{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1656-0KK06","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1656-0KK06","canonicalUrl":"https://aoctrl.com/siemens/5SU1656-0KK06","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1656-0KK06","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCBO, 2-pole 1P+N, 6 A rated, B-curve, AC residual current type, 30 mA sensitivity, 6 kA breaking capacity per EN 60898, 25 kA per IEC 60947-2, 2 MW wide, IP20, current production.","salesMarkdown":"The Siemens 5SU1656-0KK06 is a SENTRON RCBO — a combined residual-current and overcurrent protective device — in a 2-pole 1P+N configuration. It switches the line conductor only, with the neutral passing through the residual-current transformer but not switched. Rated 6 A at 30 °C with a clear thermal derating curve: 5.7 A at 40 °C, 5.4 A at 50 °C, 5.1 A at 60 °C, and 4.62 A at 70 °C. For a panel running at 50 °C ambient, the usable current is 5.4 A — not 6 A. The higher 25 kA figure applies when the device is certified under the industrial standard, giving headroom for high-fault locations like substation secondaries. Mounting position is any orientation. Supply can enter from top or bottom — no mandated orientation. The IP20 rating applies only when the distribution board is installed with connected conductors; the device itself is not sealed against dust ingress without the enclosure. The degree of pollution is 2 (non-conductive pollution that becomes conductive only when condensation occurs), typical for standard indoor distribution boards. Two modular-width units (36 mm) means it occupies the same slot pitch as two single-pole MCBs. The test button requires a minimum 100 V to operate the test circuit — verify the phase-to-neutral voltage exceeds this before relying on the built-in test function during commissioning. The product designation per IEC 81346-2 is F (protective device).","metaTitle":"Siemens 5SU1656-0KK06 SENTRON RCBO, 2-pole 6A B-curve 30mA","metaDescription":"Siemens SENTRON 5SU1656-0KK06 RCBO, 2-pole 1P+N, 6A B-curve, 30mA AC type, 6kA (EN 60898). Current production. Sourced to order. Request quote.","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":"277 g","at 30 °C / rated value":"6 A","at 40 °C / rated value":"5.7 A","at 45 °C / rated value":"5.58 A","at 50 °C / rated value":"5.4 A","at 55 °C / rated value":"5.22 A","at 60 °C / rated value":"5.1 A","at 65 °C / rated value":"4.86 A","at 70 °C / rated value":"4.62 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":"25 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":"6 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/d410a641b98c209d1cb9cb425a7a4a52.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=152020&mlfb=5SU1656-0KK06","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1656-0KK06/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SU1656-0KK06 and how do I get a price?","answer":"The part is sourced and quoted to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time."},{"question":"What is the depth of 5SU1656-0KK06?","answer":"The overall depth is 77 mm; the installation depth (into the panel) is 70 mm."},{"question":"What is the width of 5SU1656-0KK06?","answer":"Width is 36 mm, which corresponds to 2 modular-width units on a DIN rail."},{"question":"What compliance documentation does this RCBO carry?","answer":"The device is halogen-free and silicon-free. It is certified per EN 60898 (6 kA breaking capacity) and IEC 60947-2 (25 kA). Overvoltage category III, pollution degree 2. The design is instantaneous (no time-delay on the residual-current element)."},{"question":"Will 5SU1656-0KK06 drop into a panel specified for 5SU9354-7KK16?","answer":"Both are Siemens SENTRON RCBOs in the 2-pole 1P+N format with 2 MW width, so the mechanical footprint on the DIN rail is the same. However, the 5SU9354-7KK16 is a different order code with potentially different ratings (current, sensitivity, or curve). Verify the specific ratings against the panel schedule before substitution — the mechanical fit alone does not guarantee electrical compatibility."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1656-0KK06","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/5SU1656-0KK06 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}}