# AC/DC DIN Rail Power Supply (PSU), ITE, 1 Output, 38.4 W, 30 VDC, 1.28 A

![Product image](https://novapart.co/image/farnell:3253206/)

**URL**: https://novapart.co/products/KNX-40E-1280D/ac-dc-din-rail-power-supply-psu-ite-1-output-384-w
**SKU**: KNX-40E-1280D
**Manufacturer**: MEAN WELL
**Price**: €210.3100
**Stock**: 10+
**Lead Time**: 141 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| Product Range | KNX-40E Series |
| No. Of Outputs | 1 Output |
| Output Power Max | 38.4W |
| Current, Output 4 | - |
| Input Voltage Vac | 180V AC to 264V AC |
| Power Supply Output Type | Fixed |
| Output Current - Output 1 | 1.28A |
| Output Current - Output 2 | - |
| Output Current - Output 3 | - |
| Output Voltage - Output 1 | 30VDC |
| Output Voltage - Output 2 | - |
| Output Voltage - Output 3 | - |
| Output Voltage - Output 4 | - |
| Power Supply Applications | ITE |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3253206/)

1280mA KNX Power Supply KNX-40E series ~~De~~ 

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## @ Features 

- EIB / KNX power supply with integrated choke 

- Compact size with 4SU width(72mm) 

- Safety extra low voltage(SELV) 

- Suitablefor TP1-256 

- 180~264VAC input 

- Protections: Short circuit / Overload(short-circuit-proof)/ Over voltage 

- Cooling by free air convection 

- Isolation class I 

* LED indicator for normal operation, bus reset and bus overload 

## B Applications 

* Intelligent home control 

- Modern building automation 

- Lighting control 

- HVAC system 

* Security system 

   - Blinds and shutters 

   - Monitoring systems 

   - Energy management 

   - Alarm monitoring 

- Monitoring of output voltage, output current,bus traffic load and device temperature 

* Provide Wide variety of diagnostic and logic function 

* Over Voltage category II 

- 3 years warranty 

## @ Description 

MEAN WELL,the leading standard power supply manufacturer,continues to promote the buiding automation technology for making a green and sustainable society.After the launch of KNX-20E640,the new KNX power supply KNX-40E-1280(D) is proudly introduced. The KNX Power Supply KNX-40E-1280(D) is a 1280mA power supply with high efficiency and a small footprint of only 4SU(72mm).The device has a KNX bus choke output and additional output for auxiliary power.The -30~+70°C wide temperature operating range can meet all kinds of applications.For troubleshooting,monitoring purpose, output voltage,output current,bus traffic,device temperature and other actual measurement values can be sent via KNX.LED indicators are used in case of normal operation,overload conditions and RESET operation.It is perfectly suitable to power up any products labeled with the KNX trademark. 

## i Model Encoding KNX ~~-4~~ 0E ~~-1~~ 280 _ 

L ~~L~~ Blank: basic function; D: with diagnostic function 

Output current Output wattage Series name Po Type ~~F~~ 1280mA KNXunctionPower Supply NtIn Stock | ===D __:|1280mA KNX Power Supply with Diagnostic function In Stock File Name: KNX-40E-SPEC 2019-05-22 

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## Links

- [View this product on Novapart](https://novapart.co/products/KNX-40E-1280D/ac-dc-din-rail-power-supply-psu-ite-1-output-384-w)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/mean-well/knx-40e-1280d/power-supply-ac-dc-30v-1-28a/dp/3253206)
---

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