{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1323-1BB32","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1323-1BB32","canonicalUrl":"https://aoctrl.com/siemens/5SU1323-1BB32","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1323-1BB32","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1 series RCBO, 2-pole, 32 A rated, 30 mA Type AC residual current, C-tripping characteristic, 4.5 kA (EN 60898) / 15 kA (IEC 60947-2), 400 V AC, 50 Hz.","salesMarkdown":"This RCBO carries two breaking-capacity ratings: 4.5 kA per EN 60898 (the residential standard) and 15 kA per IEC 60947-2 (the industrial standard). The 4.5 kA figure governs its use in domestic consumer units; the 15 kA rating means it can be installed downstream of a larger upstream device in an industrial sub-distribution board where fault currents are higher. The 4-module width occupies four 18 mm DIN spaces — typical for a 2-pole RCBO with neutral switching. ## Installation and wiring constraints Terminals accept solid or stranded conductors from 1.5 mm² up to 25 mm², with a tightening torque of 2.5 to 3 N·m. The supply can enter from either top or bottom, and the mounting position is unrestricted. IP20 applies only when the distribution board is installed and conductors are connected — the device itself is not sealed against dust ingress until enclosed.","metaTitle":"Siemens 5SU1323-1BB32 SENTRON RCBO, 32 A, 30 mA, Type AC, C-","metaDescription":"Siemens 5SU1323-1BB32 SENTRON RCBO, 2P, 32 A, 30 mA Type AC, C-curve, 4.5 kA (EN 60898) / 15 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":{"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":"32 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=255134&mlfb=5SU1323-1BB32","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1323-1BB32/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SU1323-1BB32 and what is the lead time?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the closest functional second-source for 5SU1323-1BB32?","answer":"The 5SL4363-7 is a 2-pole RCBO from the same SENTRON family, but it carries a different tripping characteristic and breaking capacity. The 5SU1323-1BB32 is Type AC, 30 mA, C-curve, 32 A, with 4.5 kA (EN 60898) / 15 kA (IEC 60947-2). Verify the specific ratings before substituting — the 5SL series may differ in residual-current type or short-circuit capacity."},{"question":"What is the solid and stranded conductor range for 5SU1323-1BB32?","answer":"Both solid and stranded conductors are accepted from 1.5 mm² up to 25 mm²."},{"question":"Will 5SU1323-1BB32 drop into a panel specified around 5SL4363-7 without rewiring?","answer":"Both are 2-pole, 4-module-width RCBOs that mount on the same DIN rail, so the mechanical fit is identical. However, the electrical ratings differ — the 5SU1323-1BB32 is 32 A, Type AC, 30 mA, C-curve, with 4.5 kA / 15 kA breaking capacity. The 5SL4363-7 may have different current or fault-current ratings. Confirm the circuit's required parameters before swapping."},{"question":"What compliance documentation does Siemens provide for 5SU1323-1BB32?","answer":"The device is designed to EN 60898 and IEC 60947-2. It carries the SENTRON brand and is halogen-free and silicon-free. For specific RoHS, REACH, or UL documentation, refer to the manufacturer's declaration or request it with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1323-1BB32","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/5SU1323-1BB32 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}}