{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1356-1DA32","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1356-1DA32","canonicalUrl":"https://aoctrl.com/siemens/5SU1356-1DA32","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1356-1DA32","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1356-1DA32 FI/LS protector, Type AC (WS), 30mA rated residual current, 6kA breaking capacity, 1+N-pole, C characteristic 32A, pig-tail connection, 70mm width.","salesMarkdown":"The Siemens 5SU1356-1DA32 is a combined residual-current and miniature circuit breaker (RCBO) — an FI/LS protector in Siemens' 5SU series. It integrates ground-fault and overcurrent protection into a single 1+N-pole unit, sized for a 32 A C-curve thermal-magnetic trip and a 30 mA Type AC residual-current trip. The pig-tail connection on the neutral side simplifies wiring in a standard DIN-rail enclosure, provided the installer observes the manufacturer's torque and strip-length specification. The C-curve (32 A) means the magnetic trip operates between 5× and 10× rated current — 160 A to 320 A — so it tolerates the inrush of motor-driven loads like pumps or compressors without nuisance tripping, provided the branch circuit's starting surge stays within that band. For variable-speed drives, LED drivers, or any load with rectification, a Type A or Type B RCD would be required. The 6 kA breaking capacity (Icn) is the short-circuit rating per IEC 61009-1. If the supply transformer is close enough to push fault current above 6 kA, a limiting MCB or fuse upstream is necessary to keep the let-through energy within the RCBO's rating. ## Deployment context The 70 mm width and DIN-rail mounting profile mean it occupies a standard modular slot in a consumer unit or sub-distribution board. The pig-tail neutral connection requires landing the factory-attached lead on the neutral busbar.","metaTitle":"Siemens 5SU1356-1DA32 FI/LS Protector, 32A C, 30mA, 6kA","metaDescription":"Siemens 5SU1356-1DA32 FI/LS protector, Type AC, 32A C-curve, 30mA sensitivity, 6kA breaking capacity. Lifecycle stage: current. Available to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=172363&mlfb=5SU1356-1DA32","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1356-1DA32/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1356-1DA32","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/5SU1356-1DA32 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}}