{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1656-7KK32","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1656-7KK32","canonicalUrl":"https://aoctrl.com/siemens/5SU1656-7KK32","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1656-7KK32","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCBO, 1P+N, 32 A, 300 mA, Type A, 6 kA, 2 MW, 50 Hz.","salesMarkdown":"It protects a single-phase final subcircuit against both overload/short-circuit (via the C-characteristic magnetic/thermal trip) and earth leakage (via the 300 mA Type A residual current sensor). ## Ratings and their meaning for the buyer Rated at 32 A at 30 °C ambient, the RCBO derates linearly as panel temperature rises: 30.4 A at 40 °C, 28.8 A at 50 °C, 27.2 A at 60 °C, and 24.64 A at 70 °C. If the distribution board runs warm — say 50 °C inside the enclosure — the continuous load must not exceed 28.8 A, not the 32 A nameplate. The 300 mA residual trip threshold is a standard value for general-purpose socket-outlet circuits where a lower 30 mA threshold would cause nuisance tripping from cable capacitance or inrush. Type A detection covers sinusoidal AC and pulsating DC residual currents, which is the minimum requirement for circuits with single-phase rectified loads (e.g., washing machines, LED drivers). The IP20 rating applies only when installed in a distribution board with connected conductors — the device itself is not sealed for exposed installation. Halogen-free and silicon-free materials suit environments where outgassing must be minimized (e.g., clean rooms, medical facilities).","metaTitle":"Siemens SENTRON 5SU1656-7KK32 RCBO, 32 A, 300 mA, Type A, 6","metaDescription":"Siemens SENTRON 5SU1656-7KK32 RCBO, 32 A rated, 300 mA residual current, Type A, 6 kA breaking capacity per EN 60898. Active 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","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":"32 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":"277 g","according to EN 61346-2":"F","at 30 °C / rated value":"32 A","at 40 °C / rated value":"30.4 A","at 45 °C / rated value":"29.76 A","at 50 °C / rated value":"28.8 A","at 55 °C / rated value":"27.84 A","at 60 °C / rated value":"27.2 A","at 65 °C / rated value":"25.92 A","at 70 °C / rated value":"24.64 A","according to IEC 81346-2":"F","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","For Testing Equipment / Minimum":"100 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":"300 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":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2a53f8ffd0d4fb7e1a2b8a19885d8074.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=412384&mlfb=5SU1656-7KK32","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1656-7KK32/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SU1656-7KK32 and how is it quoted?","answer":"This RCBO is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the depth of 5SU1656-7KK32?","answer":"The depth is 77 mm (including the housing and terminals). Installation depth is 70 mm."},{"question":"What is the width of 5SU1656-7KK32?","answer":"The width is 36 mm, which corresponds to 2 modular units (MW) on a standard DIN-rail panel."},{"question":"Will 5SU1656-7KK32 drop into a panel specified around 5SL6550-7BB without rewiring?","answer":"Both are 2-module-wide RCBOs on the same DIN-rail footprint, so the physical fit is identical. However, the 5SL6550-7BB is a 50 A B-curve device; the 5SU1656-7KK32 is a 32 A C-curve. The wiring may be sized for 50 A, and the trip characteristic differs. Rewiring or circuit re-evaluation is required."},{"question":"What compliance documentation does Siemens provide for 5SU1656-7KK32?","answer":"The RCBO is designed to EN 60898 (breaking capacity 6 kA) and carries the SENTRON brand. It is halogen-free and silicon-free. For specific RoHS, REACH, or UL documentation, request the manufacturer's declaration from your distributor at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1656-7KK32","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/5SU1656-7KK32 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}}