{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1901-1GA01","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1901-1GA01","canonicalUrl":"https://aoctrl.com/siemens/3RK1901-1GA01","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1901-1GA01","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS AS-Interface overvoltage protection module, 3RK1901-1GA01, IP67, 10kA core-PG / 0.5kA core-core surge ratings, for lightning protection zone 2, standard rail or wall mounting.","salesMarkdown":"The Siemens 3RK1901-1GA01 is an AS-Interface overvoltage protection module designed for lightning protection zone 2, meaning it clamps transients before they reach downstream AS-i nodes. Rated 10 kA on the core-PG path and 0.5 kA core-core, it handles direct lightning-induced surges on the AS-i cable pair without passing the energy through to the slaves. IP67 rated, so the module body and its sealed connections tolerate washdown and outdoor exposure — suitable for food-and-bev lines, conveyor sections, or any area where hose-down cleaning is routine. The module does not require its own AS-Interface address — it sits transparently on the bus, detecting overvoltage events without consuming a node slot. That keeps the address count free for actual sensors and actuators. ## Integration notes Dimensions: 25 mm depth, 45 mm width, 80 mm height. Operating temperature range -25 to +85 °C; storage range -40 to +85 °C. The wide storage span means it can sit in a spare-parts bin in an unheated warehouse without issue. Maximum voltages: core-PG 600 V (aux power) and 700 V (AS-Interface); core-core 40 V (aux) and 50 V (AS-i). These are the withstand limits the module clamps against — not operating voltages.","metaTitle":"Siemens 3RK1901-1GA01 AS-i Overvoltage Protection Module, IP","metaDescription":"Siemens 3RK1901-1GA01 AS-Interface overvoltage protection module, IP67, rated 10kA core-PG / 0.5kA core-core. Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"Depth":"25mm","Width":"45mm","title":"3RK1901-1GA01","Height":"80mm","Core-PG":"10kA","Counter":"No","Core-core":"0.5kA","Addressing":"the module does not need its own AS-Interface address","description":"AS-i overvoltage protection module IP67, for lightning protection zone 2","During Storage":"-40 ... +85°C","lifecycle_stage":"current","During Operation":"-25 ... +85°C","Fastening Method":"standard rail mounting/wall mounting","protection class IP":"IP67","AUX POWER Core-PG max":"600V","Design Of The Product":"overoltage protection modules - modules with special functions","Overvoltage Detection":"Yes","Ground Fault Detection":"No","AUX POWER Core-core max":"40V","AS-Interface Core-PG max":"700V","AS-Interface Core-core max":"50V","reference code acc. to DIN EN 61346-2":"K","protocol is supported AS-Interface protocol":"No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$137.16","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2506c84bc50fd54eb200b0e325c9c833.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=173534&mlfb=3RK1901-1GA01"},"ai":{"faq":[{"question":"What is 3RK1901-1GA01 used for?","answer":"It is an AS-Interface overvoltage protection module for lightning protection zone 2, clamping surges on the AS-i cable pair (10 kA core-PG, 0.5 kA core-core) to protect downstream nodes. It detects overvoltage events and does not require its own AS-i address."},{"question":"Does 3RK1901-1GA01 need an AS-Interface address?","answer":"No. The module does not require its own AS-Interface address — it operates transparently on the bus, so it doesn't consume a node slot."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1901-1GA01","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/3RK1901-1GA01 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}}