{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1323-1BB20","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1323-1BB20","canonicalUrl":"https://aoctrl.com/siemens/5SU1323-1BB20","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1323-1BB20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1323-1BB20 RCBO, 2-pole, Type AC, 30 mA, C-curve, 20 A rated, 4.5 kA (EN 60898), 15 kA (IEC 60947-2), 50 Hz, IP20, halogen-free, silicon-free.","salesMarkdown":"The Siemens 5SU1323-1BB20 is a 2-pole RCBO (residual-current circuit breaker with overcurrent protection) from the SENTRON series, combining a C-curve miniature circuit breaker (20 A rated current) with a 30 mA Type AC residual-current device in a single 4-module-width unit. It is designed for residential and commercial final circuits where both overcurrent and earth-fault protection are needed in one device — saving a DIN-rail slot compared to separate MCB+RCCB. The 30 mA residual-current element (Type AC, sensitive to sinusoidal AC fault currents) provides personnel protection in standard domestic and commercial installations. Breaking capacity is 4.5 kA per EN 60898 (the standard for household MCBs) and 15 kA per IEC 60947-2 (the industrial standard) — the higher figure gives headroom for installations with higher prospective fault currents. Tightening torque is 2.5 to 3 N·m.","metaTitle":"Siemens 5SU1323-1BB20 SENTRON RCBO, 20 A, 30 mA, C-Curve, 4.","metaDescription":"Siemens SENTRON 5SU1323-1BB20 RCBO, 2-pole, Type AC, 20 A rated, 30 mA residual, C-curve, 4.5 kA (EN 60898) / 15 kA (IEC 60947-2). Active production, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Solid":"1.5 ... 25 mm²","Stranded":"1.5 ... 25 mm²","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 ... +55 °C","Product designation":"RCBO","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":"4","Type of fault current":"AC","Number of poles / Note":"2P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","circuit-breaker / Design":"5SU1","Current / at AC / rated value":"20 A","Tripping characteristic class":"C","acc. to EN 60898 / rated value":"4.5 kA","For Testing Equipment / Minimum":"195 V","Position / of power supply cord":"Either top or bottom","Number of poles / with protection":"2","acc. to IEC 60947-2 / rated value":"15 kA","Product feature / Touch protection":"Yes","Supply voltage frequency / rated value":"50 Hz","Tripping residual current / rated value":"30 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/f8a3f804604e34cc21a3fa836405929c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=177928&mlfb=5SU1323-1BB20","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1323-1BB20/alternatives.json"},"ai":{"faq":[{"question":"Who supplies 5SU1323-1BB20 and how is it quoted for volume purchases?","answer":"This part is sourced through independent industrial-automation distribution. Submit an RFQ for current pricing and availability — quotes are confirmed at time of request."},{"question":"What is the solid and stranded conductor range for 5SU1323-1BB20?","answer":"Both solid and stranded conductors are accepted from 1.5 to 25 mm². The screw terminals are designed for this full range."},{"question":"What compliance documentation does Siemens provide for 5SU1323-1BB20?","answer":"The device is rated per EN 60898 (4.5 kA) and IEC 60947-2 (15 kA). It carries a CE marking for the European market. For specific RoHS/REACH declarations, refer to the manufacturer's documentation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1323-1BB20","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/5SU1323-1BB20 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}}