{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1656-0KK16","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1656-0KK16","canonicalUrl":"https://aoctrl.com/siemens/5SU1656-0KK16","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1656-0KK16","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1656-0KK16 RCBO, 2-pole (1P+N), 16 A rated at 30 °C, B tripping characteristic, AC residual current type, 6 kA per EN 60898, 15 kA per IEC 60947-2.","salesMarkdown":"The Siemens 5SU1656-0KK16 is a 2-pole (1P+N) SENTRON RCBO — a combined miniature circuit breaker and residual current device in a single 36 mm wide (2 MW) module. It protects a 230/240 V AC circuit at 50 Hz, rated 16 A at 30 °C with a B tripping characteristic, and detects AC residual currents. That 15 kA rating gives you headroom in a sub-distribution board fed by a larger transformer — a common spec for packaging lines and conveyor systems. Feed can come from top or bottom — no orientation restriction. Installation depth is 70 mm into the distribution board. ## Thermal derating — what the numbers mean In a warm panel — say 50 °C — the continuous current drops to 14.4 A. At 70 °C it's 12.32 A. If you're packing this RCBO next to other heat sources in a sealed enclosure, use the 50 °C or 60 °C column for your load calculation, not the 30 °C headline number. Construction is halogen-free and silicon-free — relevant if the panel goes into a clean-room or semiconductor-adjacent environment where outgassing matters.","metaTitle":"Siemens 5SU1656-0KK16 SENTRON RCBO, 2-pole 16A B-curve 30mA","metaDescription":"Siemens 5SU1656-0KK16 SENTRON RCBO, 2-pole 1P+N, 16A rated at 30°C, B-curve, AC residual current type. 6kA per EN 60898, 15kA per IEC 60947-2. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"77 mm","Width":"36 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"2","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Operating Frequency":"50 Hz","Product Designation":"RCBO","acc. to IEC 81346-2":"F","at AC / rated value":"230/240 V","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Instantaneous","Residual Current Type":"AC","Number Of Poles / Note":"1P+N","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","Weight / With Packaging":"276 g","at 30 °C / rated value":"16 A","at 40 °C / rated value":"15.2 A","at 45 °C / rated value":"14.88 A","at 50 °C / rated value":"14.4 A","at 55 °C / rated value":"13.92 A","at 60 °C / rated value":"13.6 A","at 65 °C / rated value":"12.96 A","at 70 °C / rated value":"12.32 A","Number Of Modular Width Units":"2","Tripping Characteristic Class":"B","acc. to EN 60898 / rated value":"6 kA","For Testing Equipment / Minimum":"100 V","Position / Of Power Supply Cord":"Either top or bottom","Number Of Poles / With Protection":"1","acc. to IEC 60947-2 / rated value":"15 kA","Product Feature / Touch Protection":"Yes","Tripping Fault Current / Rated Value":"300 mA","Supply Voltage Frequency / Rated Value":"50 Hz","Influence Of The Surrounding Temperature":"Max. 95% humidity","Surge Current Resistance / At (8/20) μS":"1 kA","operational current / at AC / rated value":"16 A","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/73fc2b1894deb4e566a2f4cfadcc78fe.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=101958&mlfb=5SU1656-0KK16","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1656-0KK16/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of 5SU1656-0KK16?","answer":"It's a 2-pole 1P+N RCBO rated 16 A at 30 °C, B-curve, AC residual current type, 230/240 V AC, 50 Hz. Breaking capacity is 6 kA per EN 60898 and 15 kA per IEC 60947-2."},{"question":"Where can I buy 5SU1656-0KK16?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Contact us for current availability and pricing at quote time."},{"question":"What is the width and depth of 5SU1656-0KK16?","answer":"Width is 36 mm (2 modular units), depth is 77 mm, height is 90 mm. Installation depth into the board is 70 mm."},{"question":"Will 5SU1656-0KK16 drop into a panel specified around 5SY5240-7?","answer":"No — 5SY5240-7 is a different class (MCB only, no residual current protection). The 5SU1656-0KK16 is an RCBO combining overcurrent and residual current protection in one unit. If the panel design calls for a separate RCD and MCB, swapping to this integrated RCBO changes the wiring and DIN layout."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1656-0KK16","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/5SU1656-0KK16 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}}