{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1353-1WM40","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1353-1WM40","canonicalUrl":"https://aoctrl.com/siemens/5SU1353-1WM40","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1353-1WM40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1353-1WM40 RCBO, 1P+N, 40 A, C-curve, 30 mA AC type, 4.5 kA (EN 60898) / 10 kA (IEC 60947-2), 2 MW, IP20.","salesMarkdown":"It combines overcurrent and earth-fault protection in a single 2-module-width (36 mm) package, saving rail space in a DIN-rail distribution board. Rated breaking capacity is 4.5 kA per EN 60898 for residential and commercial final circuits, and 10 kA per IEC 60947-2 for industrial applications where higher fault currents are expected. The C-curve (5–10× In) handles moderate inrush from motorized loads like pumps or compressors without nuisance tripping. The 30 mA AC-type residual current element protects against direct-contact faults and provides supplementary fire protection in circuits supplying socket outlets or portable equipment. It's rated for 50 Hz supply and accepts supply from either top or bottom, simplifying panel wiring. ## Temperature range and environmental tolerance The wide span means no derating for most real-world panel conditions. Halogen-free and silicon-free construction reduces toxic smoke in a fire and avoids silicone outgassing that can contaminate relay contacts or optical sensors in shared enclosures. Listed as current production (active lifecycle stage). The 5SU1353-1WM40 is a standard catalog item in the SENTRON RCBO family, not subject to phase-out or last-time-buy. Two modular width units (36 mm) and 70 mm depth leave clearance for wiring and adjacent devices. Touch-protected terminals reduce arc-flash risk during commissioning. Neutral conductor is switched internally (1P+N), so the device isolates both phase and neutral on fault. Supply cord position is flexible — top or bottom feed — which helps when retrofitting into an existing board with fixed busbar orientation.","metaTitle":"Siemens 5SU1353-1WM40 SENTRON RCBO, 40A C-curve 30mA AC type","metaDescription":"Siemens SENTRON 5SU1353-1WM40 RCBO, 40A rated, C-curve, 30mA AC residual current, 4.5kA (EN 60898) / 10kA (IEC 60947-2). Active production, sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Maximum":"75 °C","Minimum":"-40 °C","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 Hz","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":"40 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":"10 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","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=107566&mlfb=5SU1353-1WM40","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1353-1WM40/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SU1353-1WM40?","answer":"Rated 4.5 kA per EN 60898 for residential/commercial circuits and 10 kA per IEC 60947-2 for industrial applications."},{"question":"What is the temperature range for the 5SU1353-1WM40?","answer":"Ambient temperature range is -40 °C to 75 °C, covering cold outdoor cabinets and warm indoor panels."},{"question":"How do I get pricing and availability for 5SU1353-1WM40?","answer":"Submit an RFQ through the storefront. Availability and current pricing are confirmed at quote time; the part is sourced to order through independent distribution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1353-1WM40","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/5SU1353-1WM40 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}}