{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1354-7LB20","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1354-7LB20","canonicalUrl":"https://aoctrl.com/siemens/5SU1354-7LB20","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1354-7LB20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1 RCBO, 2-pole 1P+N, 20 A rated, Type A fault current, 10 kA breaking capacity, tripping characteristic C.","salesMarkdown":"## Siemens 5SU1354-7LB20 SENTRON RCBO — 20 A, Type A, 10 kA The Siemens 5SU1354-7LB20 is a 2-pole (1P+N) residual current circuit breaker with overcurrent protection (RCBO) from the SENTRON 5SU1 series. It combines a 20 A thermal-magnetic overcurrent release (tripping characteristic C) with a Type A residual current device in a single 36 mm wide unit. The 10 kA breaking capacity per EN 60898 means it can safely interrupt fault currents up to that level on a 230/240 V AC supply, making it suitable for final circuits in residential and commercial distribution boards where both short-circuit and earth-fault protection are required in one device. The Type A RCD detects pulsating DC fault currents, which is essential for circuits supplying electronics, variable-speed drives, or appliances with rectifiers; Type A is the minimum requirement for most modern household and commercial installations. The 10 kA breaking capacity per EN 60898 certifies the device for use in installations where the prospective short-circuit current does not exceed 10 kA — common in distribution boards downstream of a main switch or upstream breaker. ## Thermal derating and installation conditions The 20 A rating applies at 30 °C ambient; derate progressively to 14.6 A at 70 °C (–). The device is 36 mm wide (2 width units) and 77 mm deep, with an installation depth of 70 mm. The 5SU1 design accepts supply from either top or bottom.","metaTitle":"Siemens 5SU1354-7LB20 SENTRON RCBO, 20 A, Type A, 10 kA","metaDescription":"Siemens 5SU1354-7LB20 SENTRON RCBO, 2-pole 1P+N, 20 A rated, Type A fault current, 10 kA breaking capacity per EN 60898. Active production, sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","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":"20 A","at 40 Cel":"18.8 A","at 45 Cel":"18.2 A","at 50 Cel":"17.4 A","at 55 Cel":"16.2 A","at 60 Cel":"16.2 A","at 65 Cel":"15.4 A","at 70 Cel":"14.6 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":"A","Number of poles / Note":"1P+N","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":"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","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/3f9059db3178bc979d0c79a085b5ebbc.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=339655&mlfb=5SU1354-7LB20","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1354-7LB20/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SU1354-7LB20 and how is it quoted?","answer":"The 5SU1354-7LB20 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 to 5SU1354-7LB20?","answer":"The peer MPN 5SU9354-7KK16 is a functionally similar SENTRON RCBO, but it is a different design variant (5SU9 series) with different tripping characteristics. Verify the specific ratings (current, curve, fault type) against your BOM before substituting — the 5SU1354-7LB20 is a short-time delayed G, super resistant K design."},{"question":"What compliance documentation does Siemens provide for 5SU1354-7LB20?","answer":"The device is halogen-free and silicon-free. It is designed per EN 60898 and carries overvoltage category III, pollution degree 2. Standard Siemens documentation includes RoHS and REACH declarations; consult the product support page for the specific declaration of conformity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1354-7LB20","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/5SU1354-7LB20 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}}