{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW5072-2AB05","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW5072-2AB05","canonicalUrl":"https://aoctrl.com/siemens/3RW5072-2AB05","factsUrl":"https://aoctrl.com/api/mcp/products/3RW5072-2AB05","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RW5072-2AB05 SIRIUS soft starter, 90 A minimum operating current, 200-600 V rated voltage, ATEX and IECEx certified, trip class 10A/10E/20E, screw fixing, 282 mm depth × 160 mm width × 230 mm height.","salesMarkdown":"## Panel fit and clearance — what the dimensions mean for the enclosure The 3RW5072-2AB05 measures 282 mm deep by 160 mm wide by 230 mm high, fastened with screw fixing to a vertical mounting surface. Clearance requirements: 5 mm at the side, 100 mm upward, 10 mm forward, 0 mm backward, and 75 mm downward — the zero backward clearance means the back of the unit can sit flush against the panel backplate, saving depth in shallow enclosures. ## Hazardous-area certification — ATEX and IECEx for Zone applications Both ATEX and IECEx certifications are listed, meaning this soft starter is approved for use in potentially explosive atmospheres per the ATEX Directive and IECEx Scheme — a requirement for oil & gas, chemical, or grain-handling installations. ## Motor starting profiles — trip class and ramp functions Trip class is selectable as CLASS 10A, 10E (preset), or 20E per IEC 60947-4-2 — this determines how long the starter can sustain locked-rotor current before tripping, with CLASS 10 being the standard for most motor starts and CLASS 20E allowing longer acceleration for high-inertia loads. Voltage Ramp and Soft Torque starting profiles are available, along with Pump Ramp Down for controlled deceleration on pump applications to prevent water hammer. Minimum load is 15% of the smallest settable Ie, so the unit can handle light-load starts without nuisance tripping — useful for unloaded conveyors or centrifugal pumps starting against a closed valve. ## Fieldbus connectivity — which networks are supported The 3RW5072-2AB05 supports PROFIBUS, Modbus RTU, Modbus TCP, EtherNet/IP, and PROFINET (with PROFIenergy capability via the PROFINET standard communication module), covering the major industrial Ethernet and fieldbus protocols for integration into most control architectures. ## Thermal environment — operating range and derating Shock resistance is 15 g for 11 ms, with potential contact lifting noted above 12 g — relevant for installations on vibrating machinery or near crushers.","metaTitle":"Siemens 3RW5072-2AB05 Soft Starter, 90 A, 200-600 V, ATEX","metaDescription":"Siemens 3RW5072-2AB05 soft starter, 90 A min, 200-600 V, ATEX/IECEx certified, trip class 10A/10E/20E, PROFIBUS/Modbus/EtherNet/IP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Soft Starters"],"specifications":{"ATEX":"Yes","Depth":"282 mm","IECEx":"Yes","Width":"160 mm","title":"3RW5072-2AB05","Height":"230 mm","Minimum":"90 A","Upwards":"100 mm","Forwards":"10 mm","PROFIBUS":"Yes","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, 24 V AC/DC 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","at DC rated value":"24 V","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","at 50 Hz rated value":"24 V","at 60 Hz rated value":"24 V","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","accuracy class according to IEC 61557-12":"5 %","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/DC","Holding Current In Bypass Operation Rated Value":"490 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":"160 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 %","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","Locked-Rotor Current At Close Of Bypass Contact Maximum":"7.6 A","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)","relative negative tolerance of the control supply voltage at DC":"-20 %","relative positive tolerance of the control supply voltage at DC":"20 %","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":"3.3 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":"12.1 ms","relative negative tolerance of the control supply voltage at AC at 50 Hz":"-20 %","relative negative tolerance of the control supply voltage at AC at 60 Hz":"-20 %","relative positive tolerance of the control supply voltage at AC at 50 Hz":"20 %","relative positive tolerance of the control supply voltage at AC at 60 Hz":"20 %","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","at AWG cables for main contacts for box terminal using the front clamping point":"3/0 ... 600 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/087724331884614d9e7cc148bb2d985d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=830727&mlfb=3RW5072-2AB05"},"ai":{"faq":[{"question":"What ATEX and IECEx certifications does the 3RW5072-2AB05 carry?","answer":"Both ATEX and IECEx certifications are listed on the product, qualifying it for use in hazardous locations under the ATEX Directive and IECEx Scheme."},{"question":"What is the minimum operating current for the 3RW5072-2AB05?","answer":"The minimum operating current is 90 A, which sets the floor for motor sizing — the starter cannot be used below this current level."},{"question":"What fieldbus protocols does the 3RW5072-2AB05 support?","answer":"It supports PROFIBUS, Modbus RTU, Modbus TCP, EtherNet/IP, and PROFINET (with PROFIenergy), covering the major industrial networks for integration into most control systems."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW5072-2AB05","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/3RW5072-2AB05 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}}