{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY7232-8MA","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY7232-8MA","canonicalUrl":"https://aoctrl.com/siemens/5SY7232-8MA","factsUrl":"https://aoctrl.com/api/mcp/products/5SY7232-8MA","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY7232-8MA, 2-pole miniature circuit breaker, D tripping characteristic, 20 kA breaking capacity per IEC 60947-2, 400 V AC, 50/60 Hz.","salesMarkdown":"This is not a residential MCB; the D curve and the 20 kA rating place it squarely in industrial and commercial switchgear. The part is rated for single-phase and multi-phase operation at 440 V AC and operates on 50/60 Hz supply. The DC-side rating tops out at 72 V, so if your application is a DC control circuit, verify that voltage fits your rail. The 2-pole design switches both phase conductors; there is no neutral pole switching, which is standard for a two-pole breaker on a single-phase or split-phase line. The breaker is designed for industrial operation and mounts in any position via the quick-assembly system — standard DIN-rail integration for a 2-module-width unit. The IP20 rating applies only with connected conductors, which is typical for panel-mounted MCBs; the enclosure provides the ingress protection, not the breaker itself. ## Environmental and compliance details The operating temperature range spans -40 °C to 75 °C, with derating for humidity: max 95% RH at 55 °C, tapering to 35% RH at 75 °C. The breaker accepts supplementary devices and has combined terminals top and bottom, simplifying busbar or ring-tongue connections.","metaTitle":"Siemens 5SY7232-8MA SENTRON MCB, 2-Pole, D Curve, 20 kA","metaDescription":"Siemens 5SY7232-8MA SENTRON miniature circuit breaker, 2-pole, D tripping characteristic, 20 kA breaking capacity per IEC 60947-2. Active production, sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","title":"5SY7232-8MA","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60947-2","description":"Miniature circuit breakers 400v Icu 20kA 2 pole, 32 A, only magnetic","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"2P","Number Of Poles":"2","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","at AC rated value":"400 V","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Design Of The Product":"Only magnetic tripping operation","Combined Terminal Bottom":"Yes","Suitability For Operation":"Industry","Neutral Conductor Switching":"No","Number Of Modular Width Units":"2","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"D","according to IEC 60947-2 rated value":"20 kA","Influence Of The Surrounding Temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","Type Of Voltage Of The Operating Voltage":"AC","Value Range Of The Supply Voltage Frequency":"50/60 Hz","operating voltage at DC rated value maximum":"72 V","with multi-phase operation at AC rated value":"440 V","with single-phase operation at AC rated value":"440 V","vibration resistance according to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","power loss [W] for rated value of the current at AC in hot operating state per pole":"3.2 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/dd2cb64deeb26c50faba38125280bc5b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=696500&mlfb=5SY7232-8MA"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY7232-8MA?","answer":"The breaking capacity is 20 kA according to IEC 60947-2 at 400 V AC. This is the rated short-circuit breaking capacity for the industrial standard, not the domestic EN 60898 rating."},{"question":"What does the D tripping characteristic mean for this MCB?","answer":"The D curve means the magnetic trip operates at 10 to 20 times the rated current, designed for loads with high inrush such as motor starters, transformers, and welding equipment. It avoids nuisance tripping on start-up surges that would trip a B or C curve breaker."},{"question":"Where can I buy 5SY7232-8MA and how is it quoted?","answer":"The 5SY7232-8MA is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price is published here."},{"question":"What compliance documentation is available for 5SY7232-8MA?","answer":"The breaker is designed to IEC / EN 60947-2 and carries the SENTRON brand from Siemens. It is halogen-free and silicon-free. For specific RoHS, REACH, or UL documentation, the manufacturer's compliance declarations are typically available via the product support page."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY7232-8MA","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/5SY7232-8MA 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}}