{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1205-0BQ24-0AA3","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1205-0BQ24-0AA3","canonicalUrl":"https://aoctrl.com/siemens/3RK1205-0BQ24-0AA3","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1205-0BQ24-0AA3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RK1205-0BQ24-0AA3 — now in phase-out and being discontinued. Supplied from remaining channel stock; full specifications, lifecycle and same-series options are below.","salesMarkdown":"## Overview The 3RK1205-0BQ24-0AA3 is a Siemens ASIsafe compact module K45F LS Type 4 (light sensor) for testing semiconductor outputs, with 2 electronic inputs and sensor supply drawn from the AS-i bus. Rated for 31.5 V DC supply and IP67, it mounts on standard rail or wall using a separate mounting plate (3RK1901-2EA00 or 3RK1901-2DA00, ordered separately). This module has two electronic inputs for light-sensor signals, with sensor supply from the AS-i loop. The semiconductor output test function checks the switching element on the output side; the module reports status via green/red and yellow LEDs on the front addressing socket. Maximum current carrying capacity on the sensor supply is 200 mA, enough for a single light sensor or a small photoelectric pair. ## Applications The K45F LS Type 4 is used in AS-i safety networks where a light sensor must be integrated into the safe I/O loop — common on packaging lines, conveyor gates, and press guarding where the sensor detects presence through a light curtain or retro-reflective beam. IP67 rating allows placement directly on the machine frame or in wet washdown zones without an enclosure.","metaTitle":"Siemens 3RK1205-0BQ24-0AA3 ASIsafe Compact Module K45F LS Type 4","metaDescription":"Siemens 3RK1205-0BQ24-0AA3 ASIsafe compact module K45F LS Type 4 (light sensor), 2 inputs, IP67, 31.5 V DC, phase-out since 2022-10-01.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"Depth":"34mm","Width":"45mm","Height":"80mm","Sensors":"electronic input","Addressing":"front addressing socket","ID/ID2 code":"B/1","During Storage":"-40 ... +85°C","Ground terminal":"Flat male tab, 2.8mm width","display of I/Os":"yellow LED","lifecycle_stage":"current","During Operation":"-25 ... +70°C","Fastening Method":"standard rail mounting/wall mounting using mounting plate for K45 compact module","I/O configuration":"0","Number I/O sockets":"3","protection class IP":"IP67","switching level Low":"5","switching level High":"15","Design Of The Product":"Safe compact module K45F LS, TYPE4","Type Of Voltage Of Output Voltages":"DC","display of AS-Interface/diagnostics":"green/red LED","AS interface total current input max":"270mA","reference code according to EN 61346-2":"A","Number Of Digital Inputs Safety-Related":"2","protocol is supported AS-Interface protocol":"Yes","Input Current At Digital Input For Signal <1> Minimum":"5mA","Type Of Electrical Connection Of The Inputs And Outputs":"M12","operating voltage according to AS-Interface spezification":"26.5 ... 31.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$175.26","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=199678&mlfb=3RK1205-0BQ24-0AA3","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RK1205-0BQ24-0AA3/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1205-0BQ24-0AA3","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/3RK1205-0BQ24-0AA3 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}}