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MEAN WELL KNX Switched Mode DIN Rail Power Supply 1.28A 38.4W 30V DC Output KNX-40E-1280D
Specifications
| Country of Origin | China |
|---|---|
| Brand | MEAN WELL |
| Power | 38.4W |
| Efficiency | 86% |
| Height | 90mm |
| Model | KNX-40E-1280D |
| 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 |
Key Features
- Designed for intelligent home control and modern building automation.
- Compact size with 4SU width and installation on DIN rail TS-35/7.5 or 15.
- Input voltage range accommodates 180-264 VAC and 176-280 VDC for flexible power sources.
- Protection features include short circuit, overload, and over voltage safeguards.
- Operating temperature range from -30°C to 70°C for versatile environmental use.
- Efficiency of 86% with IP20 rating ensures reliable and efficient operation.
- Includes LED indicators for normal operation, bus reset, and bus overload status.
- Meets multiple standards and approvals including CE, EN61000-3-2, EN50491 series.
Product Description
MEAN WELL KNX-40E-1280D is a compact switched mode DIN Rail power supply that provides 38.4W of power with a stable 1.28A DC output current and a maximum output voltage of 30V DC. Designed with an integrated choke and suitable for SELV operation, it supports a wide input range of 180-264 VAC and 176-280 VDC to ensure versatile compatibility with various power sources.
The power supply features robust protections including short circuit, overload, and over voltage safeguards, making it short-circuit-proof and reliable for demanding industrial and commercial environments. Cooling is achieved via free air convection without requiring additional fans, maintaining silent operation and reducing maintenance.
Its IP20 enclosure provides adequate protection against solid objects, while the operating temperature range from -30°C to 70°C supports use in harsh conditions. The device includes LED indicators that display normal operation status, bus reset, and overload conditions, enabling quick diagnostics and maintenance.
The KNX-40E-1280D power supply complies with international standards and certifications such as CE, EN61000-3-2, EN50491-3, and others, ensuring safe and approved performance. The compact 4SU width and DIN rail mounting capability (TS-35/7.5 or 15) allow for easy integration into electrical panels and control cabinets.
Typical applications include intelligent home control systems, modern building automation, lighting control, HVAC management, security systems, blinds and shutters automation, monitoring systems, energy management, and alarm monitoring units.
Manufactured in China, this MEAN WELL unit exemplifies quality and reliability for industrial and commercial electrical supply requirements. Designed for intelligent home control and automation applications. Compact size with 4SU width and DIN rail mounting for easy installation.
Wide input voltage range for AC and DC sources. Multiple protection functions ensure operational safety. Operational temperature range suitable for diverse environments. Energy efficient with 86% efficiency rating. Compliance with CE and multiple EN standards.
IP20 rated enclosure for solid particle protection. LED indicators for operational status and faults. Manufactured in China for international quality standards. Explore more DIN Rail Power Supplies and MEAN WELL brand products on EnvMart for trusted industrial electrical solutions.
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Frequently Asked Questions
The output current of this model is 1.28A.
The maximum output voltage is 30V DC.
It accommodates an input voltage range of 180-264 VAC and 176-280 VDC.
The dimensions are 90mm in height, 72mm in width, and 57mm in depth.
The efficiency rating is 86%.
It features protections against short circuit, overload, and over voltage.
The operating temperature range is from -30°C to 70°C.
The IP rating is IP20, providing protection against solid objects.
This model has one output.
It is designed for DIN rail mounting on TS-35/7.5 or 15.
It is suitable for intelligent home control systems, building automation, lighting control, HVAC management, and security systems.
It is manufactured in China.
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