{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1644-7RC40","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1644-7RC40","canonicalUrl":"https://aoctrl.com/siemens/5SU1644-7RC40","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1644-7RC40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1644-7RC40 RCBO, 40 A, 4-pole, 7 modules, C characteristic, Type A 300 mA.","salesMarkdown":"Type A residual current detection handles pulsating DC and sinusoidal AC fault currents up to 300 mA, which covers most single-phase electronic loads like switched-mode power supplies and variable-speed drives. The C-curve characteristic suits circuits with motor loads, pumps, or compressors where the inrush current exceeds the B-curve threshold but stays within the C-curve range.","metaTitle":"Siemens 5SU1644-7RC40 RCBO 40 A 4-pole, C curve, Type A 300m","metaDescription":"Siemens 5SU1644-7RC40 RCBO, 40 A, 4-pole, 7 modules, C characteristic, Type A 300 mA. Current production. Sourced to order against an RFQ.","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":"https://cdn.aoctrl.com/bed74928c9539d6c50f1eb1e06da07d1.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=527650&mlfb=5SU1644-7RC40","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1644-7RC40/alternatives.json"},"ai":{"faq":[{"question":"What is the 5SU1644-7RC40 used for?","answer":"It is a 40 A 4-pole RCBO with C characteristic and Type A 300 mA residual current protection, used in distribution boards to combine overcurrent and earth-fault protection in a single DIN-rail device."},{"question":"Where can I buy the 5SU1644-7RC40?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1644-7RC40","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/5SU1644-7RC40 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}}