{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY5101-7CC12","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY5101-7CC12","canonicalUrl":"https://aoctrl.com/siemens/5SY5101-7CC12","factsUrl":"https://aoctrl.com/api/mcp/products/5SY5101-7CC12","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SY5 series, miniature circuit breaker (MCB), order code 5SY5101-7CC12, 1-pole, C1 characteristic, 220V DC rated, 10kA breaking capacity.","salesMarkdown":"The Siemens 5SY5101-7CC12 is a 1-pole miniature circuit breaker from the 5SY5 series, rated for 220V DC with a 10kA interrupting capacity and a C1 tripping curve. ## What the DC Rating Means for Fit Unlike an AC-rated MCB, this breaker is specifically designed and tested for DC interruption. DC arcs are harder to extinguish than AC because there is no natural zero-crossing, so the 5SY5 series uses a magnetic blowout and arc-splitting chamber rated for 220V DC. If you're specifying this for a 24V DC control circuit, the full 10kA rating still applies — the breaker's DC performance is verified at the maximum voltage, not derated. For a 110V DC battery bank or a 220V DC solar string combiner box, the C1 curve and 10kA SCCR give the selectivity headroom needed for coordination with downstream loads. ## Panel Integration The 1-pole width (about 18 mm per pole) allows dense packing in a multi-circuit DC sub-feed. Terminal design accepts copper conductors up to 25 mm² — typical for the 1A rating, but the larger terminal capacity simplifies daisy-chaining bus bars or paralleling feeds. The C1 curve means the magnetic trip point is between 5A and 10A; verify that the connected load's inrush does not exceed this threshold to avoid nuisance tripping.","metaTitle":"Siemens 5SY5101-7CC12 MCB, 220V DC 10kA 1P C1","metaDescription":"Siemens 5SY5101-7CC12 MCB, 1-pole C1 curve, 220V DC rated, 10kA breaking capacity. Current lifecycle stage: active. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c21b5ac18407bb441324bf7c5b3d210f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1265728&mlfb=5SY5101-7CC12","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY5101-7CC12/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY5101-7CC12?","answer":"The MCB is rated for 10kA breaking capacity at 220V DC, 1-pole, with a C1 tripping characteristic."},{"question":"Where can I buy 5SY5101-7CC12?","answer":"This part is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY5101-7CC12","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/5SY5101-7CC12 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}}