{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW5074-6AB14","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW5074-6AB14","canonicalUrl":"https://aoctrl.com/siemens/3RW5074-6AB14","factsUrl":"https://aoctrl.com/api/mcp/products/3RW5074-6AB14","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RW5074-6AB14 soft starter, 135 A minimum, 200-480 V, Trip Class 10A/10E/20E, ATEX, UKEX, IECEx, Modbus RTU/TCP, EtherNet/IP, PROFIBUS, screw fixing.","salesMarkdown":"## Active production with hazardous-area certifications The 3RW5074-6AB14: Rated for a minimum motor current of 135 A at 200-480 V, this unit covers medium-horsepower pump, fan, and compressor starts where controlled acceleration protects driven loads. ## Trip class and protection coordination Trip Class 10A (preset), 10E, or 20E per IEC 60947-4-2 lets you match the thermal overload curve to the motor's starting profile — Class 10A clears fast on high-inertia loads, while 20E gives longer ramp time for heavy starts without nuisance tripping. Shock resistance is 15 g / 11 ms, dropping to 12 g / 11 ms if contact lifting is a concern — relevant for mobile or vibration-prone installations. ## Fieldbus flexibility and pump-specific features Built-in Modbus RTU, Modbus TCP, and EtherNet/IP, plus optional PROFIBUS and PROFINET with the standard communication module, mean this starter drops into most control architectures without a gateway. Soft Torque and Pump Ramp Down reduce mechanical shock on pump systems during start and stop — the voltage ramp and adjustable deceleration limit water hammer in pipelines. The analog output defaults to 4-20 mA but is parameterizable to 0-10 V if you need a speed or current signal back to the PLC. ## Mounting and clearance dimensions Screw fixing to the back panel, with a 160 mm width, 230 mm height, and 282 mm depth — leaves 100 mm clearance above, 75 mm below, 5 mm at the sides, and 10 mm forward for airflow and wiring access. No backwards clearance needed (0 mm), so the unit can sit flush against a rear panel wall. ## Sourcing and compliance documentation ATEX and UKEX add hazardous-area compliance for Zone 1/2 gas or dust environments. Minimum load is 15% of the smallest settable Ie — don't undersize the motor below this threshold or the starter may not detect the load correctly.","metaTitle":"Siemens 3RW5074-6AB14 Soft Starter, 135 A, 200-480 V, ATEX","metaDescription":"Siemens 3RW5074-6AB14 soft starter, 135 A minimum, 200-480 V, ATEX/UKEX certified, active production. Quoted to order against BOM via independent distribution.","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":"3RW5074-6AB14","Height":"230 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 / 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 ... 480 V","Soft Torque":"Yes","UL approval":"Yes","description":"SIRIUS soft starter 200-480 V 315 A, 110-250 V AC Screw 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":"screw-type 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":"315 A","at 50 °C rated value":"279 A","at 60 °C rated value":"255 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":"36 W","at 50 °C after startup":"29 W","at 60 °C after startup":"24 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":"3 368 W","at 50 °C during startup":"2 805 W","at 60 °C during startup":"2 455 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":"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":"90 kW","at 400 V at 40 °C rated value":"160 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":"2x3NA3365-6; 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":"75 hp","at 220/230 V at 50 °C rated value":"100 hp","at 460/480 V at 50 °C rated value":"200 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":"3RT1075","of line contactor usable up to 690 V":"3RT1075","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":"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","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":"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":"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":"1x (0.5 ... 2.5 mm²), 2x (0.5 ... 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 335; 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 333-2; 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 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":"$1,697.99","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/24623abe2def5b704a0774ed5708e286.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=830768&mlfb=3RW5074-6AB14"},"ai":{"faq":[{"question":"What ATEX and UKEX certifications does 3RW5074-6AB14 carry?","answer":"It carries ATEX, UKEX, and IECEx certifications, making it suitable for explosive atmospheres in gas or dust zones."},{"question":"What is the minimum motor current for this soft starter?","answer":"The minimum settable motor current is 135 A, with a minimum load of 15% relative to that setting."},{"question":"How do I get pricing and availability for 3RW5074-6AB14?","answer":"Submit an RFQ against your BOM quantity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW5074-6AB14","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/3RW5074-6AB14 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}}