Description
The Mean Well KNX-40E-1280D is an industrial-grade, 1280mA KNX power supply engineered to provide reliable 30V DC power with an integrated choke for KNX bus systems. Featuring advanced diagnostic capabilities, this enclosed DIN-rail unit ensures continuous monitoring of bus voltage, current, and internal temperature, making it a critical component for complex building automation and smart grid infrastructures.
Technical Specifications:
Manufacturer: Mean Well
Model Number: KNX-40E-1280D
Output Voltage: 30V DC (with integrated KNX choke)
Output Current: 1280 mA
Input Voltage Range: 180 to 264 V AC
Rated Power: 38.4 W
Diagnostic Function: Integrated KNX interface for voltage, current, and temperature monitoring
Mounting Type: DIN Rail TS-35/7.5 or 15 (4SU width, 72mm)
Operating Temperature: -30°C to +70°C
Efficiency: 85.5%
Protection Features: Short circuit, Overload, Over voltage
Cooling Method: Free air convection
Weight: 0.25 kg
Dimensions: 72 x 90 x 57 mm
Certifications: CE, UKCA, KNX approved
Application Scenario:
Designed for large-scale commercial building automation, the KNX-40E-1280D excels in environments requiring high-density device integration. Its 1280mA capacity supports up to 64 standard KNX devices on a single line segment. The integrated diagnostic function transmits real-time operational data directly to the central control matrix, allowing facility managers to preemptively identify bus overloads or voltage drops before system failure occurs.
Procurement and Integration:
This unit maintains strict Technical Compatibility with all certified KNX topologies. Built to Original Engineering standards, it guarantees seamless integration and extended lifecycle value for critical infrastructure. Please contact our technical sales team to confirm current Lead Time and volume availability.
Key Attributes
Input Voltage: 180 ~ 264 VAC / 176 ~ 280 VDC
Output Current: 1280 mA
Output Voltage: 30 V
Place of Origin: Taiwan, China
Output Power: 38.4 W
Model Number: KNX-40E-1280D
Brand Name: MeanWell
Output Frequency: 47~63Hz
Output Type: Single
Product Name: KNX-40E-1280D 30V DC 1280mA With Diagnostic Meanwell Power Supply
Efficiency: 86 %
Ripple & Noise: 100 mVp-p
Overload: 205~235%
Working Temp: -30 ~ +70°C
Humidity: 20 ~ 95% RH
Frequency Range: 47~63 Hz
Certification: TUV / EAC / TP / TC
Dimension: 72 * 90 * 57 mm
Weight: 0.328 Kg
Packaging and Delivery
Packaging Details: 40*30*30cm
Port of dispatch: Taiwan
Selling Units: Single item
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