{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9156-7VK50","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9156-7VK50","canonicalUrl":"https://aoctrl.com/siemens/5SU9156-7VK50","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9156-7VK50","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU9 series, RCD-operated circuit breaker (RCBO), 2-pole 1P+N, 50 A rated, Type A fault current, C-curve tripping characteristic, 6 kA / 10 kA breaking capacity.","salesMarkdown":"The Siemens 5SU9156-7VK50 is a SENTRON RCBO — an RCD-operated circuit breaker that combines overcurrent protection and residual-current detection in a single 2-module (36 mm wide) package. The Type A residual-current element detects pulsating DC fault currents, not just sinusoidal AC — so it covers variable-speed drives, LED drivers, and other electronics that generate half-wave or phase-controlled leakage. ## Breaking capacity and derating Current derating is published: 50 A at 30 °C, 47 A at 40 °C, 45.5 A at 45 °C, 43.5 A at 50 °C, 40.5 A at 55 °C. ## Installation and wiring Touch protection is built in. IP20 rating applies when the distribution board is installed with conductors connected. Halogen-free and silicon-free construction. Overvoltage category III, energy limiting class 3.","metaTitle":"Siemens 5SU9156-7VK50 SENTRON RCBO, 50 A, Type A, 30 mA, C-c","metaDescription":"Siemens SENTRON 5SU9156-7VK50 RCBO, 50 A rated, Type A fault current, 30 mA residual, C-curve trip. 6 kA (EN 60898) / 10 kA (IEC 60947-2). Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"77 mm","Solid":"0.75 ... 35 mm²","Width":"36 mm","Height":"90 mm","Maximum":"1.5 W","Stranded":"0.75 ... 35 mm²","at 30 Cel":"50 A","at 40 Cel":"47 A","at 45 Cel":"45.5 A","at 50 Cel":"43.5 A","at 55 Cel":"40.5 A","Halogen-Free":"Yes","Silicon-Free":"Yes","During Storage":"-40 ... +75 °C","Number of poles":"2","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-25 ... +45 °C","Product designation":"RCD-operated circuit breaker","Protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage category":"III","Energy limiting class":"3","Number of width units":"2","Type of fault current":"A","Number of poles / Note":"1P+N","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","circuit-breaker / Design":"5SU9","Current / at AC / rated value":"50 A","Tripping characteristic class":"C","acc. to EN 60898 / rated value":"6 kA","For Testing Equipment / Minimum":"125 V","Position / of power supply cord":"Either top or bottom","Number of poles / with protection":"1","acc. to IEC 60947-2 / rated value":"10 kA","Product feature / Touch protection":"Yes","Supply voltage frequency / rated value":"50 Hz","Tripping residual current / rated value":"10 mA","Influence of the surrounding temperature":"Max. 95% humidity","Surge current resistance / at (8/20) μs":"1 kA","Tightening torque / with screw-type terminals":"2.5 ... 3 N·m","Product function / neutral conductor switching":"Yes","Mechanical service life (switching cycles) / typical":"10 000"}},"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=629247&mlfb=5SU9156-7VK50","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9156-7VK50/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SU9156-7VK50 and how do I get a price?","answer":"The 5SU9156-7VK50 is sourced to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time."},{"question":"What is 5SU9156-7VK50's listed depth?","answer":"Depth is 77 mm, with an installation depth of 70 mm."},{"question":"What conductor sizes does 5SU9156-7VK50 accept?","answer":"Terminals accept solid or stranded copper from 0.75 mm² up to 35 mm²."},{"question":"What compliance documentation does this brand provide for 5SU9156-7VK50?","answer":"The part is halogen-free and silicon-free. It carries dual breaking-capacity ratings per EN 60898 (6 kA) and IEC 60947-2 (10 kA). Overvoltage category III. RoHS/REACH compliance is standard for SENTRON products but should be confirmed at order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9156-7VK50","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/5SU9156-7VK50 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}}