{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW5245-6AC15","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW5245-6AC15","canonicalUrl":"https://aoctrl.com/siemens/3RW5245-6AC15","factsUrl":"https://aoctrl.com/api/mcp/products/3RW5245-6AC15","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RW5245-6AC15 soft starter, 135 A minimum, 200-600 V rated voltage, Class 10A/10E/20E, PROFINET/Modbus/EtherNet/IP, UL/CSA/CE, screw fixing, 203 mm depth.","salesMarkdown":"The 3RW5245-6AC15 is a SIRIUS hybrid switching device rated for a minimum motor current of 135 A at a rated voltage of 200 to 600 V. This is the floor for the smallest settable Ie — you size the soft starter to the motor FLA, not the other way around, and the 135 A minimum means it won't reliably start a motor drawing less than about 20 A (15 % of 135 A). Trip class is selectable: CLASS 10A (default), 10E, or 20E per IEC 60947-4-2. Class 10A clears an overload in 10 seconds at 7.2× Ie — standard for most pump and fan starts. Class 20E extends the thermal budget to 20 seconds, useful for high-inertia loads like centrifuges where the start takes longer. Soft torque and pump ramp down are built in, so the acceleration and deceleration profiles can be tuned to avoid water hammer in pumping stations or mechanical shock on conveyor belts. ## Fieldbus and control integration This soft starter ships with PROFINET standard onboard, plus Modbus RTU, Modbus TCP, EtherNet/IP, and PROFIBUS. That means it drops into most common industrial networks without an extra gateway — one cable for control and parameterization. PROFIenergy is supported when used with the PROFINET communication module, allowing energy management during idle phases — relevant for production lines with scheduled stops. The analog output is configurable as 4-20 mA (default) or 0-10 V, parameterizable via the High Feature HMI (not included). This feeds motor current or load data to a PLC or SCADA without a separate transducer. ## Mounting and clearance — what fits in the panel Dimensions are 203 mm depth, 210 mm width, 393 mm height. Mounting is screw fixing to a vertical surface; the unit can be rotated ±90° and tilted ±22.5° front-to-back, so it fits in tight enclosures as long as the orientation doesn't block the cooling airflow. Minimum clearance around the unit: 100 mm above, 75 mm below, 10 mm in front, 5 mm at the sides, and 0 mm behind. The 100 mm top clearance is the critical one — that's where hot air rises; skimping here derates the unit above 40 °C ambient. Approvals include UL, CSA, and CE marking — covers North American and European installations without separate certification paperwork. The shock resistance is 15 g / 11 ms, which is typical for industrial panel-mounted gear — fine for most conveyor and pump applications.","metaTitle":"Siemens 3RW5245-6AC15 SIRIUS Soft Starter, 135 A, 200-600 V","metaDescription":"Siemens 3RW5245-6AC15 SIRIUS soft starter, 135 A minimum, 200-600 V rated voltage, Class 10A/10E/20E, PROFINET/Modbus/EtherNet/IP, UL/CSA/CE, active","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Soft Starters"],"specifications":{"Depth":"203 mm","Width":"210 mm","title":"3RW5245-6AC15","Height":"393 mm","Minimum":"135 A","Upwards":"100 mm","Forwards":"10 mm","PROFIBUS":"Yes","at 50 Hz":"110 ... 250 V","at 60 Hz":"110 ... 250 V","Backwards":"0 mm","Downwards":"75 mm","CE marking":"Yes","Modbus RTU":"Yes","Modbus TCP":"Yes","Trip Class":"CLASS 10A (default) / 10E / 20E; acc. to IEC 60947-4-2; acc. to IEC 60947-4-2","auto-RESET":"Yes","At The Side":"5 mm","EtherNet/IP":"Yes","PROFIenergy":"Yes; in connection with the PROFINET Standard communication module","Rated Value":"200 ... 600 V","Soft Torque":"Yes","UL approval":"Yes","description":"SIRIUS soft starter 200-600 V 315 A, 110-250 V AC Screw terminals Analog output","CSA approval":"Yes","Remote Reset":"Yes; By turning off the control supply voltage","Analog Output":"Yes; 4 ... 20 mA (default) / 0 ... 10 V (parameterizable with High Feature HMI)","Error Logbook":"Yes; Only in conjunction with special accessories","Pump Ramp Down":"Yes","Service Factor":"1","Torque Control":"No","Firmware Update":"Yes","lifecycle_stage":"current","During Operation":"-25 ... +60 °C; Please observe derating at temperatures of 40 °C or above","Fastening Method":"screw fixing","HMI-High Feature":"No","Minimum Load [%]":"15 %; Relative to smallest settable Ie","Product Category":"Hybrid switching devices","Shock Resistance":"15 g / 11 ms, from 12 g / 11 ms with potential contact lifting","Mounting Position":"with vertical mounting surface +/-90° rotatable, with vertical mounting surface +/- 22.5° tiltable to the front and back","PROFINET standard":"Yes","Product Brand Name":"SIRIUS","Degree Of Pollution":"3, acc. to IEC 60947-4-2","For Control Circuit":"screw-type terminals","Not Parameterizable":"2","Product Designation":"Soft starter","Inside-Delta Circuit":"Yes","Starting Voltage [%]":"30 ... 100 %","Stopping Voltage [%]":"50 %; non-adjustable","Vibration Resistance":"15 mm to 6 Hz; 2g to 500 Hz","Ramp-Down (Soft Stop)":"Yes","at 40 °C rated value":"546 A","at 50 °C rated value":"483 A","at 60 °C rated value":"442 A","Communication Function":"Yes","Digital Output Version":"2 normally-open contacts (NO) / 1 changeover contact (CO)","Ramp-Up (Soft Starting)":"Yes","at 40 °C after startup":"107 W","at 50 °C after startup":"96 W","at 60 °C after startup":"89 W","EMC emitted interference":"acc. to IEC 60947-4-2: Class A","For Main Current Circuit":"busbar connection","Number Of Analog Outputs":"1","Number Of Digital Inputs":"1","Weight Without Packaging":"9.9 kg","at 40 °C during startup":"5 350 W","at 50 °C during startup":"4 471 W","at 60 °C during startup":"3 934 W","For Control Circuit Solid":"1x (0.5 ... 4.0 mm²), 2x (0.5 ... 2.5 mm²)","Motor Overload Protection":"Yes; Electronic motor overload protection","Number Of Digital Outputs":"3","Via Software Configurable":"Yes","is supported HMI-Standard":"Yes","Impulse Voltage Rated Value":"6 kV","Intrinsic Device Protection":"Yes","Number Of Controlled Phases":"3","During Storage And Transport":"-40 ... +80 °C","Via Software Parameterizable":"No","at DC-13 at 24 V rated value":"1 A","Adjustable Current Limitation":"Yes","Electromagnetic Compatibility":"in accordance with IEC 60947-4-2","Substance Prohibitance (Date)":"02/15/2018","at AC-15 at 250 V rated value":"3 A","is supported HMI-High Feature":"Yes","of standard HMI module usable":"3RW5980-0HS00","Insulation Voltage Rated Value":"600 V","at 230 V at 40 °C rated value":"90 kW","at 400 V at 40 °C rated value":"160 kW","at 500 V at 40 °C rated value":"200 kW","At Inside-Delta Circuit Minimum":"234 A","Width Of Connection Bar Maximum":"45 mm","Control Supply Voltage Frequency":"50 ... 60 Hz","Operating Measured Value Display":"Yes; Only in conjunction with special accessories","Operating frequency 1 rated value":"50 Hz","Operating frequency 2 rated value":"60 Hz","of high feature HMI module usable":"3RW5980-0HF00","of the gG fuse usable up to 690 V":"2x3NA3365-6; Type of coordination 1, Iq = 65 kA; Type of coordination 1, Iq = 65 kA","Between Main And Auxiliary Circuit":"600 V","Start-Up Ramp Time Of Soft Starter":"0 ... 20 s","at 200/208 V at 50 °C rated value":"75 hp","at 220/230 V at 50 °C rated value":"100 hp","at 460/480 V at 50 °C rated value":"200 hp","at 575/600 V at 50 °C rated value":"250 hp","of circuit breaker usable at 400 V":"3VA2440-7MN32-0AA0; Type of coordination 1, Iq = 65 kA, CLASS 10 ; Type of coordination 1, Iq = 65 kA, CLASS 10","of circuit breaker usable at 500 V":"3VA2440-7MN32-0AA0; Type of coordination 1, Iq = 65 kA, CLASS 10 ; Type of coordination 1, Iq = 65 kA, CLASS 10","At Inside-Delta Circuit Rated Value":"200 ... 600 V","at the digital inputs at AC maximum":"100 m","of communication module Ethernet/IP":"3RW5980-0CE00","Design Of The Overvoltage Protection":"Varistor","Surge Voltage Resistance Rated Value":"6 kV","Current Limiting Value [%] Adjustable":"130 ... 700 %","during storage according to IEC 60721":"1K6 (only occasional condensation), 1C2 (no salt mist), 1S2 (sand must not get inside the devices), 1M4","Between Soft Starter And Motor Maximum":"800 m","Removable Terminal For Control Circuit":"Yes","at AWG cables for control circuit solid":"1x (20 ... 12), 2x (20 ... 14)","during operation according to IEC 60721":"3K6 (no ice formation, only occasional condensation), 3C3 (no salt mist), 3S2 (sand must not get into the devices), 3M6","during transport according to IEC 60721":"2K2, 2C1, 2S1, 2M2 (max. fall height 0.3 m)","of communication module PROFIBUS usable":"3RW5980-0CP00","reference code according to IEC 81346-2":"Q","Blocking Voltage Of The Thyristor Maximum":"1 600 V","Evaluation Of Thermistor Motor Protection":"No","of communication module Modbus RTU usable":"3RW5980-0CR00","of communication module Modbus TCP usable":"3RW5980-0CT00","For Main Contacts With Screw-Type Terminals":"124 ... 210 lbf·in","At Rotary Coding Switch On Switch Position 1":"135 A","At Rotary Coding Switch On Switch Position 2":"147 A","At Rotary Coding Switch On Switch Position 3":"159 A","At Rotary Coding Switch On Switch Position 4":"171 A","At Rotary Coding Switch On Switch Position 5":"183 A","At Rotary Coding Switch On Switch Position 6":"195 A","At Rotary Coding Switch On Switch Position 7":"207 A","At Rotary Coding Switch On Switch Position 8":"219 A","At Rotary Coding Switch On Switch Position 9":"231 A","for DIN cable lug for main contacts stranded":"2x (50 ... 240 mm²)","At Rotary Coding Switch On Switch Position 10":"243 A","At Rotary Coding Switch On Switch Position 11":"255 A","At Rotary Coding Switch On Switch Position 12":"267 A","At Rotary Coding Switch On Switch Position 13":"279 A","At Rotary Coding Switch On Switch Position 14":"291 A","At Rotary Coding Switch On Switch Position 15":"303 A","At Rotary Coding Switch On Switch Position 16":"315 A","Type Of Voltage Of The Control Supply Voltage":"AC","Holding Current In Bypass Operation Rated Value":"100 mA","utilization category according to IEC 60947-4-2":"AC 53a","Product Feature Integrated Bypass Contact System":"Yes","of communication module PROFINET standard usable":"3RW5980-0CS00","Control Supply Current In Standby Mode Rated Value":"30 mA","for DIN cable lug for main contacts finely stranded":"2x (70 ... 240 mm²)","Relative Negative Tolerance Of The Operating Voltage":"-15 %","Relative Positive Tolerance Of The Operating Voltage":"10 %","contact rating of auxiliary contacts according to UL":"R300-B300","Inrush Current By Closing The Bypass Contacts Maximum":"2.2 A","Design Of Short-Circuit Protection For Control Circuit":"4 A gG fuse (Icu=1 kA), 6 A quick-acting fuse (Icu=1 kA), C1 miniature circuit breaker (Icu= 600 A), C6 miniature circuit breaker (Icu= 300 A); Is not part of scope of supply; Is not part of scope of supply","Relative Negative Tolerance Of The Operating Frequency":"-10 %","Relative Positive Tolerance Of The Operating Frequency":"10 %","Installation Altitude At Height Above Sea Level Maximum":"5 000 m; Derating as of 1000 m, see catalog","of the gG fuse usable at inside-delta circuit up to 500 V":"2x3NA3365-6; Type of coordination 1, Iq = 65 kA; Type of coordination 1, Iq = 65 kA","of circuit breaker usable at 400 V at inside-delta circuit":"3VA2580-6HN32-0AA0; Type of coordination 1, Iq = 65 kA, CLASS 10 ; Type of coordination 1, Iq = 65 kA, CLASS 10","of circuit breaker usable at 500 V at inside-delta circuit":"3VA2580-6HN32-0AA0; Type of coordination 1, Iq = 65 kA, CLASS 10 ; Type of coordination 1, Iq = 65 kA, CLASS 10","For Auxiliary And Control Contacts With Screw-Type Terminals":"7 ... 10.3 lbf·in","For Control Circuit Finely Stranded With Core End Processing":"1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.5 mm²)","Relative Negative Tolerance Of The Control Supply Voltage Frequency":"-10 %","Relative Positive Tolerance Of The Control Supply Voltage Frequency":"10 %","Inrush Current Peak At Application Of Control Supply Voltage Maximum":"12.2 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 1":"234 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 2":"255 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 3":"275 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 4":"296 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 5":"317 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 6":"338 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 7":"359 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 8":"379 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 9":"400 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 10":"421 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 11":"442 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 12":"462 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 13":"483 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 14":"504 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 15":"525 A","For Inside-Delta Circuit At Rotary Coding Switch On Switch Position 16":"546 A","of back-up R fuse link for semiconductor protection usable up to 690 V":"3NE3336; Type of coordination 2, Iq = 65 kA ; Type of coordination 2, Iq = 65 kA","Duration Of Inrush Current Peak At Application Of Control Supply Voltage":"2.2 ms","relative negative tolerance of the control supply voltage at AC at 50 Hz":"-15 %","relative negative tolerance of the control supply voltage at AC at 60 Hz":"-15 %","relative positive tolerance of the control supply voltage at AC at 50 Hz":"10 %","relative positive tolerance of the control supply voltage at AC at 60 Hz":"10 %","of full range R fuse link for semiconductor protection usable up to 690 V":"3NE1334-2; Type of coordination 2, Iq = 65 kA ; Type of coordination 2, Iq = 65 kA","Relative Negative Tolerance Of The Operating Voltage At Inside-Delta Circuit":"-15 %","Relative Positive Tolerance Of The Operating Voltage At Inside-Delta Circuit":"10 %"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/822a3ca7da46bf1a3723298cab9bab44.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=830675&mlfb=3RW5245-6AC15"},"ai":{"faq":[{"question":"What fieldbus protocols does 3RW5245-6AC15 support?","answer":"It supports PROFINET standard, Modbus RTU, Modbus TCP, EtherNet/IP, and PROFIBUS onboard. PROFIenergy is available with the PROFINET communication module."},{"question":"What is the minimum motor current for 3RW5245-6AC15?","answer":"The minimum settable motor current is 135 A. The minimum load is 15 % of that, so about 20 A is the practical floor for reliable starting."},{"question":"What approvals does 3RW5245-6AC15 carry?","answer":"It carries UL approval, CSA approval, and CE marking — suitable for North American and European installations."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW5245-6AC15","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/3RW5245-6AC15 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}