{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1354-1LB20","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1354-1LB20","canonicalUrl":"https://aoctrl.com/siemens/5SU1354-1LB20","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1354-1LB20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1354-1LB20 RCBO, 2-pole 1P+N, rated current 20 A, tripping characteristic C, residual current type AC 30 mA, breaking capacity 10 kA (EN 60898) / 20 kA (IEC 60947-2).","salesMarkdown":"The Siemens 5SU1354-1LB20 is a SENTRON RCBO (residual current circuit breaker with overcurrent protection) in a 2-pole 1P+N configuration, rated 20 A with a C tripping characteristic and 30 mA AC residual current sensitivity. The 30 mA AC residual current type catches sinusoidal earth faults only — not pulsating DC or smooth DC, so it's correct for general-purpose circuits but not for variable-speed drives or EV chargers that generate DC fault content. Rated current derates with ambient temperature: 20 A at 30 °C, 18.8 A at 40 °C, 14.6 A at 70 °C. In a crowded enclosure running warm, the actual continuous load should be sized against the derated figure, not the 20 A label. That matters in industrial panels where equipment start-up transients are routine. Snaps onto DIN rail in any orientation.","metaTitle":"Siemens 5SU1354-1LB20 SENTRON RCBO, 2-pole 1P+N, 20 A, Type","metaDescription":"Siemens 5SU1354-1LB20 SENTRON RCBO, 2-pole 1P+N, 20 A rated, Type C trip, 30 mA AC residual current, 10 kA (EN 60898) / 20 kA (IEC 60947-2). Active 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","Width":"36 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"2","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Operating Frequency":"50/60 Hz","Product Designation":"RCBO","acc. to IEC 81346-2":"F","at AC / rated value":"20 A","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Short-time delayed G, super resistant K","Residual Current Type":"AC","Number Of Poles / Note":"1P+N","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","Weight / With Packaging":"283 g","at 30 °C / rated value":"20 A","at 40 °C / rated value":"18.8 A","at 45 °C / rated value":"18.2 A","at 50 °C / rated value":"17.4 A","at 55 °C / rated value":"16.2 A","at 60 °C / rated value":"16.2 A","at 65 °C / rated value":"15.4 A","at 70 °C / rated value":"14.6 A","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","acc. to EN 60898 / rated value":"10 kA","For Testing Equipment / Minimum":"195 V","Position / Of Power Supply Cord":"Either top or bottom","Number Of Poles / With Protection":"1","acc. to IEC 60947-2 / rated value":"20 kA","Product Feature / Touch Protection":"Yes","Tripping Fault Current / Rated Value":"30 mA","Supply Voltage Frequency / Rated Value":"50 Hz","Influence Of The Surrounding Temperature":"Max. 95% humidity","Surge Current Resistance / At (8/20) μS":"3 kA","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/f1a42bff29a6f3085b76ada70bb9f828.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=350709&mlfb=5SU1354-1LB20","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1354-1LB20/alternatives.json"},"ai":{"faq":[{"question":"What is 5SU1354-1LB20's listed depth?","answer":"The depth is 77 mm, with an installation depth of 70 mm."},{"question":"What is 5SU1354-1LB20's listed width?","answer":"The width is 36 mm, occupying 2 modular width units."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1354-1LB20","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/5SU1354-1LB20 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}}