{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9156-7KK50","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9156-7KK50","canonicalUrl":"https://aoctrl.com/siemens/5SU9156-7KK50","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9156-7KK50","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU9 series, RCD-operated circuit breaker (RCBO), 2-pole 1P+N, 50 A rated current, 30 mA Type A fault current, tripping characteristic C, breaking capacity 6 kA per EN 60898 / 10 kA per IEC 60947-2, width 36 mm (2 MW), depth 77 mm.","salesMarkdown":"The Siemens 5SU9156-7KK50 is a 2-pole (1P+N) RCD-operated circuit breaker — an RCBO — from the SENTRON 5SU9 series. It combines overcurrent protection (characteristic C, 50 A rated) with residual-current protection (30 mA, Type A) in a single 36 mm wide module, saving a DIN-rail position compared to separate MCB + RCCD. The 50 A rating at 30 °C is the headline number, but the derated values matter for a warm enclosure: at 40 °C it carries 47 A, at 45 °C it carries 45.5 A, and at 50 °C it carries 43.5 A (–). The 10 kA rating gives headroom for industrial panels with higher prospective fault current — the 6 kA figure is the limit for residential or light commercial boards. Overvoltage category III confirms it is rated for fixed-installation downstream of the utility meter. The 30 mA trip threshold protects against direct-contact shock hazard. Touch protection is built in. Width is 36 mm, depth is 77 mm, height is 90 mm. Installation depth is 70 mm. Solid and stranded conductor range is 0.75 to 35 mm².","metaTitle":"Siemens 5SU9156-7KK50 SENTRON RCBO, 50 A, 30 mA Type A, 6 kA","metaDescription":"Siemens 5SU9156-7KK50 SENTRON RCBO, 2-pole 1P+N, 50 A rated, 30 mA Type A fault current, tripping characteristic C, breaking capacity 6 kA (EN 60898) / 10 kA (IEC 60947-2). Active","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","Design of the product":"Instantaneous","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":"https://cdn.aoctrl.com/c0ed7ffb05e8bdbb4de41d584e5785b5.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629238&mlfb=5SU9156-7KK50","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9156-7KK50/alternatives.json"},"ai":{"faq":[{"question":"What conductor sizes does the 5SU9156-7KK50 accept?","answer":"Solid and stranded conductors from 0.75 mm² up to 35 mm²."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9156-7KK50","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/5SU9156-7KK50 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}}