{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1656-1KK32","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1656-1KK32","canonicalUrl":"https://aoctrl.com/siemens/5SU1656-1KK32","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1656-1KK32","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCBO, 2-pole, 32 A rated, C-curve, 30 mA AC type residual current, 6 kA per EN 60898 / 15 kA per IEC 60947-2, 2 MW, IP20.","salesMarkdown":"The Siemens SENTRON 5SU1656-1KK32 is a 2-pole RCBO (residual current circuit breaker with overcurrent protection) rated 32 A at 30 °C with a C-curve tripping characteristic and 30 mA AC-type residual current detection. The AC-type residual current element detects sinusoidal AC earth faults only; specify a type A or B variant if pulsed DC or smooth DC residual currents are present on the circuit. Thermal derating is published from 30 °C through 70 °C: at 40 °C the continuous rating drops to 30.4 A, at 50 °C to 28.8 A, and at 70 °C to 24.64 A. For a panel ambient of 45 °C, the usable load is 29.76 A — factor this into the circuit design rather than relying on the 30 °C nameplate. Mounting position is unrestricted — horizontal, vertical, or inverted — which simplifies layout in crowded enclosures. Supply can enter from either top or bottom, and the device is touch-protected per the product feature. IP20 applies when the distribution board is installed with conductors connected. Rated for 50 Hz operating frequency only. Halogen-free and silicon-free construction supports use in controlled-atmosphere zones.","metaTitle":"Siemens 5SU1656-1KK32 SENTRON RCBO, 2P, 32 A, C-curve, 30 mA","metaDescription":"Siemens SENTRON 5SU1656-1KK32 RCBO, 2-pole, 32 A rated, C-curve, 30 mA AC residual current, 6 kA (EN 60898) / 15 kA (IEC 60947-2). Current lifecycle. Sourced to order against RFQ.","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":"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":"AC","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","Weight / With Packaging":"275 g","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","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","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","insulation voltage (Ui) / rated value":"264 V","Supply Voltage Frequency / Rated Value":"50 Hz","Surge Voltage Resistance / Rated Value":"4 000 V","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","Product Component / 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/d1c98d18f9ed1379e9e23dfb1e9d33b7.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=211769&mlfb=5SU1656-1KK32","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1656-1KK32/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1656-1KK32","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/5SU1656-1KK32 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}}