6EP1536-3AA00

**6EP1536-3AA00** 

**Data sheet** 

SITOP PSU400M/DC/DC/600V/24V/20A SITOP PSU400M 20 A DC/DC converter input: 600 V DC output: 24 V DC/20 A 

|———S—<br>ee<br>Ss|SITOP PSU400M/DC/DC/600V/24V/20A<br>SITOP PSU400M 20 A DC/DC converter input: 600 V DC output: 24 V DC/20 A|
|---|---|
|**General information**||
|Technical Product Detail Page|https://i.siemens.com/1P6EP1536-3AA00|
|**input**||
|type of thepower supplynetwork|DC voltage|
|supply voltage at AC|startup from 340 V DC; derating necessary at 300 ... 400 V DC and 824 ... 900<br>V DC|
|supplyvoltage at DC|600 V|
|input voltage at DC|300 ... 900 V|
|overvoltage overload capability|Shutdown at Vin > 900 V DC|
|input current at DC||
|● at rated input voltage 600 V|0.85 A|
|current limitation of inrush current at 25 °C maximum|8 A|
|I2t value maximum|0.02 A²·s|
|fuse protection type|yes, cut-off capacity20 kA; L/R < 2 ms("+" and "-" input)|
|**output**||
|voltage curve at output|Controlled, isolated DC voltage|
|output voltage at DC rated value|24 V|
|output voltage||
|● at output 1 at DC rated value|24 V|
|output voltage adjustable|Yes; viapotentiometer|
|adjustable output voltage|24 ... 28.8 V; max. 480 W|
|relative overall tolerance of the voltage|3 %|
|relative controlprecision of the output voltage||
|● on slow fluctuation of input voltage|0.3 %|
|● on slow fluctuation of ohm loading|0.3 %|
|residual ripple||
|● maximum|150 mV|
|● typical|30 mV|
|voltagepeak||
|● maximum|200 mV|
|● typical|100 mV|
|displayversion for normal operation|Green LED for 24 V OK,green flashingLED for start delay|
|type of signal at output|Relaycontact(NO contact, rating60 V DC/ 0.3 A; 30 V DC/1 A)for 24 V OK|
|behavior of the output voltage when switchingon|No overshoot of Vout(soft start)|
|response delaymaximum|0.1 s; 10 s adjustable usingswitch|
|voltage increase time of the output voltage||
|● maximum|150 ms|
|output current||
|● rated value|20 A|



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||● rated range|0 ... 20 A; +60 ... +70 °C: Derating5.5%/K||
|---|---|---|---|
||supplied activepower typical|480 W||
||short-term overload current|||
||● on short-circuitingduringthe start-uptypical|40 A||
||● at short-circuit duringoperation typical|60 A||
||duration of overloadingcapabilityfor excess current|||
||● on short-circuitingduringthe start-up|150 ms||
||● at short-circuit duringoperation|25 ms||
||constant overload current|||
||● on short-circuitingduringthe start-uptypical|23 A||
||bridgingof equipment|Yes; switchable characteristic||
||number of parallel-switched equipment resources for increasing<br>the power|2||
||**efficiency**|||
||efficiencyinpercent|95 %||
||power loss[W]|||
||● at rated output voltage for rated value of the output<br>current typical|25 W||
||**closed-loop control**|||
||relative control precision of the output voltage with rapid<br>fluctuation of the input voltage by+/- 15% typical|1.5 %||
||relative control precision of the output voltage load step of<br>resistive load 50/100/50 % typical|1.5 %||
||settingtime|||
||● load step50 to 100% typical|1 ms||
||● load step100 to 50% typical|1 ms||
||settingtime|||
||● maximum|5 ms||
||**protection and monitoring**|||
||design of the overvoltageprotection|< 33 V||
||propertyof the output short-circuitproof|Yes||
||design of short-circuitprotection|Alternatively, constant current characteristic approx. 22 A or latchingshutdown||
||● typical|22 A||
||overcurrent overload capability|||
||● in normal operation|overload capability150 % Iout rated upto 5 s/min||
||enduringshort circuit current RMS value|||
||● typical|22 A||
||display version for overload and short circuit|LED yellow for "overload", LED red for "latching shutdown", red LED flashing<br>for "Overtemperature"||
||**safety**|||
||galvanic isolation between input and output|Yes||
||galvanic isolation|Output voltage: PELV(IEC 61010-2-201)||
||operatingresourceprotection class|Class I||
||protection class IP|IP20||
||**EMC**|||
||standard|||
||● for emitted interference|EN 55022 Class A(emission)||
||● for mains harmonics limitation|-||
||● for interference immunity|EN 61000-6-2||
||**standards, specifications, approvals**|||
||certificate of suitability|||
||● CE marking|Yes||
||● UL approval|Yes; cULus-Listed(UL 508, CSA C22.2 No. 107.1), File E197259||
||● UKCA marking|Yes||
||● EAC approval|Yes||
||● RegulatoryCompliance Mark(RCM)|Yes||
||● NEC Class 2|No||
||type of certification|||
||● CB-certificate|Yes||
||MTBF at 40 °C|622 277 h||



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|**standards, specifications, approvals hazardous environments**|**standards, specifications, approvals hazardous environments**|
|---|---|
|certificate of suitability||
|● IECEx|No|
|● ATEX|No|
|● ULhazloc approval|No|
|● FM registration|No|
|**standards, specifications, approvals marine classification**||
|shipbuildingapproval|Yes|
|Marine classification association||
|● American Bureau of ShippingEurope Ltd.(ABS)|No|
|● French marine classification society (BV)|No|
|● Det Norske Veritas(DNV)|Yes|
|● Lloyds Register of Shipping (LRS)|No|
|**standards, specifications, approvals Environmental Product Declaration**||
|Environmental Product Declaration|Yes|
|global warming potential[CO2 eq]||
|● total|662.3 kg|
|● duringmanufacturing|28.7 kg|
|● duringoperation|633.1 kg|
|● after end of life|0.24 kg|
|**ambient conditions**||
|ambient temperature||
|● duringoperation|-25 ... +70 °C; with natural convection|
|● duringtransport|-40 ... +85 °C|
|● duringstorage|-40 ... +85 °C|
|environmental categoryaccordingto IEC 60721|Climate class 3K3, 5 ... 95% no condensation|
|**connection method**||
|type of electrical connection|screw terminal|
|● at input|DC input, +, -, PE: 1 screw terminal each for 0.2 ... 6/4 mm² single-core/finely<br>stranded|
|● at output|+, -: 2 screw terminals each for 0.2 ... 6/4 mm² single-core/finelystranded|
|● for auxiliarycontacts|Alarm signals: 2 screw terminals for 0.14 ... 1.5 mm² single-core/finelystranded|
|**mechanical data**||
|width × height × depth of the enclosure|90 × 125 × 125 mm|
|installation width × mountingheight|90 mm × 225 mm|
|required spacing||
|● top|50 mm|
|● bottom|50 mm|
|● left|0 mm|
|● right|0 mm|
|fasteningmethod|Snaps onto DIN rail EN 60715 35x7.5/15|
|● DIN-rail mounting|Yes|
|● S7 rail mounting|No|
|● wall mounting|No|
|housingcan be lined up|Yes|
|net weight|1.2 kg|
|**accessories**||
|mechanical accessories|Device identification label 20 mm × 7 mm, pale turquoise 3RT1900-1SB20|
|**further information internet links**||
|internet link||
|● to website: IndustryMall|https://mall.industry.siemens.com|
|● to webpage: selection aid TIA Selection Tool|https://www.siemens.com/tstcloud|
|● to webpage:power supplies|https://siemens.com/sitop|
|● to website: CAx-Download-Manager|https://siemens.com/cax|
|● to website: IndustryOnline Support|https://support.industry.siemens.com|
|**additional information**||
|other information|Specifications at rated input voltage and ambient temperature +25 °C (unless<br>otherwise specified)|
|**security information**||



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security information Siemens provides products and solutions with industrial cybersecurity functions that support the secure operation of plants, systems, machines and networks. In order to protect plants, systems, machines and networks against cyber threats, it is necessary to implement - and continuously maintain - a holistic, state-of-the-art industrial cybersecurity concept. Siemens’ products and solutions constitute one element of such a concept. Customers are responsible for preventing unauthorized access to their plants, systems, machines and networks. Such systems, machines and components should only be connected to an enterprise network or the internet if and to the extent such a connection is necessary and only when appropriate security measures (e.g. firewalls and/or network segmentation) are in place. For additional information on industrial cybersecurity measures that may be implemented, please visit www.siemens.com/cybersecurity-industry. Siemens’ products and solutions undergo continuous development to make them more secure. Siemens strongly recommends that product updates are applied as soon as they are available and that the latest product versions are used. Use of product versions that are no longer supported, and failure to apply the latest updates may increase customer’s exposure to cyber threats. To stay informed about product updates, subscribe to the Siemens Industrial Cybersecurity RSS Feed under https://www.siemens.com/cert. (V4.7) 

## **Classifications** 

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||||
|---|---|---|
|Version|Classification|
|eClass|14|27-04-07-01|
|eClass|12|27-04-07-01|
|eClass|9.1|27-04-07-01|
|eClass|9|27-04-07-01|
|eClass|8|27-04-90-02|
|eClass|7.1|27-04-90-02|
|eClass|6|27-04-90-02|
|ETIM|10|EC002540|
|ETIM|9|EC002540|
|ETIM|8|EC002540|
|ETIM|7|EC002540|
|IDEA|4|4130|
|UNSPSC|15|39-12-10-04|

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**Approvals Certificates** ~~ee~~ Environmental Product Declaration 

● global warming potential [CO2 eq] / during manufacturing 28.7 kg ● global warming potential [CO2 eq] / during operation 633.1 kg ● global warming potential [CO2 eq] / after end of life 0.24 kg ● global warming potential [CO2 eq] / total 662.3 kg 

**Environment General Product Approval** 

**General Product Approval** 

Manufacturer DeclaraDeclaration of Contion formity **Maritime application** 

China RoHS 

**last modified:** 

5/5/2026 

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