{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SJ4101-8HG41","brand":"Siemens","brandSlug":"siemens","productSlug":"5SJ4101-8HG41","canonicalUrl":"https://aoctrl.com/siemens/5SJ4101-8HG41","factsUrl":"https://aoctrl.com/api/mcp/products/5SJ4101-8HG41","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SJ4 series, miniature circuit breaker, 1-pole, D tripping characteristic, 10 kA (EN 60898) / 15 kA (IEC 60947-2), 400 V AC, 60 V DC, 18 mm width, IP20/IP40.","salesMarkdown":"## What it is and where it fits The Siemens 5SJ4101-8HG41 is a 1-pole SENTRON miniature circuit breaker from the 5SJ4 series, designed with a D tripping characteristic. It protects branch circuits in control panels and distribution boards against overload and short-circuit, rated for 400 V AC and 60 V DC. The D curve means it tolerates high inrush currents — typical for motor starters, transformers, or welding equipment — without nuisance tripping, while still clearing faults at its rated breaking capacities. Rated for pollution degree 3 and overvoltage category III, meaning it's suited for fixed industrial installations where conductive contamination is possible (e.g., machine enclosures, panel interiors). IP20 with conductors connected; IP40 in the handle area — enough for enclosed panels, not for washdown zones. ## Breaking capacity and selectivity This breaker carries two breaking-capacity ratings: 10 kA per EN 60898 (household-type MCB standard) and 15 kA per IEC 60947-2 (industrial standard). The higher IEC figure is the one that governs panel SCCR coordination in an industrial line — it means the breaker can safely interrupt a 15 kA prospective fault at 400 V AC without upstream devices needing to clear first. For DC circuits, the maximum rated voltage is 60 V DC. The D characteristic (10–20× In magnetic trip) pairs well with loads that draw a brief inrush several times the rated current — think motor contactors, solenoid banks, or power supplies. For purely resistive or lightly inductive loads, a B or C curve would trip faster; the D curve is the right call where nuisance trips on start-up are the main concern. ## Lifecycle and sourcing Production status is current — this is an active catalog item, not a phase-out or NRND line. The 5SJ4 series remains Siemens' standard offering for panel-protection in the SENTRON family. Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.","metaTitle":"Siemens 5SJ4101-8HG41 SENTRON MCB, 1P, D-curve, 10kA/15kA","metaDescription":"Siemens 5SJ4101-8HG41 SENTRON miniature circuit breaker, 1-pole, D characteristic, 10 kA per EN 60898, 15 kA per IEC 60947-2, 400 V AC / 60 V DC, 18 mm wide, active production, ava","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"70 mm","Width":"18 mm","title":"5SJ4101-8HG41","Height":"110 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 240 V 14kA, 1-pole, D, 1 A, D=70 mm according to UL 489","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"1P","Number Of Poles":"1","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":"1","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"D","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","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":"1.5 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$38.10","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/084e6ab1ce1f9ef67f85f1cf2c26e9be.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=436429&mlfb=5SJ4101-8HG41"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SJ4101-8HG41?","answer":"Rated 10 kA per EN 60898 and 15 kA per IEC 60947-2 at 400 V AC. The higher IEC rating is the one to use for industrial panel SCCR coordination."},{"question":"What does the D characteristic mean for this MCB?","answer":"The D curve trips magnetically at 10 to 20 times the rated current, so it withstands high inrush without nuisance tripping. It is specified for motor, transformer, and welding loads."},{"question":"What is the width of 5SJ4101-8HG41?","answer":"18 mm, which is one modular unit (1 MW) on standard DIN rail. This keeps panel density high."},{"question":"Where can I buy 5SJ4101-8HG41?","answer":"This part is sourced and quoted to order against an RFQ through independent industrial-automation distribution. Availability and current pricing are confirmed at quote time — no stock or price figures are published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SJ4101-8HG41","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/5SJ4101-8HG41 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}}