{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1301-0CB20-0AB4","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1301-0CB20-0AB4","canonicalUrl":"https://aoctrl.com/siemens/3RK1301-0CB20-0AB4","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1301-0CB20-0AB4","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC SIRIUS 3RK1301-0CB20-0AB4 direct-on-line motor starter, PROFINET + PROFIBUS DP, adjustable Class 10/10A, 50 kA SCCR at 400 V, 24 V DC control, 150 × 65 × 290 mm.","salesMarkdown":"This is a Siemens SIMATIC SIRIUS 3RK1301-0CB20-0AB4 direct-on-line motor starter — a self-contained unit that combines a contactor, overload relay, and fieldbus interface into one package. It sits on a terminal module via pluggable connection, so you mount the base wiring once and swap the control module without touching the power terminations. It's built for motor control in distributed automation schemes — think conveyor sections, pump stations, or small machine cells where you want PROFINET or PROFIBUS DP right at the motor starter rather than running individual control wires back to a central cabinet. The adjustable trip class — Class 10 and 10A — is what decides whether this starter protects your motor during a stall or start. Class 10A is a tighter band, tripping faster, meant for motors with short acceleration times or where you need closer thermal protection. You set it via a rotary dial on the module. Pollution degree 3 at 400 V and degree 2 at 500 V (per IEC 60664 / IEC 61131) means the creepage and clearance distances are designed for conductive dust or occasional condensation — typical inside an unsealed panel in a factory environment. At 500 V you need a cleaner environment (degree 2) to maintain the same insulation margin. The starter snaps onto a terminal module — the screw-type terminals for the main power infeed stay on the base, so you can pull the control module for service or replacement without disturbing the motor cables. The energy bus on the backplane daisy-chains power to adjacent starters in the same row, saving a terminal per unit. It mounts in any orientation — vertical or horizontal — and its footprint is 65 mm wide by 150 mm deep by 290 mm tall. That's a narrow slice of DIN rail, leaving room for other components in a crowded enclosure. The 24 V DC control supply has a range of 20.4 to 28.8 V, so it's tolerant of a sagging bus but not a 12 V system. Two digital inputs are available on the control module for local pushbuttons or limit switches, and the I/O mapping gives you 2 bytes each for inputs and outputs over the fieldbus — enough for start/stop, fault feedback, and a couple of status bits.","metaTitle":"Siemens SIMATIC 3RK1301-0CB20-0AB4 Motor Starter, Class 10/1","metaDescription":"Siemens SIMATIC 3RK1301-0CB20-0AB4 direct motor starter. PROFINET & PROFIBUS DP, adjustable Class 10/10A trip, 50 kA SCCR at 400 V. Current production. Sourced to order against RFQ","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"Depth":"150 mm","Width":"65 mm","at DC":"24 ... 24 V","title":"3RK1301-0CB20-0AB4","Height":"290 mm","Trip Class":"CLASS 10 and 10A adjustable","description":"DSS1E-X for ET200S High Feature direct soft starter Setting range 2.4...16 A Electronic switching Electronic protection AC-3, up to 7.5 kW / 400 V expandable for Brake control module 2DI module Motor starter ES Circuit breaker signaling parameterizable DPV 1-capable PROFIENERGY-capable to PN","Direct Start":"Yes","Of The Inputs":"2 byte","During Storage":"-40 ... +70 °C","Of The Outputs":"2 byte","lifecycle_stage":"current","During Operation":"0 ... 60 °C","During Transport":"-40 ... +70 °C","Fastening Method":"pluggable on terminal module","Reverse Starting":"No","Shock Resistance":"5g / 11 ms","Mounting Position":"vertical, horizontal","PROFINET protocol":"Yes","at DC rated value":"20.4 ... 28.8 V","Product Brand Name":"SIMATIC","Type Of Assignment":"1","Degree Of Pollution":"3 at 400 V, 2 at 500 V according to IEC60664 (IEC61131)","Maximum Permissible":"28.8 V","Minimum Permissible":"20.4 V","Product Designation":"Motor starters","PROFIBUS DP protocol":"Yes","Vibration Resistance":"2g","at 400 V rated value":"50 kA","Design Of The Product":"direct starter","For Main Energy Infeed":"screw-type terminals","supply voltage 1 at DC":"24 ... 24 V","Number Of Digital Inputs":"2","For Digital Input Signals":"0","For Digital Output Signals":"0","brake control with 24 V DC":"No","1 For Digital Input Signals":"using control module","2 For Digital Input Signals":"using control module","brake control with 180 V DC":"No","brake control with 230 V AC":"No","brake control with 500 V DC":"No","For Main Energy Transmission":"via energy bus","For Supply Voltage Line-Side":"via backplane bus","Type Of The Motor Protection":"solid-state","at AC-3 at 400 V rated value":"16 A","For Load-Side Outgoing Feeder":"Screw-type terminals","Operating Voltage Rated Value":"200 ... 400 V","Substance Prohibitance (Date)":"05/28/2009","supports PROFIenergy shutdown":"Yes","Digital Inputs Parameterizable":"Yes","For Communication Transmission":"via backplane bus","Insulation Voltage Rated Value":"500 V","Of The Communication Interface":"via backplane bus","Design Of The Switching Contact":"solid-state","Digital Outputs Parameterizable":"No","For Supply Voltage Transmission":"via backplane bus","Operating Frequency 1 Rated Value":"50 Hz","Operating Frequency 2 Rated Value":"60 Hz","Design Of Short-Circuit Protection":"circuit-breakers","Product Function Bus Communication":"Yes","Product Function On-Site Operation":"Yes","Relative Humidity During Operation":"5 ... 95 %","Product Component Motor Brake Output":"Yes","Surge Voltage Resistance Rated Value":"6 kV","supports PROFIenergy measured values":"Yes","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","due to burst according to IEC 61000-4-4":"2 kV on voltage supply, inputs and outputs","reference code according to IEC 81346-2":"Q","Number Of Poles For Main Current Circuit":"3","control supply voltage at DC rated value":"20.4 ... 28.8 V","Product Function Short Circuit Protection":"Yes","design of the interface PROFINET protocol":"Yes","with low demand rate according to SN 31920":"100 FIT","protocol is supported AS-Interface protocol":"No","with high demand rate according to SN 31920":"75 %","operating power at AC-3 at 400 V rated value":"7.5 kW","At The Manufacturer-Specific Device Interface":"plug","Type Of Voltage Of The Control Supply Voltage":"DC","EMC emitted interference according to IEC 60947-1":"CISPR11, ambience A (industrial sector)","Product Extension Braking Module For Brake Control":"Yes","Relative Negative Tolerance Of The Operating Frequency":"10 %","Relative Positive Tolerance Of The Operating Frequency":"10 %","Type Of Electrical Connection For Main Current Circuit":"screw-type terminals","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","operating range relative to the operating voltage at AC at 50 Hz":"200 ... 440 V","operating voltage at AC at 60 Hz according to CSA and UL rated value":"480 V","Maximum Permissible Voltage For Safe Isolation Between Main And Auxiliary Circuit":"400 V","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"2.4 ... 16 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$645.16","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/411e186eb5e299719fcf747d92dd3fbe.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=3885&mlfb=3RK1301-0CB20-0AB4"},"ai":{"faq":[{"question":"What is the physical size of this motor starter?","answer":"It measures 65 mm wide, 150 mm deep, and 290 mm tall, fitting a standard DIN-rail footprint."},{"question":"What fieldbus protocols does it support?","answer":"It supports both PROFINET and PROFIBUS DP onboard, with 2 bytes each of input and output data."},{"question":"What trip classes are available and how do I set them?","answer":"It offers adjustable Class 10 and Class 10A protection, selected via a rotary dial on the control module."},{"question":"What is the short-circuit breaking capacity?","answer":"It is rated 50 kA at 400 V, suitable for most industrial distribution panels without additional fusing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1301-0CB20-0AB4","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/3RK1301-0CB20-0AB4 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}}