{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1353-6KV20","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1353-6KV20","canonicalUrl":"https://aoctrl.com/siemens/5SU1353-6KV20","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1353-6KV20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1353-6KV20, FI/LS-PROTECTOR TYPE A (PSE/SSF), D=70MM IFN 30MA, 4.5KA, 1+N-POLE B 20A.","salesMarkdown":"The Siemens 5SU1353-6KV20 is an FI/LS combination unit (RCD + MCB in one module) rated for Type A residual current detection at 30 mA IΔn, with a B-curve thermal-magnetic overcurrent trip set at 20 A and a 4.5 kA breaking capacity. The 1+N-pole configuration protects a single phase and neutral, fitting standard 70 mm deep distribution boards. The B-curve at 20 A means the magnetic trip operates between 3 and 5 times rated current (60–100 A) — suited for resistive and general-purpose loads with moderate inrush, not motor starting. The 70 mm depth (D=70MM) fits flush in most European DIN-rail enclosures without door interference. The PSE/SSF marking indicates compliance with the Swedish PSE standard and the SSF (Swedish Fire Protection Association) requirements, relevant for installations in Sweden and Nordic markets.","metaTitle":"Siemens 5SU1353-6KV20 FI/LS Protector Type A, 20A B-Curve, 3","metaDescription":"Siemens 5SU1353-6KV20 FI/LS protector, Type A (PSE/SSF), 1+N-pole, B 20A, 30mA IΔn, 4.5kA breaking capacity. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"lifecycle_stage":"current"}},"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=494557&mlfb=5SU1353-6KV20","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1353-6KV20/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SU1353-6KV20?","answer":"The breaking capacity is 4.5 kA (Icn), with a rated residual current IΔn of 30 mA Type A."},{"question":"Where can I buy 5SU1353-6KV20?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at the time of quotation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1353-6KV20","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/5SU1353-6KV20 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}}