{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY3150-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY3150-7","canonicalUrl":"https://aoctrl.com/siemens/5SY3150-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY3150-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY3 series, miniature circuit breaker, order code 5SY3150-7, 1-pole, 50 A, C-trip characteristic, 4.5 kA breaking capacity per EN 60898, 6 kA per IEC 60947-2, 400 V AC / 72 V DC, 18 mm wide, halogen-free, silicon-free.","salesMarkdown":"## Siemens 5SY3150-7 — 50 A C-Curve MCB for Panel Protection It breaks fault currents up to 4.5 kA per EN 60898 and 6 kA per IEC 60947-2 at 400 V AC, with a DC rating of 72 V and 15 kA per IEC 60947-2. The 4.5 kA rating under EN 60898 covers residential and light commercial branch circuits; the 6 kA per IEC 60947-2 extends its use to industrial panelboards where higher fault current is expected. The DC rating of 15 kA at 72 V makes it suitable for control-circuit protection in DC bus applications. Energy limiting class 3 means it restricts let-through energy during a fault, aiding downstream coordination. Compared to the 32 A 5SY3132-6, the 5SY3150-7 shares the same C-curve, 1-pole form factor, and breaking capacities — the only difference is the 50 A continuous rating versus 32 A. It will drop into a panel specified for the 32 A variant without rewiring, provided the upstream protection and conductor sizing support 50 A. The 18 mm width (1 width unit) allows dense packing. Touch protection is integral per IP20 with connected conductors. Halogen-free and silicon-free construction is specified — relevant for cleanroom or semiconductor fab environments where outgassing or particle contamination is a concern. The housing materials do not introduce halogens or silicones that could compromise process integrity. Humidity tolerance is specified up to 95% at 55 °C, derating to 35% at 75 °C. Overvoltage category III suits fixed installation in building or industrial distribution. The design reference (5SY3) and product designation (miniature circuit breaker) are consistent with the SENTRON family. Compliance documentation includes the EN 60898 and IEC 60947-2 standards cited in the ratings. The part carries the UL 1077 and CSA C22.2 No. 235 supplementary protection rating at 5 kA for North American installations. RoHS and REACH compliance is standard for current-production Siemens SENTRON MCBs.","metaTitle":"Siemens 5SY3150-7 SENTRON MCB, 50 A, 1P, C-Curve, 4.5 kA","metaDescription":"Siemens 5SY3150-7 SENTRON miniature circuit breaker, 50 A, 1-pole, C-trip characteristic, 4.5 kA (EN 60898) / 6 kA (IEC 60947-2). Halogen-free, silicon-free. Quoted to order agains","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Solid":"0.75 ... 35 mm²","Width":"18 mm","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 35 mm²","Rated Value":"50/60 Hz","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting type":"Quick assembly system","During Storage":"-40 ... +75 °C","Number of poles":"1","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-25 ... +55 °C","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","Energy limiting class":"3","Number of width units":"1","Number of poles / Note":"1P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Combined Terminal Bottom":"Yes","circuit-breaker / Design":"5SY3","Current / at AC / rated value":"50 A","Tripping characteristic class":"C","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"4.5 kA","Position / of power supply cord":"Any","acc. to IEC 60947-2 / rated value":"6 kA","Product feature / Touch protection":"Yes","Influence of the surrounding temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","at DC / acc. to IEC 60947-2 / rated value":"15 kA","at AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","Tightening torque / with screw-type terminals":"2.5 ... 3.5 N·m","Product function / neutral conductor switching":"No","with multi-phase operation / at AC / rated value":"440 V","with single-phase operation / at AC / rated value":"250 V","Mechanical service life (switching cycles) / typical":"10 000","Tightening torque [lbf·in] / with screw-type terminals":"22 ... 31 lbf·in","AWG number / as coded connectable conductor cross section":"18 ... 4"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=394229&mlfb=5SY3150-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY3150-7/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY3150-7?","answer":"The 5SY3150-7 has a breaking capacity of 4.5 kA per EN 60898 and 6 kA per IEC 60947-2 at 400 V AC. For DC circuits at 72 V, it is rated 15 kA per IEC 60947-2. Under UL 1077 and CSA C22.2 No. 235, it is rated 5 kA."},{"question":"Will 5SY3150-7 drop into a panel specified around 5SY3132-6 without rewiring?","answer":"Yes, the 5SY3150-7 shares the same 1-pole, 18 mm wide form factor, C-curve, and breaking capacities as the 32 A 5SY3132-6. It fits the same DIN-rail footprint and terminal arrangement. The only change is the higher 50 A rating, so verify upstream protection and conductor sizing support 50 A before substitution."},{"question":"What is the terminal wire range for 5SY3150-7?","answer":"The combined top and bottom terminals accept solid or stranded conductors from 0.75 to 35 mm²."},{"question":"Where can I buy 5SY3150-7 and how is it quoted?","answer":"The 5SY3150-7 is sourced through independent distribution channels. Availability and current pricing are confirmed at quote time against an RFQ. Submit a request for a firm quotation on your required quantity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY3150-7","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/5SY3150-7 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}}