{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW5072-2AB15","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW5072-2AB15","canonicalUrl":"https://aoctrl.com/siemens/3RW5072-2AB15","factsUrl":"https://aoctrl.com/api/mcp/products/3RW5072-2AB15","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RW5072-2AB15 soft starter, 200-600 VAC, 90 A minimum setting, Class 10A/10E/20E, ATEX/UKEX/IECEx, PROFIBUS/Modbus/EtherNet/IP, screw fixing, 160 x 230 x 282 mm.","salesMarkdown":"## Active production and hazardous-area approvals The 3RW5072-2AB15: CE and UL/CSA approvals are also present, covering European and North American regulatory jurisdictions. Rated 200 to 600 V, covering the common 208 V, 400 V, and 480 V industrial line voltages without a separate tap or transformer. The minimum settable motor current is 90 A, with a minimum load of 15 % relative to the smallest settable Ie — so it will not drop a lightly loaded motor into a hard start. Trip class is selectable between Class 10A (preset), 10E, and 20E per IEC 60947-4-2. Class 10A clears the start within 10 seconds at 7× Ie — this is the standard for most pump and fan starts. ## Fieldbus connectivity and soft-start algorithms Onboard PROFIBUS, Modbus RTU, Modbus TCP, and EtherNet/IP mean the starter talks directly to the PLC without an external gateway — the commissioning engineer maps the control word and status word into the drive profile, not a generic Modbus map. PROFIenergy is supported when used with the PROFINET communication module. Soft Torque, Voltage Ramp, and Pump Ramp Down are built in — no option card needed. The analog output defaults to 4-20 mA but can be parameterised to 0-10 V via the High Feature HMI. Auto-reset and remote reset (by cycling control supply voltage) are standard. ## Mounting and thermal derating Screw fixing to the back panel, not DIN rail — the 160 mm width × 230 mm height × 282 mm depth requires a dedicated mounting footprint. Clearance requirements: 100 mm upwards, 75 mm downwards, 10 mm forwards, 5 mm at the sides, 0 mm backwards — the minimum side gap is tight, but the top and bottom gaps must be respected for convection airflow. Shock resistance is 15 g / 11 ms, dropping to 12 g / 11 ms if contact lifting is a concern.","metaTitle":"Siemens 3RW5072-2AB15 Soft Starter, 200-600 V, ATEX","metaDescription":"Siemens 3RW5072-2AB15 soft starter, 200-600 VAC, ATEX/UKEX/IECEx approved, Class 10A/10E/20E per IEC 60947-4-2, PROFIBUS/Modbus/EtherNet/IP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Soft Starters"],"specifications":{"ATEX":"Yes","UKEX":"Yes","Depth":"282 mm","IECEx":"Yes","Width":"160 mm","title":"3RW5072-2AB15","Height":"230 mm","Minimum":"90 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 / 10E (preset) / 20E; 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 210 A, 110-250 V AC Spring-loaded terminals Analog output","CSA approval":"Yes","Remote Reset":"Yes; By turning off the control supply voltage","Voltage Ramp":"Yes","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","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":"spring-loaded terminals","Not Parameterizable":"2","Product Designation":"Soft starter","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":"210 A","at 50 °C rated value":"186 A","at 60 °C rated value":"170 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":"16 W","at 50 °C after startup":"13 W","at 60 °C after startup":"11 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":"7.3 kg","at 40 °C during startup":"2 237 W","at 50 °C during startup":"1 867 W","at 60 °C during startup":"1 637 W","For Control Circuit Solid":"2x (0.25 ... 1.5 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":"2","During Storage And Transport":"-40 ... +80 °C","Type Of The Motor Protection":"Electronic, tripping in the event of thermal overload of the motor","Via Software Parameterizable":"No","at DC-13 at 24 V rated value":"1 A","Adjustable Current Limitation":"Yes","Substance Prohibitance (Date)":"09/23/2019","at AC-15 at 250 V rated value":"3 A","is supported HMI-High Feature":"Yes","of standard HMI module usable":"3RW5980-0HS01","Insulation Voltage Rated Value":"600 V","Ramp-Down Time Of Soft Starter":"0 ... 20 s","at 230 V at 40 °C rated value":"55 kW","at 400 V at 40 °C rated value":"110 kW","at 500 V at 40 °C rated value":"132 kW","Width Of Connection Bar Maximum":"35 mm; with connection cover 3RT1966-4EA1 maximum length 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":"2x3NA3354-6; 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":"60 hp","at 220/230 V at 50 °C rated value":"60 hp","at 460/480 V at 50 °C rated value":"150 hp","at 575/600 V at 50 °C rated value":"150 hp","of circuit breaker usable at 400 V":"3VA2440-7MN32-0AA0; Type of assignment 1, Iq = 65 kA","of circuit breaker usable at 500 V":"3VA2440-7MN32-0AA0; Type of assignment 1, Iq = 65 kA","at the digital inputs at AC maximum":"1 000 m","of communication module Ethernet/IP":"3RW5980-0CE00","Design Of The Overvoltage Protection":"Varistor","Surge Voltage Resistance Rated Value":"6 kV","of line contactor usable up to 480 V":"3RT1064","of line contactor usable up to 690 V":"3RT1064","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","at AWG cables for control circuit solid":"2x (24 ... 16)","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":"90 A","At Rotary Coding Switch On Switch Position 2":"98 A","At Rotary Coding Switch On Switch Position 3":"106 A","At Rotary Coding Switch On Switch Position 4":"114 A","At Rotary Coding Switch On Switch Position 5":"122 A","At Rotary Coding Switch On Switch Position 6":"130 A","At Rotary Coding Switch On Switch Position 7":"138 A","At Rotary Coding Switch On Switch Position 8":"146 A","At Rotary Coding Switch On Switch Position 9":"154 A","at AWG cables for main current circuit solid":"2/0 ... 500 kcmil","for DIN cable lug for main contacts stranded":"50 ... 240 mm²","At Rotary Coding Switch On Switch Position 10":"162 A","At Rotary Coding Switch On Switch Position 11":"170 A","At Rotary Coding Switch On Switch Position 12":"178 A","At Rotary Coding Switch On Switch Position 13":"186 A","At Rotary Coding Switch On Switch Position 14":"194 A","At Rotary Coding Switch On Switch Position 15":"202 A","At Rotary Coding Switch On Switch Position 16":"210 A","Type Of Voltage Of The Control Supply Voltage":"AC","Holding Current In Bypass Operation Rated Value":"105 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":"70 ... 240 mm²","Relative Negative Tolerance Of The Operating Voltage":"-15 %","Relative Positive Tolerance Of The Operating Voltage":"10 %","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","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 Manual","For Auxiliary And Control Contacts With Screw-Type Terminals":"7 ... 10.3 lbf·in","For Control Circuit Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","For Main Contacts For Box Terminal Using Both Clamping Points Solid":"min. 2x 70 mm², max. 2x 240 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 Main Contacts For Box Terminal Using Both Clamping Points Stranded":"min. 2x 70 mm², max. 2x 240 mm²","For Main Contacts For Box Terminal Using The Back Clamping Point Solid":"120 ... 240 mm²","of back-up R fuse link for semiconductor protection usable up to 690 V":"3NE3 333; Type of coordination 2, Iq = 65 kA","For Main Contacts For Box Terminal Using The Front Clamping Point Solid":"95 ... 300 mm²","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 %","For Main Contacts For Box Terminal Using The Back Clamping Point Stranded":"120 ... 240 mm²","of full range R fuse link for semiconductor protection usable up to 690 V":"3NE1 230-2; Type of coordination 2, Iq = 65 kA","For Main Contacts For Box Terminal Using The Front Clamping Point Stranded":"95 ... 300 mm²","at AWG cables for control circuit finely stranded with core end processing":"2x (24 ... 16)","at AWG cables for main contacts for box terminal using the back clamping point":"250 ... 500 kcmil","For Main Contacts For Box Terminal Using Both Clamping Points Finely Stranded With Core End Processing":"min. 2x 50 mm², max. 2x 185 mm²","For Main Contacts For Box Terminal Using Both Clamping Points Finely Stranded Without Core End Processing":"min. 2x 50 mm², max. 2x 185 mm²","For Main Contacts For Box Terminal Using The Back Clamping Point Finely Stranded With Core End Processing":"120 ... 185 mm²","For Main Contacts For Box Terminal Using The Front Clamping Point Finely Stranded With Core End Processing":"70 ... 240 mm²","For Main Contacts For Box Terminal Using The Back Clamping Point Finely Stranded Without Core End Processing":"120 ... 185 mm²","For Main Contacts For Box Terminal Using The Front Clamping Point Finely Stranded Without Core End Processing":"70 ... 240 mm²"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/59c3f1c7cb5cf2b335a60fedc167965e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=830729&mlfb=3RW5072-2AB15"},"ai":{"faq":[{"question":"What does the ATEX approval on 3RW5072-2AB15 mean in practice?","answer":"ATEX, UKEX, and IECEx certification are all present on this soft starter. This means it is listed for installation in potentially explosive atmospheres (gas or dust) without requiring an additional external barrier — the starter itself meets the ignition protection requirements. The approvals appear on the nameplate."},{"question":"What trip classes does 3RW5072-2AB15 support?","answer":"It supports Class 10A (preset at factory), Class 10E, and Class 20E per IEC 60947-4-2. Class 10A clears the start within 10 seconds at 7× Ie — suitable for pumps and fans."},{"question":"What fieldbuses are built into 3RW5072-2AB15?","answer":"Onboard PROFIBUS, Modbus RTU, Modbus TCP, and EtherNet/IP are standard — no external gateway needed. PROFIenergy is supported when used with the PROFINET communication module."},{"question":"What are the clearance requirements for mounting 3RW5072-2AB15?","answer":"Screw fixing to the back panel. Clearances: 100 mm upwards, 75 mm downwards, 10 mm forwards, 5 mm at the sides, 0 mm backwards. The top and bottom gaps must be maintained for convection cooling."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW5072-2AB15","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/3RW5072-2AB15 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}}