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MEAN WELL KNX Series Switched Mode DIN Rail Power Supply 264 V AC, 280 V DC Input, 30 V DC, 1.28 A Output, 38.4 KNX-40E-1280
Specifications
| Country of Origin | China |
|---|---|
| Brand | MEAN WELL |
| Power | 38.4W |
| Efficiency | 86% |
| Height | 90mm |
| Model | KNX-40E-1280 |
| Depth | 57mm |
| IP Rating | IP20 |
| Width | 72mm |
| Series | KNX |
| Output Current | 1.28A |
| Maximum Operating Temperature | 70°C |
| Sub Type | Switched Mode |
| Minimum Operating Temperature | -30°C |
| Number of outputs | 1 |
| Maximum Input Voltage | 264, 280V ac |
| Electrical Phase | 1 |
| Protections | Short Circuit/ overload (Short-Circuit-Proof)/ Over Voltage |
| Maximum Output Voltage | 30V dc |
| Minimum Input Voltage | 176, 180V dc |
| Pay online using | Or choose to pay later via bank transfer |
| RS Stock No. | 183-4139 Brand: [MEAN WELL](https://in.rsdelivers.com/brands/mean-well)Manufacturers Part No.: KNX-40E-1280 Distrelec Article No.: 30372435 |
Key Features
- Compact KNX series power supply designed for building automation applications.
- Supports wide input voltage range of 176-264 V AC and 180-280 V DC.
- High efficiency of 86% for reliable power conversion.
- Integrated protections including short circuit, overload, and over voltage.
- Cooling by free air convection with LED indicators for operation status.
- IP20 rated enclosure suitable for indoor use.
- Compliance with multiple standards and approvals including CE and EN norms.
- Operating temperature range from -30°C to 70°C ensuring wide environmental suitability.
Product Description
MEAN WELL KNX-40E-1280 is a high-performance switched mode DIN Rail Power Supply in the KNX series offering a power output of 38.4 W at 30 V DC and 1.28 A current. Designed for intelligent home control and modern building automation systems, this robust power supply accepts a wide AC/DC input voltage range of 176-264 V AC and 180-280 V DC, facilitating versatile installation conditions.
It features an integrated choke for noise suppression, short circuit, overload, and over voltage protections ensuring safe and reliable operation. The compact unit with 4 SU width is cooled by natural convection, eliminating the need for fans and reducing maintenance. LED indicators provide clear visual status of normal operation, bus reset, and bus overload conditions.
The unit is suitable for DIN rail mounting (TS-35/7.5 or 15), with IP20 protection rating making it ideal for indoor installations. It complies with multiple safety and electromagnetic compatibility standards including EN61000-4-2 and EN61558 series, as well as CE marking, ensuring industrial and commercial compliance.
This power supply is applicable in various industrial and commercial automation scenarios including HVAC systems, lighting control, security systems, blinds and shutters automation, energy management, alarm monitoring, and other modern building automation applications.
With a rugged design and extended operating temperature range from -30°C to 70°C, it is suitable for challenging environments and guarantees consistent performance. Made in China, it undergoes 100% full load burn-in tests to assure quality and durability.
Compact design suitable for DIN rail mounting in building automation systems. Wide input voltage range supports AC and DC sources. High efficiency reduces energy losses and heat generation. Multiple built-in protections increase operational safety and reliability.
Suitable for a variety of smart building applications across industrial and commercial sectors. Compliant with relevant EN and CE standards for safety and EMC. Extended operating temperature range for tough environmental conditions.
LED status indicators facilitate easy monitoring and troubleshooting. Explore the range of DIN rail power supplies at EnvMart for reliable and industrial-grade power solutions.
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Frequently Asked Questions
It accepts a wide input voltage range of 176-264 V AC and 180-280 V DC.
The output voltage is 30 V DC with a maximum output current of 1.28 A.
This unit has dimensions of 90 mm in height, 72 mm in width, and 57 mm in depth.
It features protections against short circuit, overload, and over voltage.
The operating temperature range is from -30°C to 70°C, making it suitable for various environments.
Cooling is achieved through natural convection, eliminating the need for fans.
It has an IP20 rating, indicating it is suitable for indoor use only.
It is applicable in building automation systems, including HVAC, lighting control, and security systems.
This unit is designed for DIN rail mounting, compatible with TS-35/7.5 or 15.
It is manufactured in China and undergoes 100% full load burn-in tests to assure quality.
It complies with multiple safety and electromagnetic compatibility standards, including CE and EN61000-4-2.
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