{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1624-1RC40","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1624-1RC40","canonicalUrl":"https://aoctrl.com/siemens/5SU1624-1RC40","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1624-1RC40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1624-1RC40 RCBO, residual current circuit breaker with overcurrent protection, 40 A, 2-pole, 4-module, C characteristic, Type AC, 300 mA.","salesMarkdown":"## What this RCBO carries and where it lands The Siemens 5SU1624-1RC40 is a 2-pole RCBO rated 40 A with C characteristic and Type AC residual-current detection at 300 mA, packed into a 4-module width for DIN-rail enclosures. Type AC detection catches sinusoidal AC earth faults only — not pulsed DC or smooth DC — so it fits general-purpose final circuits (lighting, socket outlets, small appliances) but not inverter-fed loads or EV chargers where mixed-frequency leakage is present. ## Integration note for the panel Four modules wide on a DIN rail — standard 18 mm per module, so it occupies 72 mm of rail space. The 2-pole format switches both line and neutral, with the neutral pole switched but not protected against overcurrent (the RCBO's overcurrent element is on the line pole only). Spring-cage terminals accept 1.5–25 mm² conductors; strip length 10 mm. Verify the busbar pitch matches the 4-module footprint before assembling multi-pole distribution boards.","metaTitle":"5SU1624-1RC40 RCBO 40A 2-pole C-curve 300mA Type AC","metaDescription":"Siemens 5SU1624-1RC40 RCBO, 40 A, 2-pole, C characteristic, Type AC, 300 mA residual current. Current-production lifecycle stage. 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/52163e36d05793439e93a0c49fb881d9.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=449209&mlfb=5SU1624-1RC40","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1624-1RC40/alternatives.json"},"ai":{"faq":[{"question":"What is the 5SU1624-1RC40's rated current and trip characteristic?","answer":"It is a 40 A, C-curve RCBO (trips at 5–10× In) with Type AC residual-current detection at 300 mA, in a 2-pole, 4-module format."},{"question":"Where can I buy the 5SU1624-1RC40?","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/5SU1624-1RC40","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/5SU1624-1RC40 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}}