{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1354-7RC20","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1354-7RC20","canonicalUrl":"https://aoctrl.com/siemens/5SU1354-7RC20","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1354-7RC20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1354-7RC20 RCBO, 20 A, 2-pole, 2-module, C characteristic, Type A, 30 mA residual current.","salesMarkdown":"## What this RCBO is and what it carries The Siemens 5SU1354-7RC20 is a combined residual current circuit breaker with overcurrent protection (RCBO) from the SENTRON family, rated 20 A with a C tripping characteristic and 30 mA Type A residual current sensitivity. It is a 2-pole device (1P+N) protecting one live conductor, occupying 2 modular width units (36 mm) on a DIN rail. Type A residual current detection catches pulsating DC fault currents, which standard AC-only RCDs miss — common on single-phase rectified loads like switched-mode power supplies or variable-speed drives. ## Breaking capacity and where it fits Rated breaking capacity is 10 kA per EN 60898 and 20 kA per IEC 60947-2 — the higher IEC figure applies when the device is used as a standalone circuit breaker rather than a domestic MCB. Supply voltage is AC at 50 Hz only. IP20 rating applies only when installed in a distribution board with conductors connected — the device itself is not sealed against dust ingress outside the enclosure. Rated insulation voltage is 264 V, surge voltage resistance 4 kV — adequate for residential and light-commercial sub-distribution boards. Ambient temperature range of -40 °C to +75 °C covers most indoor and sheltered outdoor installations; derate the 20 A rating above 40 °C per the manufacturer's thermal curve.","metaTitle":"Siemens 5SU1354-7RC20 SENTRON RCBO, 20 A C-curve, 30 mA Type","metaDescription":"Siemens SENTRON 5SU1354-7RC20 RCBO, 20 A, C characteristic, 30 mA Type A residual current, 2-pole, 2 MW. 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":"70 mm","Width":"36 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Design Of Pole":"1P+N","Number Of Poles":"2","lifecycle_stage":"current","Mounting Position":"any","at AC rated value":"20 A","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","Residual Current Type":"A","Energy Limitation Class":"3","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":"10 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 V","according to IEC 60947-2 rated value":"20 kA","Influence Of The Surrounding Temperature":"Max. 95% humidity","Type Of Voltage Of The Operating Voltage":"AC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/364d27bd3b612d709d71c147a0e6835a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=396877&mlfb=5SU1354-7RC20","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1354-7RC20/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1354-7RC20","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/5SU1354-7RC20 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}}