Function Note":"Terminal tightening torque for Cu, 60/75°C; 3.5Nm/31lb.in","Tunnel Terminals Bottom":"No","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","at DC rated value maximum":"60 V","Neutral Conductor Switching":"No","Number Of Modular Width Units":"3","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"C","according to EN 60898 rated value":"10 kA","Ambient Temperature During Operation":"max. 95% humidity","Supply Voltage Frequency Rated Value":"50 Hz","according to IEC 60947-2 rated value":"15 kA","installation environment regarding EMC":"Suitable for environment B (immunity to interference not applicable)","insulation voltage (Ui) at AC rated value":"440 V","Value Range Of The Supply Voltage Frequency":"50/60 Hz","vibration resistance according to IEC 60068-2-6":"±1 mm at 5 to 25 Hz; 50 m/s² at 25 to 150 Hz","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","Tightening Torque With Screw-Type Terminals Maximum":"3.5 N·m","power loss [W] for rated value of the current at AC in hot operating state per pole":"3.9 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$129.54 – $327.81","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f2198acf5770acce23e061b3095c88da.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=309922&mlfb=5SJ4332-7HG42"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 5SJ4332-7HG42?","answer":"Submit an RFQ against your BOM quantity. No stock-holding claim is made here."},{"question":"Will 5SJ4332-7HG42 drop into a panel specified around 5SY6332-7CC without rewiring?","answer":"Both are 3-pole C-curve MCBs on standard DIN-rail mounting, so the mechanical fit and basic function are the same. However, the 5SJ4 series and 5SY6 series differ in breaking capacity ratings and internal construction — confirm the SCCR and selectivity coordination for your specific panel before substituting without a design review."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SJ4332-7HG42","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/5SJ4332-7HG42 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}}