{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1644-1RC32","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1644-1RC32","canonicalUrl":"https://aoctrl.com/siemens/5SU1644-1RC32","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1644-1RC32","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1644-1RC32 RCBO, 32 A, 4-pole, 8 modules, C characteristic, Type AC, 300 mA residual current.","salesMarkdown":"The Siemens 5SU1644-1RC32 is an RCBO (residual current circuit breaker with overcurrent protection) rated 32 A, 4-pole, in an 8-module width, with a C characteristic and Type AC 300 mA residual current sensitivity. The Type AC 300 mA residual detects sinusoidal AC earth faults only, not pulsating or DC components, so it fits general-purpose distribution boards where no variable-speed drives or electronic loads are downstream. ## Panel Integration The 8-module width (roughly 144 mm on a standard DIN rail) means it occupies eight 18 mm pole spaces in the enclosure. For a 4-pole RCBO that is a compact footprint — typical for sub-distribution boards where space is tight.","metaTitle":"Siemens 5SU1644-1RC32 RCBO 32A 4-pole C-curve 300mA Type AC","metaDescription":"Siemens 5SU1644-1RC32 RCBO, 32 A, 4-pole, 8 modules, C characteristic, Type AC, 300 mA residual current. 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=385810&mlfb=5SU1644-1RC32","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1644-1RC32/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SU1644-1RC32 and get a price?","answer":"The 5SU1644-1RC32 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 5SU1644-1RC32's rated current and residual sensitivity?","answer":"It is rated 32 A, 4-pole, with a C characteristic and Type AC 300 mA residual current sensitivity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1644-1RC32","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/5SU1644-1RC32 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}}