{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SQ2370-2YA32","brand":"Siemens","brandSlug":"siemens","productSlug":"5SQ2370-2YA32","canonicalUrl":"https://aoctrl.com/siemens/5SQ2370-2YA32","factsUrl":"https://aoctrl.com/api/mcp/products/5SQ2370-2YA32","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON 5SQ miniature circuit breaker, 3-pole, C-curve, 32 A rated, 3 kA breaking capacity at 400 V AC, IP20, 3 modular width units.","salesMarkdown":"The SENTRON 5SQ2370-2YA32 is a 3-pole miniature circuit breaker (MCB) with a C tripping characteristic, rated 32 A at 400 V AC, and a breaking capacity of 3 kA per EN 60898. It occupies 3 modular width units on a DIN rail, with an installation depth of 55 mm. The C-curve means it trips between 5 and 10 times rated current — suited for moderate inrush loads like motor starters and small transformers where a B-curve would nuisance-trip but a D-curve would delay too long. ## Thermal derating and panel fit Rated 32 A at 30 °C, the 5SQ2370-2YA32 derates to 30.4 A at 40 °C and 27.2 A at 60 °C — a consideration when packing multiple breakers into a sealed enclosure with limited airflow. The 3-pole design (3P) does not switch the neutral conductor. Pollution degree 3 and overvoltage category 3 mean it's rated for industrial panels where conductive dust or condensation is present. IP20 finger-safe terminals suit enclosed panel mounting; the 55 mm depth fits standard distribution boards without gland-plate interference.","metaTitle":"SENTRON 5SQ2370-2YA32 MCB, 3-pole, C 32 A, 3 kA, 400 V AC","metaDescription":"SENTRON 5SQ2370-2YA32 miniature circuit breaker, 3-pole, C-curve, 32 A rated, 3 kA breaking capacity per EN 60898 at 400 V AC. Current lifecycle. Sourced to order. Request RFQ for","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Number Of Poles":"3","Type Of Voltage":"AC/DC","lifecycle_stage":"current","Installation Depth":"55 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","at AC / rated value":"32 A","protection class IP":"IP20","Overvoltage Category":"3","Design Of The Product":"Miniature circuit breaker 5SQ","Number Of Poles / Note":"3P","Energy Limitation Class":"3","at 30 °C / rated value":"32 A","at 40 °C / rated value":"30.4 A","at 45 °C / rated value":"29.6 A","at 50 °C / rated value":"28.8 A","at 55 °C / rated value":"28 A","at 60 °C / rated value":"27.2 A","Number Of Modular Width Units":"3","Tripping Characteristic Class":"C","acc. to EN 60898 / rated value":"3 kA","supply voltage / at AC / rated value":"400 V","Product Function / Neutral Conductor Switching":"No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$82.02","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=151987&mlfb=5SQ2370-2YA32","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SQ2370-2YA32/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SQ2370-2YA32?","answer":"The breaking capacity is 3 kA at 400 V AC, tested per EN 60898 — sufficient for most residential and light commercial distribution boards."},{"question":"Will 5SQ2370-2YA32 drop into a panel specified for 5SQ2370-2YA05?","answer":"Yes — both are 3-pole, C-curve MCBs in the same 5SQ family with identical 55 mm depth and 3-module width. The only difference is the rated current: 32 A here versus 0.5 A for the 5SQ2370-2YA05. No rewiring or DIN-rail change is needed."},{"question":"How do I get current pricing and availability for 5SQ2370-2YA32?","answer":"Submit an RFQ through this listing. Pricing and stock are confirmed at quote time through independent distribution channels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SQ2370-2YA32","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/5SQ2370-2YA32 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}}