{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9356-7KP20","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9356-7KP20","canonicalUrl":"https://aoctrl.com/siemens/5SU9356-7KP20","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9356-7KP20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU9 RCBO, 20 A, 30 mA, Type A, 6 kA (EN 60898) / 10 kA (IEC 60947-2), 2-pole 1P+N, C-curve, IP20, halogen-free.","salesMarkdown":"The Siemens 5SU9356-7KP20 is a 2-pole (1P+N) RCD-operated circuit breaker from the SENTRON 5SU9 series — an RCBO that combines overcurrent protection and residual current detection in a single 36 mm wide module. The Type A residual-current element catches pulsating DC faults (common with VFDs, LED drivers, and switched-mode supplies) as well as sinusoidal AC faults. The 20 A rating is at 30 °C ambient; at 40 °C it derates to 18.8 A, at 45 °C to 18.2 A, at 50 °C to 17.4 A, and at 55 °C to 16.2 A. If the panel runs warm — say 45 °C inside a sealed enclosure — the breaker's effective capacity drops to 18.2 A, so size the load accordingly. The C-curve (magnetic trip at 5–10× In) means it's suited for circuits with moderate inrush, like small motors or transformers, without nuisance tripping. The Type A residual-current detection covers pulsed DC faults up to 6 mA superimposed on AC, which is the standard for equipment with single-phase rectifiers. Mounting position is any orientation, so no restrictions on vertical or horizontal rail placement. Supply can be fed from either top or bottom, which simplifies busbar routing in crowded enclosures. IP20 rating is standard for installed distribution boards; the breaker itself is touch-protected per the product feature.","metaTitle":"Siemens 5SU9356-7KP20 SENTRON RCBO, 20 A, 30 mA, Type A, 6 k","metaDescription":"Siemens 5SU9356-7KP20 SENTRON RCBO, 20 A rated, 30 mA residual, Type A, 6 kA per EN 60898, 10 kA per IEC 60947-2. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"77 mm","Solid":"0.75 ... 35 mm²","Width":"36 mm","Height":"90 mm","Maximum":"1.5 W","Stranded":"0.75 ... 35 mm²","at 30 Cel":"20 A","at 40 Cel":"18.8 A","at 45 Cel":"18.2 A","at 50 Cel":"17.4 A","at 55 Cel":"16.2 A","Halogen-Free":"Yes","Silicon-Free":"Yes","During Storage":"-40 ... +75 °C","Number of poles":"2","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-25 ... +45 °C","Product designation":"RCD-operated circuit breaker","Protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage category":"III","Design of the product":"Instantaneous","Energy limiting class":"3","Number of width units":"2","Type of fault current":"A","Number of poles / Note":"1P+N","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","circuit-breaker / Design":"5SU9","Current / at AC / rated value":"20 A","Tripping characteristic class":"C","acc. to EN 60898 / rated value":"6 kA","For Testing Equipment / Minimum":"195 V","Position / of power supply cord":"Either top or bottom","Number of poles / with protection":"1","acc. to IEC 60947-2 / rated value":"10 kA","Product feature / Touch protection":"Yes","Supply voltage frequency / rated value":"50 Hz","Tripping residual current / rated value":"30 mA","Influence of the surrounding temperature":"Max. 95% humidity","Surge current resistance / at (8/20) μs":"1 kA","Tightening torque / with screw-type terminals":"2.5 ... 3 N·m","Product function / neutral conductor switching":"Yes","Mechanical service life (switching cycles) / typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/79f6610cfebb3bc98ed563eb1e55c601.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629403&mlfb=5SU9356-7KP20","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9356-7KP20/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 5SU9356-7KP20?","answer":"The depth is 77 mm, with an installation depth of 70 mm."},{"question":"What conductor sizes does 5SU9356-7KP20 accept?","answer":"It accepts solid and stranded conductors from 0.75 mm² up to 35 mm²."},{"question":"Will 5SU9356-7KP20 drop into a panel specified around 5SL6563-7BB without rewiring?","answer":"Both are 36 mm wide, 2-pole RCBOs with similar ratings, but the 5SU9 series uses a different internal architecture and the busbar comb pattern may differ — verify the terminal layout and busbar compatibility before substituting."},{"question":"Where can I buy 5SU9356-7KP20?","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/5SU9356-7KP20","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/5SU9356-7KP20 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}}