{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9307-7QS20","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9307-7QS20","canonicalUrl":"https://aoctrl.com/siemens/5SU9307-7QS20","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9307-7QS20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens Crabtree Polestar RCBO, 16 kA type A, 30 mA, C20, Long Tail, order code 5SU9307-7QS20.","salesMarkdown":"## What this RCBO carries Type A detection means it trips on sinusoidal AC and pulsating DC residual currents — the minimum for circuits feeding single-phase electronics, switch-mode supplies, or variable-speed drives where pure AC-only (Type AC) protection would miss a fault. The C20 curve (C characteristic, 20 A rated current) handles moderate inrush from motorized loads or capacitive banks without nuisance tripping, while the 30 mA residual threshold provides personal protection against direct-contact faults. Snap-on DIN rail mounting, 2-module width. Verify busbar compatibility (Crabtree Polestar range uses a specific busbar pitch and fork profile) before ordering for a retrofit.","metaTitle":"Siemens 5SU9307-7QS20 RCBO Crabtree Polestar, 16 kA Type A,","metaDescription":"Siemens 5SU9307-7QS20 RCBO Crabtree Polestar, 16 kA breaking capacity, Type A, 30 mA residual, C20 curve, Long Tail. 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/afd84d4cd92063d3fe7003ce39deab53.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=760563&mlfb=5SU9307-7QS20","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9307-7QS20/alternatives.json"},"ai":{"faq":[{"question":"What does the 'Long Tail' mean on this RCBO?","answer":"Long Tail refers to the neutral pigtail — a flexible flying lead that connects the RCBO's neutral pole to the neutral busbar, standard in UK distribution board layouts where the neutral bar is separate from the DIN-mounted devices."},{"question":"Where can I buy the 5SU9307-7QS20?","answer":"The 5SU9307-7QS20 is sourced to order against an RFQ through independent distribution channels. 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/5SU9307-7QS20","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/5SU9307-7QS20 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}}