# Isolated DIN Rail Mount DC/DC Converter, 2:1, 20 W, 1 Output, 5 VDC, 10 A

![Product image](https://novapart.co/image/farnell:3558226/)

**URL**: https://novapart.co/products/6ES7407-0KR02-0AA0/isolated-din-rail-mount-dc-converter-21-20-w-1
**SKU**: 6ES7407-0KR02-0AA0
**Manufacturer**: SIEMENS
**Category**: Power & Line Protection || Power Supplies || DC / DC Converters || Isolated DIN Rail Mount DC / DC Converters
**Price**: €1112.7300
**Stock**: 10+

## Specifications

| Parameter | Value |
|---|---|
| Depth | 217mm |
| Width | 50mm |
| Height | 290mm |
| Input Ratio | 2:1 |
| Product Range | SIMATIC S7-400 Series |
| No. Of Outputs | 1 Output |
| Output Power Max | 20W |
| Isolation Voltage | - |
| Output Regulation | - |
| Input Voltage Dc Max | 230V |
| Input Voltage Dc Min | 120V |
| Input Voltage Dc Nom | - |
| Output Current - Output 1 | 10A |
| Output Current - Output 2 | - |
| Output Voltage - Output 1 | 5VDC |
| Output Voltage - Output 2 | - |
| Power Supply Applications | - |
| Dc / Dc Converter Output Type | - |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3558226/)

**6ES7407-0KR02-0AA0** 

**Data sheet** 

SIMATIC S7-400, Power supply PS407; 10 A, wide range, UC 120/230V, 5 V DC/10 A, for redundant use 

|**Supply voltage**||
|---|---|
|Rated value(DC)||
|● 120 V DC|Yes|
|● 230 V DC|Yes|
|Rated value(AC)||
|● 120 V AC|Yes|
|● 230 V AC|Yes|
|Line frequency||
|● Rated value 50 Hz|Yes|
|● Rated value 60 Hz|Yes|
|●permissible range, lower limit|47 Hz|
|●permissible range, upper limit|63 Hz|
|Mains buffering||
|● Mains/voltage failure stored energytime|20 ms|
|● Mains bufferingaccordingto NAMUR recommendation|Yes|
|**Input current**||
|Rated value at 120 V DC|1 A|
|Rated value at 230 V DC|0.5 A|
|Rated value at 120 V AC|0.9 A|
|Rated value at 230 V AC|0.5 A|
|Inrush current, max.|63 A; Full width at half maximum 1 ms|
|Leakage current, max.|5 mA|
|**Output voltage**||
|Type of output voltage|DC|
|Rated value(DC)||
|● 5 V DC|Yes|
|● 24 V DC|Yes|
|**Output current**||
|for backplane bus(5 V DC), max.|10 A; no base load required|
|for backplane bus(24 V DC), max.|1 A; idling-proof|
|Short-circuit protection|Yes|
|**Power**||
|Active power input, typ.|95 W|
|**Power loss**||
|Power loss, typ.|20 W|
|**Battery**||
|Backupbattery||
|● Backup battery (optional)|Yes; 1x lithium AA; 3.6 V / 2.2 Ah|



6ES74070KR020AA0 Page 1/3 

Subject to change without notice © Copyright Siemens 

5/18/2026 

|**Hardware configuration**<br>~~—EE——————E~~|**Hardware configuration**<br>~~—EE——————E~~|**Hardware configuration**<br>~~—EE——————E~~|**Hardware configuration**<br>~~—EE——————E~~|
|---|---|---|---|
|Slots<br>~~—EE——————E~~||||
|● required slots|2|||
|**Potential separation**<br>~~|~~||||
|primary/secondary<br>~~|~~|Yes<br>~~|~~|||
|**Isolation**<br>~~|~~||||
|Overvoltage category<br>~~|~~|II<br>~~|~~|||
|**EMC**<br>~~————EE~~||||
|Compliance with line harmonic distortion limits<br>~~————EE~~||||
|● Compliance with line harmonic distortion acc. to IEC<br>61000-3-2, IEC 61000-3-3|Yes|||
|**Degree and class of protection**<br>~~|~~||||
|Equipment protection class<br>~~|~~|I, with protective conductor<br>~~|~~|||
|**Standards, approvals, certificates**<br>~~|~~||||
|FM approval<br>~~|~~|Yes; Ta: 0 °C to 70 °C T4<br>~~|~~|||
|BIS|Yes|||
|**Ambient conditions**<br>~~—E————~~||||
|Ambient temperature duringoperation<br>~~—E————~~||||
|● min.|0 °C|||
|● max.|60 °C|||
|**Connection method**<br>~~a~~||||
|Design of electrical connection<br>~~a~~|3x 1.5 mm², solid or stranded wire with end sleeve, external diameter 3 mm to 9<br>mm<br>~~a~~|||
|**Dimensions**<br>~~|~~||||
|Width<br>~~|~~<br>~~Oc~~|50 mm<br>~~|~~<br>|||
|Height<br>~~Oc~~|290 mm<br>|||
|Depth<br>~~Oc~~|217 mm<br>|||
|**Weights**<br>||||
|Weight, approx.<br>|1 200g<br>|||
|**Classifications**<br>~~|~~||||
|eClass<br>eClass<br>eClass<br>eClass<br>eClass<br>eClass<br>eClass<br>ETIM<br>ETIM<br>ETIM<br>ETIM<br>IDEA<br>UNSPSC<br>~~|~~||**Version**<br>~~|~~|**Classification**<br>~~|~~|
|||14<br>12<br>9.1<br>9<br>8<br>7.1<br>6<br>10<br>9<br>8<br>7<br>4<br>15|27-24-22-09<br>27-24-22-09<br>27-24-22-09<br>27-24-22-09<br>27-24-22-09<br>27-24-22-09<br>27-24-22-09<br>EC000599<br>EC000599<br>EC000599<br>EC000599<br>3575<br>32-15-17-06|
|**Approvals / Certificates**<br>~~|~~||||
|**General Product Approval**<br>~~|~~||||



||**Version**|**Classification**|
|---|---|---|
|eClass|14|27-24-22-09|
|eClass|12|27-24-22-09|
|eClass|9.1|27-24-22-09|
|eClass|9|27-24-22-09|
|eClass|8|27-24-22-09|
|eClass|7.1|27-24-22-09|
|eClass|6|27-24-22-09|
|ETIM|10|EC000599|
|ETIM|9|EC000599|
|ETIM|8|EC000599|
|ETIM|7|EC000599|
|IDEA|4|3575|
|UNSPSC|15|32-15-17-06|



~~|~~ **Approvals / Certificates General Product Approval** 

C€ce UKga ~~——~~ Miscellaneous **General Product Approval EMV** 

**For use in hazardous locations** 

**Maritime application** 

6ES74070KR020AA0 Page 2/3 

Subject to change without notice © Copyright Siemens 

5/18/2026 

**==> picture [380 x 260] intentionally omitted <==**

**----- Start of picture text -----**<br>
China RoHS Miscellaneous & & FM<br>Maritime application<br>-<br>NK / Nippon Kaiji Ky<br>okai<br>i)  “- —"<br>Maritime application Environment<br>-<br>CCS (China Classifica<br>tion Society) — &§<br>as EPD<br>last modified: 6/7/2025 4<br>**----- End of picture text -----**<br>


6ES74070KR020AA0 Page 3/3 

Subject to change without notice © Copyright Siemens 

5/18/2026 



## Links

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- [Supplier page](https://es.farnell.com/siemens/6es7407-0kr02-0aa0/dc-dc-converter-5v-10a/dp/3558226)
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