{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW5056-2TB15","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW5056-2TB15","canonicalUrl":"https://aoctrl.com/siemens/3RW5056-2TB15","factsUrl":"https://aoctrl.com/api/mcp/products/3RW5056-2TB15","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RW5056-2TB15 soft starter, 81 A minimum, 200-600 V, ATEX, IECEx, UL, CSA, trip class 10A/10E/20E, PROFIBUS, Modbus RTU/TCP, EtherNet/IP.","salesMarkdown":"## Fieldbus and integration note The 3RW5056-2TB15: Communication options cover PROFIBUS, Modbus RTU, Modbus TCP, and EtherNet/IP, with PROFIenergy support available when paired with a PROFINET standard communication module. This makes it straightforward to integrate into most industrial Ethernet or fieldbus topologies without a separate gateway. ## Trip class and motor protection Trip class is selectable as CLASS 10A, CLASS 10E (preset), or CLASS 20E per IEC 60947-4-2. CLASS 10A suits standard induction motors with short acceleration times; CLASS 20E provides extended ramp time for high-inertia loads like centrifuges or large fans. The preset CLASS 10E is a common starting point for general-purpose motor starting. A minimum load setting of 15% relative to the smallest settable Ie prevents nuisance tripping on lightly loaded motors. Soft torque and voltage ramp functions are included, along with pump ramp down for controlled deceleration in fluid-handling applications. Mounting is by screw fixing on a vertical surface, rotatable ±90° and tiltable ±22.5° front-to-back. Clearance requirements: 100 mm upwards, 75 mm downwards, 10 mm forwards, 5 mm at the sides, and 0 mm backwards — plan enclosure depth accordingly. Shock resistance is 15 g / 11 ms, dropping to 12 g / 11 ms with potential contact lifting. The 249 mm depth and 120 mm width fit standard 600 mm deep enclosures.","metaTitle":"Siemens 3RW5056-2TB15 Soft Starter, 81 A, 200-600 V, ATEX","metaDescription":"Siemens SIRIUS 3RW5056-2TB15 soft starter, rated 81 A minimum, 200-600 V, ATEX/IECEx certified, trip class 10A/10E/20E. Current production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Soft Starters"],"specifications":{"ATEX":"Yes","Depth":"249 mm","IECEx":"Yes","Width":"120 mm","Height":"198 mm","Minimum":"81 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","CSA approval":"Yes","Remote Reset":"Yes; By turning off the control supply voltage","Voltage Ramp":"Yes","Analog Output":"No","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":"171 A","at 50 °C rated value":"153 A","at 60 °C rated value":"141 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":"29 W","at 50 °C after startup":"23 W","at 60 °C after startup":"20 W","EMC emitted interference":"acc. to IEC 60947-4-2: Class A","For Main Current Circuit":"busbar connection","Number Of Analog Outputs":"0","Number Of Digital Inputs":"1","Weight Without Packaging":"5.2 kg","at 40 °C during startup":"1 751 W","at 50 °C during startup":"1 478 W","at 60 °C during startup":"1 308 W","For Control Circuit Solid":"2x (0.25 ... 1.5 mm²)","Motor Overload Protection":"Yes; Full motor protection (thermistor motor protection and 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":"45 kW","at 400 V at 40 °C rated value":"90 kW","at 500 V at 40 °C rated value":"110 kW","Width Of Connection Bar Maximum":"25 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":"3NA3244-6; 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":"50 hp","at 220/230 V at 50 °C rated value":"50 hp","at 460/480 V at 50 °C rated value":"100 hp","at 575/600 V at 50 °C rated value":"150 hp","of circuit breaker usable at 400 V":"3VA2220-7MN32-0AA0; Type of assignment 1, Iq = 20 kA","of circuit breaker usable at 500 V":"3VA2220-7MN32-0AA0; Type of assignment 1, Iq = 20 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":"3RT1056","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":"1 800 V","Evaluation Of Thermistor Motor Protection":"Yes; Type A PTC or Klixon / Thermoclick","of communication module Modbus RTU usable":"3RW5980-0CR00","of communication module Modbus TCP usable":"3RW5980-0CT00","For Main Contacts With Screw-Type Terminals":"89 ... 124 lbf·in","At Rotary Coding Switch On Switch Position 1":"81 A","At Rotary Coding Switch On Switch Position 2":"87 A","At Rotary Coding Switch On Switch Position 3":"93 A","At Rotary Coding Switch On Switch Position 4":"99 A","At Rotary Coding Switch On Switch Position 5":"105 A","At Rotary Coding Switch On Switch Position 6":"111 A","At Rotary Coding Switch On Switch Position 7":"117 A","At Rotary Coding Switch On Switch Position 8":"123 A","At Rotary Coding Switch On Switch Position 9":"129 A","at AWG cables for main current circuit solid":"4 ... 250 kcmil","for DIN cable lug for main contacts stranded":"16 ... 95 mm²","At Rotary Coding Switch On Switch Position 10":"135 A","At Rotary Coding Switch On Switch Position 11":"141 A","At Rotary Coding Switch On Switch Position 12":"147 A","At Rotary Coding Switch On Switch Position 13":"153 A","At Rotary Coding Switch On Switch Position 14":"159 A","At Rotary Coding Switch On Switch Position 15":"165 A","At Rotary Coding Switch On Switch Position 16":"171 A","Type Of Voltage Of The Control Supply Voltage":"AC","With Conductor Cross-Section = 0.5 Mm2 Maximum":"50 m","With Conductor Cross-Section = 1.5 Mm2 Maximum":"150 m","With Conductor Cross-Section = 2.5 Mm2 Maximum":"250 m","Holding Current In Bypass Operation Rated Value":"80 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":"25 ... 120 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":"2.5 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)","For Main Contacts For Box Terminal Using Both Clamping Points Solid":"max. 1x 95 mm², 1x 120 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":"max. 2x 120 mm²","For Main Contacts For Box Terminal Using The Back Clamping Point Solid":"16 ... 120 mm²","of back-up R fuse link for semiconductor protection usable up to 690 V":"3NE3 335; Type of coordination 2, Iq = 65 kA","For Main Contacts For Box Terminal Using The Front Clamping Point Solid":"16 ... 120 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":"16 ... 120 mm²","of full range R fuse link for semiconductor protection usable up to 690 V":"3NE1 230-0; Type of coordination 2, Iq = 65 kA","For Main Contacts For Box Terminal Using The Front Clamping Point Stranded":"16 ... 70 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":"6 ... 250 kcmil","at AWG cables for main contacts for box terminal using the front clamping point":"6 ... 250 kcmil","For Main Contacts For Box Terminal Using Both Clamping Points Finely Stranded With Core End Processing":"max. 1x 95 mm², 1x 120 mm²","For Main Contacts For Box Terminal Using Both Clamping Points Finely Stranded Without Core End Processing":"max. 1x 95 mm², 1x 120 mm²","For Main Contacts For Box Terminal Using The Back Clamping Point Finely Stranded With Core End Processing":"16 ... 120 mm²","For Main Contacts For Box Terminal Using The Front Clamping Point Finely Stranded With Core End Processing":"16 ... 120 mm²","For Main Contacts For Box Terminal Using The Back Clamping Point Finely Stranded Without Core End Processing":"10 ... 120 mm²","For Main Contacts For Box Terminal Using The Front Clamping Point Finely Stranded Without Core End Processing":"10 ... 120 mm²"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=830517&mlfb=3RW5056-2TB15","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RW5056-2TB15/alternatives.json"},"ai":{"faq":[{"question":"Does 3RW5056-2TB15 support Modbus TCP?","answer":"Yes, it supports Modbus TCP, Modbus RTU, PROFIBUS, and EtherNet/IP. PROFIenergy is available when used with a PROFINET standard communication module."},{"question":"Where can I buy 3RW5056-2TB15 available via RFQ confirmation?","answer":"This part is sourced and quoted to order against an RFQ. Availability and pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW5056-2TB15","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/3RW5056-2TB15 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}