{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1353-1WM20","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1353-1WM20","canonicalUrl":"https://aoctrl.com/siemens/5SU1353-1WM20","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1353-1WM20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1353-1WM20 RCBO, 1P+N, C-curve 20 A, 30 mA AC residual current, 4.5 kA (EN 60898) / 15 kA (IEC 60947-2), 2 MW, halogen-free.","salesMarkdown":"The Siemens 5SU1353-1WM20 is a 1P+N RCBO from the SENTRON series — a combined overcurrent and residual-current device that protects a single-phase final circuit against overload, short-circuit, and earth faults. The C-curve (20 A rated current) trips between 5× and 10× In, so it handles moderate inrush from motorized loads like pumps or small compressors without nuisance tripping. The 30 mA AC residual-current element (type AC) catches sinusoidal earth faults, which covers standard socket-outlet and lighting circuits in residential or commercial panels. Breaking capacity is rated 4.5 kA per EN 60898 for domestic distribution boards and 15 kA per IEC 60947-2 for industrial applications — the higher figure gives headroom in panels with higher prospective fault current. The 2-module-width (36 mm) body fits standard DIN-rail enclosures; installation depth is 70 mm, so it clears shallow enclosures. Terminal capacity accepts solid or stranded conductors from 0.75 to 35 mm², covering most final-circuit cable sizes up to 6 AWG. Tightening torque is 2.5–3 N·m, typical for screw terminals on this class of device. Ambient temperature range is -25 to +55 °C, storage -40 to +75 °C, and the housing is halogen-free and silicon-free, which matters for panels in environments with sensitive electronics or strict fire-safety requirements (e.g., rail, marine, or data-center applications).","metaTitle":"Siemens 5SU1353-1WM20 SENTRON RCBO, 1P+N C 20A, 30mA, 4.5kA","metaDescription":"Siemens SENTRON 5SU1353-1WM20 RCBO, 1P+N, C-curve 20A, 30mA AC residual current, 4.5kA (EN 60898) / 15kA (IEC 60947-2), 2 MW, halogen-free. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Solid":"0.75 ... 35 mm²","Maximum":"6.6 W","Stranded":"0.75 ... 35 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":"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","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":"1","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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=341537&mlfb=5SU1353-1WM20","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1353-1WM20/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of the 5SU1353-1WM20?","answer":"It is a 1P+N RCBO with C-curve 20 A overcurrent protection, 30 mA AC type residual current, 4.5 kA breaking capacity per EN 60898 and 15 kA per IEC 60947-2, rated for 50 Hz systems."},{"question":"Where can I buy the 5SU1353-1WM20?","answer":"This part is sourced to order through independent distribution. Submit an RFQ for current availability and pricing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1353-1WM20","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/5SU1353-1WM20 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}}