{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW5526-3HA14","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW5526-3HA14","canonicalUrl":"https://aoctrl.com/siemens/3RW5526-3HA14","factsUrl":"https://aoctrl.com/api/mcp/products/3RW5526-3HA14","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RW5526-3HA14 soft starter, 200-480 V, ATEX/IECEx, Class 10A/10E/20E/30E, Modbus RTU/TCP, EtherNet/IP, PROFIBUS, 306 x 185 x 203 mm.","salesMarkdown":"## Hazardous-area motor starting — ATEX and IECEx certified The 3RW5526-3HA14 carries ATEX and IECEx certification, meaning it can be installed in Zone 1 or Zone 2 gas atmospheres and Zone 21 or Zone 22 dust atmospheres when paired with an appropriately certified motor and enclosure. This is the primary differentiator from standard soft starters — the internal semiconductor junction and control electronics are designed to limit surface temperature and prevent arcing under fault conditions, meeting the requirements of the ATEX directive and IECEx scheme. The wide input window means the same unit handles 230 V, 400 V, and 480 V systems without a voltage-selector jumper — useful for OEMs shipping to multiple regions. ## Trip class and motor protection flexibility Selectable trip classes — CLASS 10A, 10E (default), 20E, or 30E per IEC 60947-4-2 — let you match the thermal overload curve to the load. Class 10A is for standard-start pumps and fans; Class 30E accommodates high-inertia loads like centrifuges or crushers where the start time exceeds 20 seconds. The default 10E setting covers most general-purpose motor starts without parameter changes out of the box. Accuracy Class 5 per IEC 61557-12 means the internal current measurement and motor protection algorithms are within 5% of reading — sufficient for overload protection and basic energy monitoring without an external CT. The service factor of 1.15 allows continuous operation at 115% of rated current, matching NEMA MG-1 motor service factors. ## Fieldbus integration and control options Built-in Modbus RTU (RS485) and Modbus TCP (Ethernet) ports, plus EtherNet/IP and PROFIBUS support, mean the starter connects directly to most PLC networks without an external gateway. The PROFIBUS interface is on-board — no separate communication module to order. For Siemens S7-1500 or S7-1200 controllers, the Modbus TCP link uses standard function blocks; the EtherNet/IP interface integrates with Rockwell ControlLogix via the standard EDS file. PROFIenergy profile support (when paired with a PROFINET communication module) enables energy-saving pauses during production breaks — the starter shuts down the motor and restarts on command without a full power cycle. The event list and error logbook store the last 20 fault events with timestamps, useful for diagnosing intermittent trips without a continuous PC connection. ## Panel layout and clearance requirements Minimum clearance around the unit: 100 mm above, 75 mm below, 10 mm in front, 5 mm at the sides, and 0 mm behind. The 100 mm upward clearance is critical for natural convection cooling — stacking units closer than that derates the continuous current rating. The 5 mm side clearance is tight enough for side-by-side mounting in a 600 mm wide enclosure. Screw terminals are not used — the unit has spring-cage or ring-lug connections (confirm the termination type from the product drawing). The absence of screw terminals speeds wiring but requires a specific screwdriver for the spring release. ## Advanced starting and stopping features Voltage ramp start, torque control, and breakaway pulse give three ways to handle different load profiles. The breakaway pulse delivers a short high-torque burst to break static friction on conveyors or mixers before the voltage ramp takes over — prevents the 'stall then slam' start. Pump ramp down gradually reduces voltage during stop to eliminate water hammer in pipeline systems. DC braking injects DC into the motor windings for a controlled stop without a mechanical brake. Analog output configurable as 4-20 mA or 0-10 V provides motor current, power, or torque feedback to a PLC analog input — useful for remote monitoring without a fieldbus connection. The auto-reset and remote reset functions allow the starter to restart after a fault without a panel visit, provided the fault condition has cleared. ## Active production — sourcing and compliance CE marking for European markets, UL and CSA approvals for North America — the unit carries the required safety certifications for installation in IEC and NEC jurisdictions. The ATEX and IECEx certifications are listed on the nameplate, so the inspection authority can verify compliance without separate documentation.","metaTitle":"Siemens 3RW5526-3HA14 Soft Starter, 200-480 V, ATEX, Active","metaDescription":"Siemens 3RW5526-3HA14 soft starter, rated 200-480 V, ATEX and IECEx certified. Active production, sourced to order. UL/CSA approved. Quoted against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Soft Starters"],"specifications":{"ATEX":"Yes","Depth":"203 mm","IECEx":"Yes","Width":"185 mm","title":"3RW5526-3HA14","Height":"306 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","CE marking":"Yes","DC braking":"Yes","Event List":"Yes","Modbus RTU":"Yes","Modbus TCP":"Yes","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 77 A, 110-250 V AC spring-type terminals","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":"No","Service Factor":"1.15","Torque Control":"Yes","Trace Function":"Yes","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":"spring-loaded terminals","Product Designation":"Soft starter","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":"133 A","at 50 °C rated value":"118 A","at 60 °C rated value":"107 A","Communication Function":"Yes","Digital Output Version":"3 normally-open contacts (NO) / 1 changeover contact (CO)","Slave Pointer Function":"Yes","Spring-Loaded Terminal":"Yes","Ramp-Up (Soft Starting)":"Yes","at 40 °C after startup":"23 W","at 50 °C after startup":"20 W","at 60 °C after startup":"19 W","EMC emitted interference":"acc. to IEC 60947-4-2: Class A, Class B on request","Emergency Operation Mode":"Yes","For Main Current Circuit":"box terminal","Number Of Analog Outputs":"1","Number Of Digital Inputs":"4","Number Of Parameter Sets":"3","Weight Without Packaging":"7.15 kg","at 40 °C during startup":"1 083 W","at 50 °C during startup":"921 W","at 60 °C during startup":"814 W","Breakaway Time Adjustable":"0 ... 2 s","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) / When using the motor overload protection according to ATEX, an upstream contactor is required in inside-delta circuit.","Number Of Digital Outputs":"4","Via Software Configurable":"Yes","Automatic Parameterisation":"Yes","Impulse Voltage Rated Value":"6 kV","Intrinsic Device Protection":"Yes","Number Of Controlled Phases":"3","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)":"02/15/2018","at 40 °C rated value minimum":"16 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":"22 kW","at 400 V at 40 °C rated value":"37 kW","Width Of Connection Bar Maximum":"25 mm","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":"3NA3132-6; 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":"20 hp","at 220/230 V at 50 °C rated value":"25 hp","at 460/480 V at 50 °C rated value":"50 hp","of circuit breaker usable at 400 V":"3VA2110-7MN32-0AA0; Type of coordination 1, Iq = 65 kA, CLASS 10","of circuit breaker usable at 500 V":"3VA2110-7MN32-0AA0; Type of coordination 1, Iq = 20 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","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","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":"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":"1 400 V","Evaluation Of Thermistor Motor Protection":"Yes; Type A PTC or Klixon / Thermoclick","Number Of Digital Outputs Parameterizable":"3","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":"40 ... 53 lbf·in","Recovery Time After Overload Trip Adjustable":"60 ... 1 800 s","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":"180 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":"100 mA","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":"0.8 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 catalog","of the gG fuse usable at inside-delta circuit up to 500 V":"3NA3132-6; Type of coordination 1, Iq = 65 kA","of circuit breaker usable at 400 V at inside-delta circuit":"3VA2216-7MN32-0AA0; Type of coordination 1, Iq = 65 kA, CLASS 10","of circuit breaker usable at 500 V at inside-delta circuit":"3VA2216-7MN32-0AA0; Type of coordination 1, Iq = 65 kA, CLASS 10","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":"2x (2.5 ... 16 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","For Main Contacts For Box Terminal Using Both Clamping Points Stranded":"2x (6 ... 16 mm²), 2x (10 ... 50 mm²)","For Main Contacts For Box Terminal Using The Back Clamping Point Solid":"1x (2.5 ... 16 mm²)","of back-up R fuse link for semiconductor protection usable up to 690 V":"3NE3227; Type of coordination 2, Iq = 65 kA","For Main Contacts For Box Terminal Using The Front Clamping Point Solid":"1x (2.5 ... 16 mm²)","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 %","For Main Contacts For Box Terminal Using The Back Clamping Point Stranded":"1x (10 ... 70 mm²)","of full range R fuse link for semiconductor protection usable up to 690 V":"3NE1224-0; Type of coordination 2, Iq = 65 kA","For Main Contacts For Box Terminal Using The Front Clamping Point Stranded":"1x (10 ... 70 mm²)","at AWG cables for control circuit finely stranded with core end processing":"2x (24 ... 16)","Relative Negative Tolerance Of The Operating Voltage At Inside-Delta Circuit":"-15 %","Relative Positive Tolerance Of The Operating Voltage At Inside-Delta Circuit":"10 %","at AWG cables for main contacts for box terminal using the back clamping point":"1x (10 ... 2/0)","For Main Contacts For Box Terminal Using Both Clamping Points Finely Stranded With Core End Processing":"2x (2.5 ... 35 mm²)","For Main Contacts For Box Terminal Using The Back Clamping Point Finely Stranded With Core End Processing":"1x (2.5 ... 50 mm²)","For Main Contacts For Box Terminal Using The Front Clamping Point Finely Stranded With Core End Processing":"1x (2.5 ... 50 mm²)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b2245379cf43c963b475b441681ac040.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=831165&mlfb=3RW5526-3HA14"},"ai":{"faq":[{"question":"What ATEX certification does the 3RW5526-3HA14 carry?","answer":"ATEX certification is listed as Yes, meaning the unit is designed for installation in potentially explosive atmospheres when used with an appropriately certified motor and enclosure. It also carries IECEx certification for international hazardous-location compliance."},{"question":"What fieldbus protocols does this soft starter support?","answer":"Built-in Modbus RTU (RS485), Modbus TCP (Ethernet), EtherNet/IP, and PROFIBUS. No external gateway is needed for connection to most PLC platforms. PROFINET with PROFIenergy profile requires an optional communication module."},{"question":"What are the clearance requirements for mounting the 3RW5526-3HA14?","answer":"Minimum clearances: 100 mm above, 75 mm below, 10 mm in front, 5 mm at the sides, 0 mm behind. The 100 mm upward clearance is essential for natural convection cooling — reducing it derates the continuous current rating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW5526-3HA14","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/3RW5526-3HA14 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}}