{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1356-7KK08","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1356-7KK08","canonicalUrl":"https://aoctrl.com/siemens/5SU1356-7KK08","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1356-7KK08","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1356-7KK08 RCBO, 1P+N, 8 A rated, C-curve, 30 mA residual current, 6 kA breaking capacity per EN 60898, 2 modular width units.","salesMarkdown":"It's a 1P+N, 2-pole unit rated 8 A with a C-curve tripping characteristic and a 30 mA residual current trip threshold, so it protects a single-phase line against overloads, short circuits (6 kA per EN 60898), and ground faults in one 2-module-width (36 mm) package. The 8 A rating is at 30 °C; at 40 °C it derates to 7.52 A, at 50 °C to 6.96 A, and at 70 °C to 5.84 A. If the panel runs hot, the actual load must stay under the derated figure — the C-curve magnetic trip still holds at 5–10× In for motor-start or lighting inrush, but the thermal element responds to the ambient-adjusted current. The 30 mA residual-current threshold is Type A, meaning it detects pulsating DC fault currents as well as sinusoidal AC — covers most modern electronics and variable-speed drives on the protected circuit. At 2 modular width units (36 mm wide, 77 mm deep, 90 mm high), it snaps onto a DIN rail and fits a standard 18 mm-per-module distribution board. ## Where it goes in a panel This RCBO is designed for a DIN-rail distribution board — residential, commercial, or light industrial sub-distribution. The IP20 rating applies only when the board is installed with connected conductors, so it's not for wet or outdoor locations without an enclosure. Pollution degree 2 (normal, non-conductive) and overvoltage category III (fixed installation) confirm it's a distribution-board component, not a machine-tool or outdoor device.","metaTitle":"Siemens 5SU1356-7KK08 SENTRON RCBO, 8A C-curve 30mA 6kA 2MWU","metaDescription":"Siemens 5SU1356-7KK08 SENTRON RCBO, 1P+N, 8A rated, C-curve, 30mA residual current, 6kA breaking capacity per EN 60898, 2MWU. Current production. Sourced to order against RFQ.","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","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Operating Frequency":"50 Hz","Product Designation":"RCBO","at AC / rated value":"8 A","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Instantaneous","Residual Current Type":"A","Energy Limitation Class":"3","Weight / With Packaging":"271 g","according to EN 61346-2":"F","at 30 °C / rated value":"8 A","at 40 °C / rated value":"7.52 A","at 45 °C / rated value":"7.28 A","at 50 °C / rated value":"6.96 A","at 55 °C / rated value":"6.48 A","at 60 °C / rated value":"6.48 A","at 65 °C / rated value":"6.16 A","at 70 °C / rated value":"5.84 A","according to IEC 81346-2":"F","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","For Testing Equipment / Minimum":"195 V","Position / Of Power Supply Cord":"Either top or bottom","Number Of Poles / With Protection":"1","according to EN 60898 / rated value":"6 kA","Tripping Fault Current / Rated Value":"30 mA","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","Influence Of The Surrounding Temperature":"Max. 95% humidity","Surge Current Resistance / At (8/20) μS":"1 kA","Type Of Voltage / Of The Operating Voltage":"AC","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$39.37","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/af824e151a2b7e5e3678662f456b6364.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=353451&mlfb=5SU1356-7KK08","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1356-7KK08/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of the 5SU1356-7KK08?","answer":"6 kA rated value according to EN 60898, suitable for distribution boards where the prospective short-circuit current stays under that level."},{"question":"What residual current type is this RCBO?","answer":"Type A — detects pulsating DC fault currents as well as sinusoidal AC, covering modern electronics and drives on the protected circuit."},{"question":"Where can I buy the 5SU1356-7KK08 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"Will the 5SU1356-7KK08 drop into a panel specified around the 5SY7210-7CC without rewiring?","answer":"No — the 5SU1356-7KK08 is a 1P+N RCBO with a 30 mA residual-current element and a 6 kA breaking capacity, while the 5SY7210-7CC is a different class of device. Panel wiring and protection coordination would need to be reviewed; they are not direct form-fit-function replacements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1356-7KK08","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/5SU1356-7KK08 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}}