{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1656-7KK16","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1656-7KK16","canonicalUrl":"https://aoctrl.com/siemens/5SU1656-7KK16","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1656-7KK16","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1656-7KK16 RCBO, 1P+N, 16 A at 30 °C, C-curve, 6 kA (EN 60898), 15 kA (IEC 60947-2), 2 MW, halogen-free.","salesMarkdown":"The Siemens 5SU1656-7KK16 is a SENTRON RCBO — a combined residual-current device and miniature circuit breaker in a 1P+N, 2-pole package. Rated 16 A at 30 °C with a C tripping curve, it handles overcurrents and earth faults in a single 36 mm wide module. The interrupting capacity is 6 kA per EN 60898 and 15 kA per IEC 60947-2, giving it a solid safety margin for residential and light commercial distribution boards. The 16 A rating holds at 30 °C ambient; above that, the current must be derated stepwise: 15.2 A at 40 °C, 14.4 A at 50 °C, 13.6 A at 60 °C, and 12.32 A at 70 °C. The device is 36 mm wide (2 modular width units), 77 mm deep, with an installation depth of 70 mm, and can be mounted in any position. Halogen-free and silicon-free construction, which reduces toxic gas emission in a fire and avoids silicone contamination in sensitive environments like clean rooms or coating lines. The insulation voltage is rated 264 V, surge voltage resistance 4 000 V.","metaTitle":"Siemens 5SU1656-7KK16 SENTRON RCBO, 16 A C-curve, 6 kA","metaDescription":"Siemens SENTRON 5SU1656-7KK16 RCBO, 1P+N, 16 A at 30 °C, C-curve, 6 kA (EN 60898), 15 kA (IEC 60947-2). Halogen-free, silicon-free, IP20. Current lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","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","Design Of Pole":"1P+N","Number Of Poles":"2","lifecycle_stage":"current","Mounting Position":"any","at AC rated value":"230/240 V","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Operating Frequency":"50 Hz","Product Designation":"RCBO","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Instantaneous","Weight With Packaging":"267 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","Energy Limitation Class":"3","For Testing Equipment Minimum":"100 V","Number Of Modular Width Units":"2","Position Of Power Supply Cord":"Either top or bottom","Tripping Characteristic Class":"C","Number Of Poles With Protection":"1","according to EN 60898 rated value":"6 kA","insulation voltage (Ui) rated value":"264 V","Supply Voltage Frequency Rated Value":"50 Hz","Surge Voltage Resistance Rated Value":"4 000 V","according to IEC 60947-2 rated value":"15 kA","Surge Current Resistance At (8/20) μS":"1 kA","Influence Of The Surrounding Temperature":"Max. 95% humidity","Type Of Voltage Of The Operating Voltage":"AC","Mechanical Service Life (Operating Cycles) Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$114.26","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b177faa57909d7b7c4e7685162e7d813.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=120623&mlfb=5SU1656-7KK16","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1656-7KK16/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to 5SU1656-7KK16?","answer":"The 5SL4363-7 is a different series — it is an MCB only, not an RCBO. The 5SU1656-7KK16 combines overcurrent and residual-current protection in one unit, so substituting a 5SL would require adding a separate RCD and rewiring the protection scheme."},{"question":"Will 5SU1656-7KK16 drop into a panel specified around 5SL4363-7?","answer":"No — the 5SL4363-7 is an MCB without residual-current protection. The 5SU1656-7KK16 is an RCBO, so it requires a neutral connection and occupies the same 36 mm width, but the protection scheme differs. You would need to re-evaluate the RCD coordination."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1656-7KK16","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/5SU1656-7KK16 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}}