{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4100-7XX02","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4100-7XX02","canonicalUrl":"https://aoctrl.com/siemens/5SY4100-7XX02","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4100-7XX02","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4100-7XX02, 1-pole miniature circuit breaker, C-curve 2.5 A, 10 kA (EN 60898), 35 kA (IEC 60947-2), 5 kA (UL 1077), 400 V AC, 72 V DC, width 27 mm, depth 76 mm.","salesMarkdown":"Three breaking-capacity figures govern where this MCB can be installed. Under IEC 60947-2 it carries 35 kA, which qualifies it for industrial panels where fault levels are higher; the 60947-2 standard covers performance under industrial conditions (pollution degree 3, overvoltage category III). Under UL 1077 and CSA C22.2 No. 235 it is rated 5 kA, so it can serve as a supplementary protector in North American equipment — but not as a branch-circuit main (that requires a UL 489 listing). The buyer must match the applicable standard to the jurisdiction and the panel's available fault current. ## Voltage and duty On a single-pole MCB the DC rating is important — many 1P breakers are AC-only; this one handles DC circuits up to 72 V, so it can protect a 48 V DC control supply or a 24 V DC bus. The multi-phase AC rating goes to 440 V, meaning it can be used in 3-phase 400 V systems with one pole per phase. The auxiliary switch (1 NO + 1 NC) integrated into the design allows remote status monitoring — a common requirement for PLC-based fault annunciation or for signalling a tripped breaker in an automated line. Any mounting position is allowed, which simplifies panel layout. IP20 with connected conductors (finger-safe when wired). Operating temperature range -40 °C to 75 °C, with derating for humidity: max 95% RH at 55 °C, tapering to 35% RH at 75 °C. Sealable terminals are available for anti-tamper requirements.","metaTitle":"Siemens 5SY4100-7XX02 SENTRON MCB, 1P C 2.5A, 10kA","metaDescription":"Siemens 5SY4100-7XX02 SENTRON miniature circuit breaker, 1-pole, C-curve, 2.5 A, 10 kA (EN 60898), 35 kA (IEC 60947-2), 5 kA (UL 1077). Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"27 mm","title":"5SY4100-7XX02","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Rated Value":"50/60 Hz","description":"Circuit breaker 230/400V, 10kA, 1-pole, C, 2.5A with auxiliary current switch 1 NO + 1 NC","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting type":"Quick assembly system","Number of poles":"1","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Degree of pollution":"3","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","at AC / rated value":"400 V","Overvoltage category":"III","Combined Terminal Top":"Yes","Design of the product":"With auxiliary switch 1 NO+1 NC","Energy limiting class":"3","Number of width units":"1","Number of poles / Note":"1P","acc. to DIN EN 81346-2":"F","Combined Terminal Bottom":"Yes","Suitability for operation":"Mechanical engineering / industry","Tripping characteristic class":"C","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"10 kA","Position / of power supply cord":"Any","acc. to IEC 60947-2 / rated value":"35 kA","Product feature / Touch protection":"Yes","Operating current / at AC / rated value":"2.5 A","Influence of the surrounding temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","at AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","Product function / neutral conductor switching":"No","with multi-phase operation / at AC / rated value":"440 V","with single-phase operation / at AC / rated value":"440 V","Mechanical service life (switching cycles) / typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/1d4053573839a0e7b157f5319ed81c73.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=454816&mlfb=5SY4100-7XX02"},"ai":{"faq":[{"question":"Where can I buy 5SY4100-7XX02 and how do I 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 closest functional second-source to 5SY4100-7XX02?","answer":"The 5SY4101-7CV is the nearest peer — same 1-pole C-curve SENTRON platform, same breaking capacities and voltage ratings, but a different current rating. Verify the ampacity before substituting."},{"question":"Will 5SY4100-7XX02 drop into a panel specified around 5SY4101-7CV without rewiring?","answer":"Yes — both share the same 27 mm width, 76 mm depth, DIN-rail quick-assembly mounting, and terminal layout. The only difference is the current rating; if the circuit's load matches the 5SY4100-7XX02's 2.5 A, it is a direct mechanical swap."},{"question":"What compliance documentation does Siemens provide for 5SY4100-7XX02?","answer":"The MCB carries ratings per EN 60898, IEC 60947-2, and UL 1077 / CSA C22.2 No. 235. It is halogen-free and silicon-free. Standard Siemens documentation includes a CE declaration, RoHS/REACH compliance statements, and the datasheet with the full approvals list."},{"question":"What are the key dimensions of 5SY4100-7XX02?","answer":"Width 27 mm, depth 76 mm, height 90 mm, installation depth 70 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4100-7XX02","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/5SY4100-7XX02 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}}