{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1903-0CC00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1903-0CC00","canonicalUrl":"https://aoctrl.com/siemens/3RK1903-0CC00","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1903-0CC00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC brake control module, 3RK1903-0CC00, 24 V DC supply, 180-500 V operating voltage, pluggable on terminal module.","salesMarkdown":"This SIMATIC 3RK1903-0CC00 is a brake control module from Siemens, designed to handle brake release and engagement on motor-driven axes. The module is pluggable onto a terminal module, so it slots into a SIMATIC ET 200 or similar distributed I/O station without hardwiring the control logic. The 24 V DC supply is the control side — it powers the module's logic and coil drivers. The real work happens on the brake side: the module handles 180-500 V DC or 230 V AC brake coils. That means it's not just a relay; it's a dedicated brake controller that can switch higher-voltage DC brakes common on servo and inverter-fed motors. The 8 kV surge voltage resistance and EMC immunity to IEC 60947-1 severity 3 industrial ambience tell you it's built for noisy plant-floor environments, not a clean control cabinet. Mounts vertically or horizontally, and it's pluggable on a terminal module — so the wiring stays in place when you swap the electronics. Main energy comes via the energy bus, supply voltage and communication both go through the backplane bus. That means no point-to-point wiring for the control signals; the module picks up power and comms from the rack. The screw-type terminals handle the main energy infeed and the load-side outgoing feeder. Dimensions: 15 mm wide, 95 mm deep, 196.5 mm tall — slim enough to fit in a crowded panel.","metaTitle":"Siemens SIMATIC 3RK1903-0CC00 brake control module, 24 V DC,","metaDescription":"Siemens SIMATIC 3RK1903-0CC00 brake control module. 24 V DC supply, 180-500 V operating voltage, pluggable terminal module. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"Depth":"95 mm","Width":"15 mm","at DC":"24 ... 24 V","title":"3RK1903-0CC00","Height":"196.5 mm","description":"XB2 for ET 200S/DS-X/RS-X brake control module 500 V DC, 0.7 A for motors with mechanical brakes","During Storage":"-40 ... +70 °C","lifecycle_stage":"current","During Operation":"0 ... 60 °C","During Transport":"-40 ... +70 °C","Fastening Method":"pluggable on terminal module","Shock Resistance":"5g / 11 ms","Mounting Position":"vertical, horizontal","Product Brand Name":"SIMATIC","Maximum Permissible":"28.8 V","Minimum Permissible":"20.4 V","Vibration Resistance":"2g","For Main Energy Infeed":"screw-type terminals","supply voltage 1 at DC":"24 ... 24 V","Number Of Digital Inputs":"0","brake control with 24 V DC":"No","brake control with 180 V DC":"Yes","brake control with 230 V AC":"Yes","brake control with 500 V DC":"Yes","For Main Energy Transmission":"via energy bus","For Supply Voltage Line-Side":"via backplane bus","For Load-Side Outgoing Feeder":"Screw-type terminals","Operating Voltage Rated Value":"180 ... 500 V","Substance Prohibitance (Date)":"05/01/2012","supports PROFIenergy shutdown":"No","Digital Inputs Parameterizable":"No","For Communication Transmission":"via backplane bus","Of The Communication Interface":"via backplane bus","Digital Outputs Parameterizable":"No","For Supply Voltage Transmission":"via backplane bus","Relative Humidity During Operation":"5 ... 95 %","Surge Voltage Resistance Rated Value":"8 kV","supports PROFIenergy measured values":"No","EMC immunity according to IEC 60947-1":"corresponds to degree of severity 3, ambience A (industrial sector)","Type Of Voltage Of The Supply Voltage":"DC","Number Of Poles For Main Current Circuit":"2","Type Of Voltage Of The Control Supply Voltage":"DC","EMC emitted interference according to IEC 60947-1":"CISPR11, ambience A (industrial sector)","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Type Of Voltage Of The Supply Voltage For Brake Control Required":"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=287994&mlfb=3RK1903-0CC00"},"ai":{"faq":[{"question":"What voltage does the brake control handle?","answer":"The module supports brake control with 180 V DC, 230 V AC, and 500 V DC coils. The operating voltage range is 180-500 V."},{"question":"How is the module powered and communicated?","answer":"The control supply is 24 V DC via the backplane bus. Main energy transmission is through the energy bus, and communication also runs through the backplane bus. The module is pluggable onto a terminal module."},{"question":"What are the physical dimensions?","answer":"Width is 15 mm, depth is 95 mm, and height is 196.5 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1903-0CC00","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/3RK1903-0CC00 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}}