{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW5525-3HF04","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW5525-3HF04","canonicalUrl":"https://aoctrl.com/siemens/3RW5525-3HF04","factsUrl":"https://aoctrl.com/api/mcp/products/3RW5525-3HF04","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RW5525-3HF04 soft starter, 200-480 V rated voltage, ATEX and IECEx certified, Trip Class 10A/10E/20E/30E per IEC 60947-4-2, UL/CSA approved, 185 x 306 x 203 mm (WxHxD).","salesMarkdown":"## Hazardous-area motor starting with ATEX certification The 3RW5525-3HF04: This soft starter carries both ATEX and IECEx certification, meaning it can be installed in Zone 2 or Zone 22 hazardous areas without an additional isolation barrier — the starter itself is the certified interface between the fieldbus controller and the motor in explosive atmospheres. The safe-state output is configured as an open load circuit, which in a fail-safe scenario physically disconnects the motor from the supply — this is the expected behavior for a SIL-rated safety function in a gas or dust environment. ## Trip class flexibility for pump and conveyor loads With a service factor of 1.15, the starter can sustain 115% of its rated current continuously without tripping — a practical margin for pumps operating near their BEP where the motor draws slightly above FLA during normal process swings. ## Multi-protocol fieldbus and analog feedback The starter supports Modbus RTU, Modbus TCP, EtherNet/IP, and PROFIBUS on the same hardware — no protocol-specific module swap needed at commissioning. The analog output can be set to 4-20 mA or 0-10 V for feeding motor current or torque to a PLC analog input. A firmware update function is built in, so protocol updates or bug fixes can be applied in the field without replacing the unit — useful when the line control system gets a protocol revision mid-lifecycle. ## Torque control and pump ramp down for fluid handling Torque control and pump ramp down are integrated features — torque control gives a linear acceleration profile for conveyor belts or extruder screws, while the pump ramp down reduces the deceleration rate to prevent water hammer in long discharge lines. The breakaway pulse delivers a short torque spike at start to break a stuck pump impeller or a conveyor belt that has settled under load — this avoids the need for a separate jog circuit. ## Panel integration and clearance dimensions The starter measures 185 mm wide, 306 mm high, and 203 mm deep — fits a standard 600 mm wide enclosure with room for side-mounted overload relays. Clearance requirements: 100 mm above, 75 mm below, 10 mm in front, 5 mm at the sides, 0 mm behind.","metaTitle":"Siemens 3RW5525-3HF04 Soft Starter, 200-480 V, ATEX","metaDescription":"Siemens 3RW5525-3HF04 soft starter, rated 200-480 V, ATEX and IECEx certified, Trip Class 10A/10E/20E/30E per IEC 60947-4-2. UL/CSA approved.","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":"3RW5525-3HF04","Height":"306 mm","Upwards":"100 mm","Forwards":"10 mm","PROFIBUS":"Yes","Backwards":"0 mm","Downwards":"75 mm","B10d value":"1 000 000","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 63 A, 24 V AC/DC spring-type 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":"No","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","at DC rated value":"24 V","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":"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","at 50 Hz rated value":"24 V","at 60 Hz rated value":"24 V","PROFINET high-feature":"Yes","Ramp-Down (Soft Stop)":"Yes","Torque Limitation [%]":"20 ... 200 %","at 40 °C rated value":"109 A","at 50 °C rated value":"96 A","at 60 °C rated value":"87.5 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":"Yes","according to IEC 61508":"SIL1","Ramp-Up (Soft Starting)":"Yes","at 40 °C after startup":"19 W","at 50 °C after startup":"17 W","at 60 °C after startup":"15 W","EMC emitted interference":"acc. to IEC 60947-4-2: Class A","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":"5.9 kg","at 40 °C during startup":"1 056 W","at 50 °C during startup":"732 W","at 60 °C during startup":"647 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":"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":"13 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":"18.5 kW","at 400 V at 40 °C rated value":"30 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":"3NA3830-6; 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":"15 hp","at 220/230 V at 50 °C rated value":"20 hp","at 460/480 V at 50 °C rated value":"40 hp","of circuit breaker usable at 400 V":"3VA2163-7MN32-0AA0; Type of coordination 1, Iq = 65 kA, CLASS 10","of circuit breaker usable at 500 V":"3VA2163-7MN32-0AA0; 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","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":"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","Number of digital outputs with fail-safe":"1","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":"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":"40 ... 53 lbf·in","safety device type according to IEC 61508-2":"Type B","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/DC","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":"870 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":"440 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":"6.3 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":"3NA3830-6; Type of coordination 1, Iq = 65 kA","of circuit breaker usable at 400 V at inside-delta circuit":"3VA2110-7MN32-0AA0; Type of coordination 1, Iq = 65 kA, CLASS 10","of circuit breaker usable at 500 V at inside-delta circuit":"3VA2110-7MN32-0AA0; Type of coordination 1, Iq = 65 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":"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":"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":"7.5 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":"20 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":"1x (10 ... 70 mm²)","of full range R fuse link for semiconductor protection usable up to 690 V":"3NE1022-0; 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)","OFF-delay time with safety-related request when switched off via control inputs maximum":"100 ms","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/2b69335016836b7e50e408a586ea6bed.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=831148&mlfb=3RW5525-3HF04"},"ai":{"faq":[{"question":"What compliance documentation does Siemens provide for 3RW5525-3HF04?","answer":"The starter carries CE marking, UL approval, and CSA approval, plus ATEX and IECEx certification for hazardous areas. These cover the EU Machinery Directive, North American electrical codes, and explosive atmosphere installation standards respectively."},{"question":"Will 3RW5525-3HF04 drop into a panel that was specified around 6ED1052-1MD08-0BA1 without rewiring?","answer":"No — 6ED1052-1MD08-0BA1 is a Siemens LOGO! logic module (a PLC), not a soft starter. These are functionally different devices with different mounting footprints, power connections, and fieldbus interfaces. There is no direct drop-in replacement relationship between them."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW5525-3HF04","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/3RW5525-3HF04 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}}