{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"7SR5421-2AD16-1AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"7SR5421-2AD16-1AA0","canonicalUrl":"https://aoctrl.com/siemens/7SR5421-2AD16-1AA0","factsUrl":"https://aoctrl.com/api/mcp/products/7SR5421-2AD16-1AA0","rawCanonicalId":null},"summary":{"shortDescription":"Transformer protection (2 wdg.) 8 curr. trans., 4 volt. trans. 3 AFD (Arc Flash Detector), 17 BI, 13 BO (incl. 3 HSBO) Standard interface: 1 x USB (front), RS 485 (rear) + 2 x RJ45 interfaces S12 enclosure incl. conformal coating","salesMarkdown":null,"metaTitle":null,"metaDescription":null,"metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["General Purpose Relays"],"specifications":{"Depth":"217.5 mm","Width":"308 mm","Height":"177 mm","Control":"Yes","Monitoring":"Yes","number of LEDs":"28","lifecycle_stage":"current","Three-Pole Tripping":"Yes","Circuit Breaker Test":"Yes","Switching Statistics":"Yes","Vector Step Protection":"Yes","power factor (ANSI 55)":"No","supply voltage / at AC":"100 ... 230 V","supply voltage / at DC":"24 ... 250 V","synchrocheck (ANSI 25)":"Yes","Frame Size Of Enclosure":"S12","Number Of Function Keys":"7","fault locator (ANSI FL)":"No","External Trip Initiation":"Yes","Inrush Current Detection":"Yes","Number Of Parameter Sets":"4","Parameter Set Switchover":"Yes","arc protection (ANSI AFD)":"Yes","Circuit Breaker Monitoring":"Yes","closing lock-out (ANSI 86)":"Yes","Sequence-Of-Events Recorder":"Yes","Type Of Time Synchronization":"Data comms or Digital input","automatic reclosing (ANSI 79)":"No","protocol / is supported / HSR":"Yes","protocol / is supported / PRP":"Yes","Product Feature / Logic Editor":"Yes","Switch On To Fault (ANSI SOTF)":"No","frequency protection (ANSI 81)":"Yes","protocol / is supported / RSTP":"Yes","unbalance protection (ANSI 46)":"Yes","overvoltage protection (ANSI 59)":"Yes","undercurrent protection (ANSI 37)":"Yes","undervoltage protection (ANSI 27)":"Yes","Number Of Current Inputs / Maximum":"8","Number Of Digital Inputs / Maximum":"17","Number Of Voltage Inputs / Maximum":"4","reverse power protection (ANSI 32R)":"Yes","forward power supervision (ANSI 32F)":"Yes","phase-rotation supervision (ANSI 47)":"Yes","trip-circuit supervision (ANSI 74TC)":"Yes","thermal overload protection (ANSI 49)":"Yes","Ambient Temperature / During Operation":"-10 ... +55 °C","directional power monitoring (ANSI 32)":"Yes","Type Of Voltage / Of The Supply Voltage":"AC/DC","protocol / is supported / DNP 3, serial":"Yes","protocol / is supported / IEC 61850-8-1":"Yes","frequency variation protection (ANSI 81R)":"Yes","protocol / is supported / IEC 60870-5-103":"Yes","protocol / is supported / Modbus RTU slave":"Yes","dynamic response value changeover (ANSI 51C)":"Yes","Fault Recording For Analog And Digital Signals":"Yes","circuit breaker failure protection (ANSI 50BF)":"Yes","directional ground fault protection (ANSI 67N)":"Yes","differential protection, transformer (ANSI 87T)":"Yes","ground fault differential protection (ANSI 87N)":"Yes","sensitive ground current protection (ANSI 50Ns)":"No","definite overcurrent-time protection (ANSI 50/50N)":"Yes","dependent overcurrent-time protection (ANSI 51/51N)":"Yes","Product Function / Hardware Configuration Expandable":"No","Product Component / Operating Interface (On The Front)":"Yes","overvoltage protection zero-sequence system (ANSI 59N)":"Yes","voltage-dependent overcurrent-time protection (ANSI 51V)":"Yes","directional overcurrent-time protection, phases (ANSI 67)":"Yes","overvoltage protection negative-sequence system (ANSI 47)":"Yes","overcurrent-time protection negative sequence system (ANSI 46)":"Yes","directional sensitive ground-fault detection for resonant-grounded systems and isolated systems (ANSI 67Ns)":"No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/68ec1f68ca3ea367a62130031c8441cb.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1507599&mlfb=7SR5421-2AD16-1AA0"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/7SR5421-2AD16-1AA0","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/7SR5421-2AD16-1AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}