{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1903-1CB00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1903-1CB00","canonicalUrl":"https://aoctrl.com/siemens/3RK1903-1CB00","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1903-1CB00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens Local Safety Modules - accessories, PM-X, 3RK1903-1CB00, for safety circuits, 20.4-28.8 V DC, bus communication, 30 x 196.5 x 117.5 mm.","salesMarkdown":"The Siemens 3RK1903-1CB00 is a PM-X accessory module from the Local Safety Modules line, designed specifically for safety circuits. It serves as a motor starter connection module rated up to safety category 4 per EN 954-1, handling the feedback circuit and infeed protection in a safety-related control system. This module operates on a 20.4 to 28.8 V DC control supply and supports bus communication, making it suitable for integration into a networked safety architecture. It does not include integral short-circuit protection, so upstream protection must be provided in the panel design. Physically, it measures 30 mm wide, 196.5 mm tall, and 117.5 mm deep, and is designed to be plugged onto a TM-X15 S27-01 base module. No UL, CSA, or CE listing is explicitly recorded in the available documentation, so verification against local code requirements is the integrator's responsibility.","metaTitle":"Siemens 3RK1903-1CB00 PM-X Safety Module, 20.4-28.8 V DC","metaDescription":"Siemens 3RK1903-1CB00 PM-X accessory for safety circuits. Rated 20.4-28.8 V DC, bus communication, for motor starter connection up to cat 4 EN 954-1. Current production, available","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"Depth":"117.5 mm","Width":"30 mm","title":"3RK1903-1CB00","Height":"196.5 mm","Rated Value":"20.4 ... 28.8 V","description":"PM-X for motor starter connection module up to safety category 4 EN 954-1 for feedback circuit and infeed protection 15 mm can be plugged onto TM-X15 S27-01","lifecycle_stage":"current","Bus Communication":"Yes","Product Brand Name":"Local Safety Modules - accessories","Product Designation":"PM-X","Design Of The Product":"for safety circuits","Short Circuit Protection":"No","Substance Prohibitance (Date)":"05/01/2012","Type Of Voltage Of The Control Supply Voltage":"DC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"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=286307&mlfb=3RK1903-1CB00"},"ai":{"faq":[{"question":"Where can I buy 3RK1903-1CB00 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — figures are confirmed at quote time."},{"question":"What is 3RK1903-1CB00's listed depth?","answer":"The module has a depth of 117.5 mm, a width of 30 mm, and a height of 196.5 mm."},{"question":"What compliance documentation does this brand provide for 3RK1903-1CB00?","answer":"The module carries a substance prohibition date of 05/01/2012, indicating RoHS compliance from that date. No UL, CSA, or CE listing is explicitly recorded in the available documentation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1903-1CB00","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/3RK1903-1CB00 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}}