{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1156-7KV16","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1156-7KV16","canonicalUrl":"https://aoctrl.com/siemens/5SU1156-7KV16","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1156-7KV16","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1156-7KV16 FI/LS protector, Type A (PSE/SSF), D=70mm, IΔn 10mA, 6kA, 1+N-pole, C 16A.","salesMarkdown":"The Siemens 5SU1156-7KV16 is a combined residual-current device and miniature circuit breaker (FI/LS protector), Type A, rated IΔn 10 mA sensitivity and 6 kA breaking capacity, in a 1+N-pole configuration with a C 16 A trip characteristic. ## Deployment context The 1+N-pole form factor snaps onto DIN rail in a standard distribution board. The Type A (PSE/SSF) classification covers the German PSE/SSF specification for selective earth fault protection — typically installed in sub-distribution boards where the upstream RCD is also Type A and coordination requires a lower IΔn or a time-delay characteristic. The C 16 A curve handles motor inrush and transformer magnetizing currents without nuisance tripping; pair it with a 16 A rated load, not a 20 A circuit.","metaTitle":"Siemens 5SU1156-7KV16 FI/LS Protector Type A, 10mA, 6kA, C 1","metaDescription":"Siemens 5SU1156-7KV16 FI/LS protector Type A (PSE/SSF), 10mA sensitivity, 6kA breaking capacity, 1+N-pole C 16A. Current lifecycle. Sourced to order.","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=193661&mlfb=5SU1156-7KV16","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1156-7KV16/alternatives.json"},"ai":{"faq":[{"question":"What is 5SU1156-7KV16 used for?","answer":"It is a combined RCD and MCB (FI/LS protector) Type A with 10 mA sensitivity, 6 kA breaking capacity, 1+N-pole, C 16 A trip curve — used for personnel and equipment protection in circuits with high earth-leakage risk, such as wet areas or medical locations."},{"question":"Where can I buy 5SU1156-7KV16?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels; availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1156-7KV16","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/5SU1156-7KV16 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}}