{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY5225-7CC12","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY5225-7CC12","canonicalUrl":"https://aoctrl.com/siemens/5SY5225-7CC12","factsUrl":"https://aoctrl.com/api/mcp/products/5SY5225-7CC12","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SY5 series, MCB, 2-pole C25, 440V DC, 10kA breaking capacity, order code 5SY5225-7CC12.","salesMarkdown":"## DC-rated miniature circuit breaker for 440 VDC rail The Siemens 5SY5225-7CC12 is a 2-pole miniature circuit breaker from the 5SY5 series, rated C25 curve with a 440V DC breaking capacity of 10kA. This is a DC-rated MCB designed for direct-current applications like DC bus distribution, battery banks, or solar combiner boxes — not a general-purpose AC breaker pressed into DC service. The C25 trip characteristic means it holds 25 A continuous and trips magnetically between 5x and 10x rated current (125–250 A), sized for motor or transformer inrush without nuisance trips on a 440 VDC rail. ## What the DC rating means for fit The 440V DC rating at 10kA is the key selection parameter here. Unlike an AC breaker, a DC MCB must extinguish an arc that has no natural current zero crossing. The 5SY5 series uses a permanent-magnet blowout design to stretch and quench the DC arc. The 2-pole construction switches both the positive and negative lines, which is standard for ungrounded DC systems. For a 24 VDC control circuit this is overkill; it belongs on the main DC power distribution.","metaTitle":"Siemens 5SY5225-7CC12 MCB 2P C25 440V DC 10kA","metaDescription":"Siemens 5SY5225-7CC12 MCB, 2-pole C25 curve, rated 440V DC with 10kA breaking capacity. Current production lifecycle. 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":{"title":"5SY5225-7CC12","description":"MCB 5SY5 CRH 440V DC 10KA 2P C25","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ed5acecf4d6e11332766d69bf59ee74a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1265780&mlfb=5SY5225-7CC12"},"ai":{"faq":[{"question":"Where can I buy 5SY5225-7CC12 and get a price?","answer":"This part 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":"What is the breaking capacity of 5SY5225-7CC12?","answer":"It is rated 10kA at 440V DC, 2-pole, C25 curve. The DC breaking capacity governs its use on DC bus distribution; it is not an AC-rated breaker."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY5225-7CC12","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/5SY5225-7CC12 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}}