{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW5515-1HF14","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW5515-1HF14","canonicalUrl":"https://aoctrl.com/siemens/3RW5515-1HF14","factsUrl":"https://aoctrl.com/api/mcp/products/3RW5515-1HF14","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RW5515-1HF14 soft starter, rated voltage 200-480 V, trip class 10A/10E/20E/30E per IEC 60947-4-2, ATEX and IECEx certified, UL and CSA approved, PROFIBUS/Modbus/EtherNet/IP communications, 275H x 170W x 152D mm.","salesMarkdown":"## Motor starting in hazardous areas — ATEX and IECEx on board The Siemens 3RW5515-1HF14 is a soft starter carrying both ATEX and IECEx certification, meaning it can be specified for motor start applications in explosive atmospheres where standard starters are excluded. The rated voltage range of 200-480 V covers most low-voltage three-phase motor nameplates across 50/60 Hz installations. Trip class selection — CLASS 10A, 10E (default), 20E, or 30E per IEC 60947-4-2 — lets you match the overload protection profile to the motor thermal capacity and starting duty. CLASS 10A suits high-inertia loads where the start current must clear quickly; CLASS 30E gives wider headroom for long acceleration times on conveyors or crushers. ## Fieldbus integration and analog process feedback PROFIenergy is available when paired with PROFINET communication modules for energy management during idle periods. An analog output configurable for 4-20 mA or 0-10 V provides real-time motor current or torque feedback to the PLC or DCS — useful for process monitoring without a separate transducer. The torque control function and pump ramp-down feature allow soft stopping for fluid-handling applications to prevent water hammer. ## Panel layout and clearance requirements Dimensions are 275 mm height, 170 mm width, and 152 mm depth — a compact footprint for a soft starter with this feature set. Clearance requirements: 100 mm upwards, 75 mm downwards, 10 mm forwards, 0 mm backwards, and 5 mm at the sides. The backwards clearance of zero means it can sit flush against the back panel, simplifying busbar or trunking routing. Screw terminals are standard, so no special tooling is needed for installation or retrofit. ## Safety function and fail-safe integration The safe state is defined as an open load circuit, meaning the soft starter de-energizes the motor when the safety function is demanded. The B10d value of 1,588,000 cycles provides a reliability figure for safety loop calculations per IEC 61508, supporting SIL-rated applications when combined with a suitable safety relay or F-PLC. CE marking, UL approval, and CSA approval are all listed, covering European, US, and Canadian regulatory jurisdictions. The accuracy class of 5 per IEC 61557-12 applies to the integrated measurement functions for motor current and voltage. ## Additional control and diagnostic features DC braking, voltage ramp, torque control, and motor heating functions are built in — no external modules needed for common starting/stopping profiles. The event list, error logbook, and trace function support troubleshooting without a separate data logger. Auto-reset and remote reset are available for unattended restart after a fault, useful in remote or automated installations. The service factor of 1.15 allows the motor to run at 115% rated load continuously without tripping, matching standard NEMA motor margins.","metaTitle":"Siemens 3RW5515-1HF14 Soft Starter, 200-480V, ATEX","metaDescription":"Siemens 3RW5515-1HF14 soft starter, 200-480 V rated, ATEX & IECEx certified, trip class 10A/10E/20E/30E per IEC 60947-4-2. UL/CSA, PROFIBUS, Modbus","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Soft Starters"],"specifications":{"ATEX":"Yes","Depth":"152 mm","IECEx":"Yes","Solid":"2x (1.0 ... 2.5 mm²), 2x (2.5 ... 10 mm²)","Width":"170 mm","title":"3RW5515-1HF14","Height":"275 mm","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","B10d value":"1 588 000","CE marking":"Yes","DC braking":"Yes","Event List":"Yes","Modbus RTU":"Yes","Modbus TCP":"Yes","Safe State":"Open load circuit","Trip Class":"CLASS 10A / 10E (default) / 20E / 30E; 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 and PROFINET High-Feature communication modules","Rated Value":"200 ... 480 V","UL approval":"Yes","description":"SIRIUS soft starter 200-480 V 25 A, 110-250 V AC, Screw terminals Fail-safe","CSA approval":"Yes","Remote Reset":"Yes","Voltage Ramp":"Yes","Analog Output":"Yes; 4 ... 20 mA (default) / 0 ... 10 V","Error Logbook":"Yes","Motor Heating":"Yes","Accuracy Class":"5 (based on IEC 61557-12)","Pump Ramp Down":"Yes","Screw Terminal":"Yes","Service Factor":"1.15","Torque Control":"Yes","Trace Function":"Yes","With Fail-Safe":"1","Breakaway Pulse":"Yes","Firmware Update":"Yes","Parameterizable":"4","lifecycle_stage":"current","Combined Braking":"Yes","During Operation":"-25 ... +60 °C; Please observe derating at temperatures of 40 °C or above","Fastening Method":"screw fixing","HMI-High Feature":"Yes","Minimum Load [%]":"10 %; Relative to set Ie","Product Category":"Hybrid switching devices","Shock Resistance":"15 g / 11 ms, from 6 g / 11 ms with potential contact lifting","Start Torque [%]":"10 ... 100 %","Mounting Position":"Vertical (can be rotated +/- 90° and tilted forward or backward +/- 22.5°)","PROFINET standard":"Yes","Product Brand Name":"SIRIUS","Application Wizards":"Yes","Degree Of Pollution":"3, acc. to IEC 60947-4-2","For Control Circuit":"screw-type terminals","Product Designation":"Failsafe soft starters","Reversing Operation":"Yes","Stopping Torque [%]":"10 ... 100 %","Alternative Run-Down":"Yes","Condition Monitoring":"Yes","Idle Time Adjustable":"0 ... 255 s","Inside-Delta Circuit":"Yes","Starting Voltage [%]":"20 ... 100 %","Stopping Voltage [%]":"50 %; non-adjustable","Vibration Resistance":"15 mm up to 6 Hz; 2 g up to 500 Hz","PROFINET high-feature":"Yes","Ramp-Down (Soft Stop)":"Yes","Torque Limitation [%]":"20 ... 200 %","at 40 °C rated value":"43.3 A","at 50 °C rated value":"39 A","at 60 °C rated value":"33.9 A","Communication Function":"Yes","Digital Output Version":"2 normally-open contacts (NO) / 1 normally-closed contact (NC) / 1 changeover contact (CO)","Slave Pointer Function":"Yes","Spring-Loaded Terminal":"No","according to IEC 61508":"SIL1","Ramp-Up (Soft Starting)":"Yes","at 40 °C after startup":"8 W","at 50 °C after startup":"7 W","at 60 °C after startup":"6 W","EMC emitted interference":"acc. to IEC 60947-4-2: Class A, Class B on request","Emergency Operation Mode":"Yes","For Main Current Circuit":"screw-type terminals","Number Of Analog Outputs":"1","Number Of Digital Inputs":"4","Number Of Parameter Sets":"3","Weight Without Packaging":"2.3 kg","at 40 °C during startup":"364 W","at 50 °C during startup":"309 W","at 60 °C during startup":"262 W","Breakaway Time Adjustable":"0 ... 2 s","For Control Circuit Solid":"1x (0.5 ... 4.0 mm²), 2x (0.5 ... 2.5 mm²)","Motor Overload Protection":"Yes; Full motor protection (thermistor motor protection and electronic motor overload protection) / When using the motor overload protection according to ATEX, an upstream contactor is required in inside-delta circuit.","Number Of Digital Outputs":"3","Via Software Configurable":"Yes","Automatic Parameterisation":"Yes","Impulse Voltage Rated Value":"6 kV","Intrinsic Device Protection":"Yes","Number Of Controlled Phases":"3","Safe failure fraction (SFF)":"60 %","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":"Yes","at DC-13 at 24 V rated value":"1 A","Adjustable Current Limitation":"Yes","Electromagnetic Compatibility":"acc. to IEC 60947-4-2","Substance Prohibitance (Date)":"11/22/2019","at 40 °C rated value minimum":"5 A","at AC-15 at 250 V rated value":"3 A","is supported HMI-High Feature":"Yes","Insulation Voltage Rated Value":"480 V","Ramp-Down Time Of Soft Starter":"0 ... 360 s","at 230 V at 40 °C rated value":"5.5 kW","at 400 V at 40 °C rated value":"11 kW","Breakaway Voltage [%] Adjustable":"40 ... 100 %","Control Supply Voltage Frequency":"50 ... 60 Hz","Operating Measured Value Display":"Yes","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":"3NA3822-6; Type of coordination 1, Iq = 65 kA","Between Main And Auxiliary Circuit":"480 V; does not apply for thermistor connection","Start-Up Ramp Time Of Soft Starter":"0 ... 360 s","at 200/208 V at 50 °C rated value":"5 hp","at 220/230 V at 50 °C rated value":"7.5 hp","at 460/480 V at 50 °C rated value":"15 hp","of circuit breaker usable at 400 V":"3RV2032-4EA10; Type of coordination 1, Iq = 65 kA, CLASS 10","of circuit breaker usable at 500 V":"3RV2032-4EA10; Type of coordination 1, Iq = 15 kA, CLASS 10","At Inside-Delta Circuit Rated Value":"200 ... 480 V","Programmable Control Inputs/Outputs":"Yes","at the digital inputs at DC maximum":"1 000 m","of communication module Ethernet/IP":"3RW5980-0CE00","Current Unbalance Limiting Value [%]":"10 ... 60 %","Design Of The Overvoltage Protection":"Varistor","Surge Voltage Resistance Rated Value":"6 kV","category according to EN ISO 13849-1":"2","Current Limiting Value [%] Adjustable":"125 ... 800 %","during storage according to IEC 60721":"1K6 (only occasional condensation), 1C2 (no salt mist), 1S2 (sand must not get inside the devices), 1M4","stop category according to EN 60204-1":"0","Between Soft Starter And Motor Maximum":"800 m","Removable Terminal For Control Circuit":"Yes","according to ATEX directive 2014/34/EU":"BVS 18 ATEX F 003 X","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","Finely Stranded With Core End Processing":"2x (1.0 ... 2.5 mm²), 2x (2.5 ... 6.0 mm²)","Number of digital outputs with fail-safe":"1","Blocking Voltage Of The Thyristor Maximum":"1 600 V","Evaluation Of Thermistor Motor Protection":"Yes; Type A PTC or Klixon / Thermoclick","Number Of Digital Outputs Parameterizable":"2","average diagnostic coverage level (DCavg)":"90 %","of communication module Modbus RTU usable":"3RW5980-0CR00","of communication module Modbus TCP usable":"3RW5980-0CT00","Creep Speed In Both Directions Of Rotation":"Yes","Ground-Fault Monitoring Limiting Value [%]":"10 ... 95 %","Soft Starting At Heavy Starting Conditions":"Yes","For Main Contacts With Screw-Type Terminals":"18 ... 22 lbf·in","safety device type according to IEC 61508-2":"Type B","Recovery Time After Overload Trip Adjustable":"60 ... 1 800 s","at AWG cables for main current circuit solid":"2x (16 ... 12), 2x (14 ... 8)","Number Of Digital Outputs Not Parameterizable":"1","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":"165 mA","hardware fault tolerance according to IEC 61508":"0","utilization category according to IEC 60947-4-2":"AC 53a","PFHD with high demand rate according to EN 62061":"1E-6 1/h","Product Feature Integrated Bypass Contact System":"Yes","of communication module PROFINET standard usable":"3RW5980-0CS00","SIL Claim Limit (subsystem) according to EN 62061":"SIL 1","Control Supply Current In Standby Mode Rated Value":"100 mA","PFDavg with low demand rate according to IEC 61508":"0.09","performance level (PL) according to EN ISO 13849-1":"c","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","of communication module PROFINET high-feature usable":"3RW5950-0CH00","Inrush Current By Closing The Bypass Contacts Maximum":"0.2 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":"2 000 m; Derating as of 1000 m, see catalog","of the gG fuse usable at inside-delta circuit up to 500 V":"3NA3822-6; Type of coordination 1, Iq = 65 kA","of circuit breaker usable at 400 V at inside-delta circuit":"3RV2032-4VA10; Type of coordination 1, Iq = 65 kA, CLASS 10","of circuit breaker usable at 500 V at inside-delta circuit":"3RV2032-4VA10; Type of coordination 1, Iq = 15 kA, CLASS 10","Diagnostics Test Interval By Internal Test Function Maximum":"1 000 s","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":"43 A","of back-up R fuse link for semiconductor protection usable up to 690 V":"3NE8021-1; Type of coordination 2, Iq = 65 kA","Duration Of Inrush Current Peak At Application Of Control Supply Voltage":"1.6 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":"3NE1817-0; 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 %","OFF-delay time with safety-related request when switched off via control inputs maximum":"100 ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0159cabfb147b7547d74ebbc8a34cace.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=830966&mlfb=3RW5515-1HF14"},"ai":{"faq":[{"question":"Is 3RW5515-1HF14 certified for hazardous area installations?","answer":"Yes, it carries both ATEX and IECEx certification, so it can be used for motor starting in explosive atmospheres where standard soft starters are not permitted. The safe state is an open load circuit, which means it fails safe by removing power from the motor."},{"question":"What trip classes are available on 3RW5515-1HF14?","answer":"The soft starter offers CLASS 10A, 10E (default), 20E, and 30E per IEC 60947-4-2. CLASS 10A is the fastest trip for high-inertia loads, while CLASS 30E provides the longest acceleration window for heavy starts like crushers or centrifuges."},{"question":"What fieldbus protocols does 3RW5515-1HF14 support?","answer":"It supports PROFIBUS, Modbus RTU, Modbus TCP, and EtherNet/IP natively. PROFIenergy is available when used with PROFINET communication modules for energy management during idle periods."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW5515-1HF14","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/3RW5515-1HF14 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}}