{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1354-0LB25","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1354-0LB25","canonicalUrl":"https://aoctrl.com/siemens/5SU1354-0LB25","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1354-0LB25","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1354-0LB25 RCBO, B-curve 25 A, 10 kA breaking capacity, 1P+N, 230/240 V AC, 2 MW, short-time delayed G, super resistant K.","salesMarkdown":"The Siemens 5SU1354-0LB25 is a SENTRON RCBO — a combined residual current circuit breaker with overcurrent protection — rated 25 A at 30 °C with a B-curve tripping characteristic and a 10 kA breaking capacity per EN 60898 at 230/240 V AC. It protects a 1P+N circuit (switched phase, solid neutral) and integrates both overcurrent and earth-leakage detection in a single 2-MW (36 mm) wide module. The B-curve means the magnetic trip fires at 3 to 5 times rated current — so for a 25 A device, instantaneous trip between 75 A and 125 A. That's the standard SCCR for most final sub-circuits in a TN or TT system — it coordinates with a 10 kA-rated upstream MCB or fuse. The 50/60 Hz operating frequency covers both mains standards globally. The thermal derating curve is published: 25 A at 30 °C, 23.5 A at 40 °C, 22.75 A at 45 °C, 21.75 A at 50 °C, 20.25 A at 55 °C and 60 °C, 19.25 A at 65 °C, and 18.25 A at 70 °C (–). If this RCBO lives in a hot panel — say near a drive or transformer — size the load to the ambient temperature, not the 30 °C headline number. The -40 °C to 75 °C operating range means it holds up to steam and press temperatures in a tire-curing environment, as long as the enclosure keeps the IP20 rating intact. The RCBO detects AC fault currents only — it's not suitable for pulsating DC or smooth DC residual currents from VFDs or UPS systems. The design is short-time delayed G, super resistant K, meaning it withstands high inrush and nuisance tripping from capacitive or inductive loads better than a standard G type.","metaTitle":"Siemens 5SU1354-0LB25 SENTRON RCBO, B-Curve 25 A, 10 kA, 1P+","metaDescription":"Siemens SENTRON 5SU1354-0LB25 RCBO, 25 A B-curve, 10 kA breaking capacity at 230/240 V AC, 1P+N, 2 MW. Current lifecycle. Available to order. Request RFQ.","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","at 30 Cel":"25 A","at 40 Cel":"23.5 A","at 45 Cel":"22.75 A","at 50 Cel":"21.75 A","at 55 Cel":"20.25 A","at 60 Cel":"20.25 A","at 65 Cel":"19.25 A","at 70 Cel":"18.25 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Number of poles":"2","Type of voltage":"AC","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","Protection class IP":"IP20, if the distribution board is installed, with connected conductors","at AC / rated value":"230/240 V","Overvoltage category":"III","Design of the product":"Short-time delayed G, super resistant K","Energy limiting class":"3","Number of width units":"2","Type of fault current":"AC","Number of poles / Note":"1P+N","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","circuit-breaker / Design":"5SU1","Tripping characteristic class":"B","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","Supply voltage frequency / rated value":"50 Hz","Operating current / at AC / rated value":"25 A","Tripping residual current / rated value":"30 mA","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/fa213d10fa104b15a1927821a3daae1f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=453761&mlfb=5SU1354-0LB25","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1354-0LB25/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SU1354-0LB25 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit a request for quote (RFQ) to confirm current availability and pricing — no stock count or price is published here."},{"question":"What is the depth of 5SU1354-0LB25?","answer":"The depth is 77 mm, with an installation depth of 70 mm. Width is 36 mm (2 MW), height is 90 mm."},{"question":"Will 5SU1354-0LB25 drop into a panel specified for 5SL6563-7BB without rewiring?","answer":"Both are 2-MW (36 mm) wide RCBOs in the SENTRON family, so the footprint and DIN-rail clip are identical. The 5SU1354-0LB25 is a 1P+N RCBO with B-curve and 25 A rating; the 5SL6563-7BB is a different variant. Verify the neutral connection (solid vs switched) and the residual current type (AC vs A) before swapping — the physical drop-in is fine, but the circuit protection scheme must match."},{"question":"What compliance documentation does Siemens provide for 5SU1354-0LB25?","answer":"The part carries EN 60898 certification for the 10 kA breaking capacity. It is halogen-free and silicon-free. Standard Siemens documentation includes a CE declaration of conformity and RoHS/REACH compliance data sheets available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1354-0LB25","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/5SU1354-0LB25 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}}