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3RW5075-6AB05
Soft Starter, 3RW Series, Three Phase, 370 A, 400 V to 600 V, 250 kW at 500 V, Screw
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: SIEMENS
- Product type: Motor Starters
- SVHC: To Be Advised
- No. of Poles: 3 Pole
- Power Rating: 250kW
- No. of Phases: Three Phase
- Product Range: SIRIUS 3RW50
- Current Rating: 370A
- IP / NEMA Rating: IP00, IP20
- Motor Starter Type: Soft Starter
- Supply Voltage Max: 600VAC
- Supply Voltage Min: 200VAC
| Delivery and price | |
|---|---|
| Units per pack | 1 |
| Price | 2792.7 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
**3RW5075-6AB05** **Data sheet** SIRIUS soft starter 200-600 V 370 A, 24 V AC/DC Screw terminals Analog output |**product brand name**|SIRIUS| |---|---| |**product category**|Hybrid switchingdevices| |**product designation**|Soft starter| |**product type designation**|3RW50| |**manufacturer's article number**|| |● of standard HMI module usable|3RW5980-0HS01| |● of high feature HMI module usable|3RW5980-0HF00| |● of communication module PROFINET standard usable|3RW5980-0CS00| |● of communication module PROFIBUS usable|3RW5980-0CP00| |● of communication module Modbus TCP usable|3RW5980-0CT00| |● of communication module Modbus RTU usable|3RW5980-0CR00| |● of communication module Ethernet/IP|3RW5980-0CE00| |● of circuit breaker usable at 400 V|3VA2580-6HN32-0AA0; Type of assignment 1, Iq=65 kA| |● of circuit breaker usable at 500 V|3VA2580-6HN32-0AA0; Type of assignment 1, Iq=65 kA| |● of thegG fuse usable upto 690 V|2x3NA3365-6; Type of coordination 1, Iq= 65 kA| |● of full range R fuse link for semiconductor protection|3NE1 334-2; Type of coordination 2, Iq=65 kA| |usable upto 690 V|| |● of back-up R fuse link for semiconductor protection|3NE3 336; Type of coordination 2, Iq=65 kA| |usable upto 690 V|| |● of line contactor usable upto 480 V|3RT1075| |● of line contactor usable up to 690 V|3RT1075| |**General technical data**|| |**starting voltage [%]**|30 ... 100 %| |**stopping voltage [%]**|50 %; non-adjustable| |**start-up ramp time of soft starter**|0 ... 20 s| |**ramp-down time of soft starter**|0 ... 20 s| |**current limiting value[%] adjustable**|130 ... 700 %| |**certificate of suitability**|| |● CE marking|Yes| |● UL approval|Yes| |● CSA approval|Yes| |**product component**|| |● HMI-High Feature|No| |● is supported HMI-Standard|Yes| |● is supported HMI-High Feature|Yes| |**product feature integrated bypass contact system**|Yes| |**number of controlled phases**|2| Subject to change without notice © Copyright Siemens 3RW50756AB05 Page 1/7 5/31/2026 ||**buffering time in the event ofpower failure**||| |---|---|---|---| ||● for main current circuit|100 ms|| ||● for control circuit|100 ms|| ||**insulation voltage rated value**|600 V|| ||**degree ofpollution**|3, acc. to IEC 60947-4-2|| ||**impulse voltage rated value**|6 kV|| ||**blocking voltage of the thyristor maximum**|1 600 V|| ||**service factor**|1|| ||**surge voltage resistance rated value**|6 kV|| ||**maximumpermissible voltage forprotective separation**||| ||● between main and auxiliarycircuit|600 V|| ||**shock resistance**|15g/ 11 ms, from 12g/ 11 ms withpotential contact lifting|| ||**vibration resistance**|15 mm to 6 Hz; 2gto 500 Hz|| ||utilization categoryaccordingto IEC 60947-4-2|AC-53a|| ||**reference code according to IEC 81346-2**|Q|| ||**Substance Prohibitance(day/month/year)**|09/23/2019|| ||**SVHC substance name**|Lead CAS-No. 7439-92-1<br>Lead monoxide (lead oxide) CAS-No. 1317-36-8<br>2,2',6,6'-tetrabromo-4,4'-isopropylidenediphenol CAS-No. 79-94-7<br>2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one CAS-No. 71868-<br>10-5<br>Melamine CAS-No. 108-78-1<br>6,6'-di-tert-butyl-2,2'-methylenedi-p-cresol CAS-No. 119-47-1|| ||**Net Weight**|8.3 kg|| ||**product function**||| ||● ramp-up (soft starting)|Yes|| ||● soft stopping|Yes|| ||● Soft Torque|Yes|| ||● adjustable current limitation|Yes|| ||●pumpstop|Yes|| ||● intrinsic deviceprotection|Yes|| ||● motor overloadprotection|Yes; Electronic motor overloadprotection|| ||● evaluation of thermistor motorprotection|No|| ||● auto-RESET|Yes|| ||● manual RESET|Yes|| ||● remote reset|Yes; Byturningoff the control supplyvoltage|| ||● communication function|Yes|| ||● operatingmeasured value display|Yes; Onlyin conjunction with special accessories|| ||● error logbook|Yes; Onlyin conjunction with special accessories|| ||● via softwareparameterizable|No|| ||● via software configurable|Yes|| ||**● PROFIenergy**|Yes; in connection with the PROFINET Standard communication module|| ||● voltage ramp|Yes|| ||● torque control|No|| ||● analogoutput|Yes; 4 ... 20 mA(default)/ 0 ... 10 V(parameterizable with High Feature HMI)|| ||**Power Electronics**||| ||**operational current**||| ||● at 40 °C rated value|370 A|| ||● at 50 °C rated value|328 A|| ||● at 60 °C rated value|300 A|| ||**operating voltage**||| ||● rated value|200 ... 600 V|| ||**relative negative tolerance of the operating voltage**|-15 %|| ||**relativepositive tolerance of the operating voltage**|10 %|| ||**operating power for 3-phase motors**||| ||● at 230 V at 40 °C rated value|110 kW|| ||● at 400 V at 40 °C rated value|200 kW|| ||● at 500 V at 40 °C rated value|250 kW|| ||**Operating frequency 1 rated value**|50 Hz|| ||**Operating frequency 2 rated value**|60 Hz|| ||**relative negative tolerance of the operating frequency**|-10 %|| Subject to change without notice © Copyright Siemens 3RW50756AB05 Page 2/7 5/31/2026 |**relativepositive tolerance of the operating frequency**|10 %| |---|---| |**adjustable motor current**|| |● at rotarycodingswitch on switchposition 1|160 A| |● at rotarycodingswitch on switchposition 2|174 A| |● at rotarycodingswitch on switchposition 3|188 A| |● at rotarycodingswitch on switchposition 4|202 A| |● at rotarycodingswitch on switchposition 5|216 A| |● at rotarycodingswitch on switchposition 6|230 A| |● at rotarycodingswitch on switchposition 7|244 A| |● at rotarycodingswitch on switchposition 8|258 A| |● at rotarycodingswitch on switchposition 9|272 A| |● at rotarycodingswitch on switchposition 10|286 A| |● at rotarycodingswitch on switchposition 11|300 A| |● at rotarycodingswitch on switchposition 12|314 A| |● at rotarycodingswitch on switchposition 13|328 A| |● at rotarycodingswitch on switchposition 14|342 A| |● at rotarycodingswitch on switchposition 15|356 A| |● at rotarycodingswitch on switchposition 16|370 A| |● minimum|160 A| |**minimum load[%]**|15 %; Relative to smallest settable Ie| |**power loss[W] for rated value of the current at AC**|| |● at 40 °C after startup|36 W| |● at 50 °C after startup|29 W| |● at 60 °C after startup|24 W| |**power loss[W] at AC at current limitation 350 %**|| |● at 40 °C duringstartup|3 726 W| |● at 50 °C duringstartup|3 124 W| |● at 60 °C duringstartup|2 748 W| |**type of the motor protection**|Electronic, trippingin the event of thermal overload of the motor| |**Control circuit/ Control**|| |**type of voltage of the control supply voltage**|AC/DC| |**control supply voltage at AC**|| |● at 50 Hz rated value|24 V| |● at 60 Hz rated value|24 V| |**relative negative tolerance of the control supply voltage at**<br>**AC at 50 Hz**|-20 %| |**relative positive tolerance of the control supply voltage at**<br>**AC at 50 Hz**|20 %| |**relative negative tolerance of the control supply voltage at**<br>**AC at 60 Hz**|-20 %| |**relative positive tolerance of the control supply voltage at**<br>**AC at 60 Hz**|20 %| |**control supply voltage frequency**|50 ... 60 Hz| |**relative negative tolerance of the control supply voltage**<br>**frequency**|-10 %| |**relative positive tolerance of the control supply voltage**<br>**frequency**|10 %| |**control supply voltage at DC rated value**|24 V| |**relative negative tolerance of the control supply voltage at**<br>**DC**|-20 %| |**relative positive tolerance of the control supply voltage at**<br>**DC**|20 %| |**control supply current in standby mode rated value**|160 mA| |**holding current in bypass operation rated value**|490 mA| |**inrush current by closing the bypass contacts maximum**|7.6 A| |inrush current peak at application of control supply voltage<br>maximum|3.3 A| |duration of inrush current peak at application of control supply<br>voltage|12.1 ms| |**design of the overvoltage protection**|Varistor| |**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<br>breaker (Icu= 600 A), C6 miniature circuit breaker (Icu= 300 A); Is not part of| Subject to change without notice © Copyright Siemens 3RW50756AB05 Page 3/7 5/31/2026 ||scope of supply| |---|---| |**Inputs/ Outputs**|| |**number of digital inputs**|1| |**number of digital outputs**|3| |● notparameterizable|2| |**digital output version**|2 normally-open contacts(NO)/ 1 changeover contact(CO)| |**number of analog outputs**|1| |**switching capacity current of the relay outputs**|| |● at AC-15 at 250 V rated value|3 A| |● at DC-13 at 24 V rated value|1 A| |**Installation/ mounting/ dimensions**|| |**mounting position**|with vertical mounting surface +/-90° rotatable, with vertical mounting surface<br>+/- 22.5° tiltable to the front and back| |**fastening method**|screw fixing| |**height**|230 mm| |**width**|160 mm| |**depth**|282 mm| |required spacingwith side-by-side mounting|| |● forwards|10 mm| |● backwards|0 mm| |● upwards|100 mm| |● downwards|75 mm| |● at the side|5 mm| |**weight without packaging**|7.3 kg| |**Connections/ Terminals**|| |**type of electrical connection**|| |● for main current circuit|busbar connection| |● for control circuit|screw-type terminals| |**width of connection bar maximum**|35 mm; with connection cover 3RT1966-4EA1 maximum length 45 mm| |**type of connectable conductor cross-sections for main**<br>**contacts for box terminal**|| |● usingthe front clamping point solid|95 ... 300 mm²| |● using the front clamping point finely stranded with core<br>endprocessing|70 ... 240 mm²| |● using the front clamping point finely stranded without core<br>endprocessing|70 ... 240 mm²| |● usingthe front clamping point stranded|95 ... 300 mm²| |● usingthe back clamping point solid|120 ... 240 mm²| |● r box terminal usingthe back clamping point|250 ... 500 kcmil| |● usingboth clamping points solid|min. 2x 70 mm², max. 2x 240 mm²| |● using both clamping points finely stranded with core end<br>processing|min. 2x 50 mm², max. 2x 185 mm²| |● using both clamping points finely stranded without core<br>endprocessing|min. 2x 50 mm², max. 2x 185 mm²| |● usingboth clamping points stranded|min. 2x 70 mm², max. 2x 240 mm²| |● using the back clamping point finely stranded with core<br>endprocessing|120 ... 185 mm²| |● using the back clamping point finely stranded without core<br>endprocessing|120 ... 185 mm²| |● usingthe back clamping point stranded|120 ... 240 mm²| |**type of connectable conductor cross-sections**|| |● for AWG cables for main current circuit solid|2/0 ... 500 kcmil| |● for DIN cable lugfor main contacts stranded|50 ... 240 mm²| |● for DIN cable lugfor main contacts finelystranded|70 ... 240 mm²| |**type of connectable conductor cross-sections**|| |● for control circuit solid|1x(0.5 ... 4.0 mm²), 2x(0.5 ... 2.5 mm²)| |● for control circuit finelystranded with core endprocessing|1x(0.5 ... 2.5 mm²), 2x(0.5 ... 1.5 mm²)| |● for AWG cables for control circuit solid|1x(20 ... 12), 2x(20 ... 14)| |**wire length**|| |● between soft starter and motor maximum|800 m| |● at the digital inputs at AC maximum|1 000 m| Subject to change without notice © Copyright Siemens 3RW50756AB05 Page 4/7 5/31/2026 |**tightening torque**|| |---|---| |● for main contacts with screw-type terminals|14 ... 24 N·m| |● for auxiliary and control contacts with screw-type<br>terminals|0.8 ... 1.2 N·m| |**tightening torque[lbf·in]**|| |● for main contacts with screw-type terminals|124 ... 210 lbf·in| |● for auxiliary and control contacts with screw-type<br>terminals|7 ... 10.3 lbf·in| |**Ambient conditions**|| |installation altitude at height above sea level maximum|5 000 m| |**ambient temperature**|| |● duringoperation|-25 ... +60 °C; Please observe deratingat temperatures of 40 °C or above| |● duringstorage and transport|-40 ... +80 °C| |**environmental category**|| |● during operation according to IEC 60721|3K6 (no ice formation, only occasional condensation), 3C3 (no salt mist), 3S2<br>(sand must notget into the devices), 3M6| |● during storage according to IEC 60721|1K6 (only occasional condensation), 1C2 (no salt mist), 1S2 (sand must not get<br>inside the devices), 1M4| |● duringtransport accordingto IEC 60721|2K2, 2C1, 2S1, 2M2(max. fall height 0.3 m)| |**Electromagnetic compatibility**|| |**EMC emitted interference**|acc. to IEC 60947-4-2: Class A| |**Communication/ Protocol**|| |**communication module is supported**|| |● PROFINET standard|Yes| |● EtherNet/IP|Yes| |● Modbus RTU|Yes| |● Modbus TCP|Yes| |● PROFIBUS|Yes| |**UL/CSA ratings**|| |**manufacturer's article number**|| |**● of the fuse**|| |— usable for Standard Faults up to 575/600 V<br>accordingto UL|Type: Class L, max. 1200 A; Iq = 18 kA| |— usable for High Faults up to 575/600 V according to<br>UL|Type: Class L, max. 1200 A; Iq = 100 kA| |**operating power[hp] for 3-phase motors**|| |● at 200/208 V at 50 °C rated value|100 hp| |● at 220/230 V at 50 °C rated value|125 hp| |● at 460/480 V at 50 °C rated value|250 hp| |● at 575/600 V at 50 °C rated value|300 hp| |Electrical Safety|| |**protection class IP on the front according to IEC 60529**|IP00; IP20 with cover| |**touch protection on the front according to IEC 60529**|finger-safe, for vertical contact from the front with cover| |**ATEX**|| |**Safety Integrity Level (SIL) according to IEC 61508 relating**<br>**to ATEX**|SIL 1| |**PFHD with high demand rate according to IEC 61508**<br>**relating to ATEX**|9E-6 1/h| |**PFDavg with low demand rate according to IEC 61508**<br>**relating to ATEX**|0.09| |**hardware fault tolerance according to IEC 61508 relating to**<br>**ATEX**|0| |**T1 value for proof test interval or service life according to**<br>**IEC 61508 relating to ATEX**|3 a| |**certificate of suitability**|| |● ATEX|Yes| |● IECEx|Yes| |● UKEX|Yes| |**Approvals Certificates**|| |Environmental Product Declaration|| |● global warming potential [CO2 eq] / during manufacturing<br>● global warming potential [CO2 eq] / during sales|87.4 kg| ||2.05 kg| Subject to change without notice © Copyright Siemens 3RW50756AB05 Page 5/7 5/31/2026 ● global warming potential [CO2 eq] / during operation 407 kg ● global warming potential [CO2 eq] / after end of life -32.4 kg ● global warming potential [CO2 eq] / total 464 kg **Environment General Product Approval** Environmental Confirmations ~~—"~~ tee Se © FAL **General Product Approval EMV For use in hazardous locations** Miscellaneous ~~aa~~ **Test Certificates Maritime application other** Type Test CertificConfirmation ~~—~~ ates/Test Report ©& =a Oo **other** Confirmation ~~~~~ QC PASS ~~e~~ **Further information** ~~e~~ **Information on the packaging** https://support.industry.siemens.com/cs/ww/en/view/109813875 **Information for data generation and storage** https://support.industry.siemens.com/cs/ww/en/view/109995012 **Information- and Downloadcenter (Catalogs, Brochures,…)** https://www.siemens.com/ic10 **Industry Mall (Online ordering system)** https://mall.industry.siemens.com/mall/en/en/Catalog/product?mlfb=3RW5075-6AB05 **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/3RW5075-6AB05 **Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)** https://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3RW5075-6AB05&lang=en **Cax online generator** https://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3RW5075-6AB05 **Characteristic curves** https://curves.simaris.siemens.com/curves/<mmp_prod_noCOMP="HAUPT"></mmp_prod__no> **Characteristic: Tripping characteristics, I²t, Let-through current** https://support.industry.siemens.com/cs/ww/en/ps/3RW5075-6AB05/char **Characteristic: Installation altitude** https://www.automation.siemens.com/bilddb/index.aspx?gridview=view2&objkey=G_NSB0_XX_01704&showdetail=true&view=Search **Simulation Tool for Soft Starters (STS)** https://support.industry.siemens.com/cs/ww/en/view/101494917 Subject to change without notice © Copyright Siemens 3RW50756AB05 Page 6/7 5/31/2026 **last modified:** 4/4/2026 Subject to change without notice © Copyright Siemens 3RW50756AB05 Page 7/7 5/31/2026
Updated at April 28, 2026
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