QP-320D - Power Supply Mean Well - Free user manual and instructions
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| Product Type | Power Supply |
| Model | QP-320D |
| Brand | Mean Well |
| Output Power | 320W |
| Output Voltages | +5V, +12V, -12V, +24V |
| Input Voltage | 90-264 VAC |
| Input Frequency | 47-63 Hz |
| Efficiency | Typically 85% |
| Protections | Short circuit, over voltage, over load |
| Cooling | Convection cooled |
| Operating Temperature | -20°C to +60°C |
| Dimensions (L x W x H) | 215 x 115 x 50 mm |
| Weight | 1.1 kg |
| MTBF | ≥100,000 hours |
| Output Ripple & Noise | ≤150 mVp-p |
| Line Regulation | ±0.5% |
| Load Regulation | ±1% for main outputs |
| Safety Standards | UL, CUL, TUV, CB, CE |
| EMC Standards | EN55022 Class B |
| Connection | Screw terminal block |
| Maintenance | Keep clean and dry; no user serviceable parts |
Frequently Asked Questions - QP-320D Mean Well
What is the total output power of the QP-320D?
The QP-320D delivers a total output power of 320W with four outputs: +5V, +12V, -12V, and +24V.
What input voltage does the QP-320D accept?
It accepts a universal AC input from 90 to 264 VAC at 47-63 Hz.
Does the QP-320D have protection features?
Yes, it includes short circuit protection, over voltage protection, and over load protection.
What is the operating temperature range?
The operating temperature range is -20°C to +60°C with derating required at higher temperatures.
What are the dimensions of the QP-320D?
The dimensions are 215 x 115 x 50 mm (L x W x H).
Is the QP-320D convection cooled?
Yes, it is convection cooled which means no internal fan is required for operation.
What safety certifications does the QP-320D have?
It complies with UL, CUL, TUV, CB, and CE standards.
How do I clean and maintain the power supply?
Keep the unit free from dust and moisture. Use a dry cloth to clean the exterior. There are no user-serviceable parts inside.
What is the expected lifespan of the QP-320D?
The MTBF (Mean Time Between Failures) is ≥100,000 hours at full load and 25°C ambient.
Can I adjust the output voltages?
The main outputs (+5V, +12V, +24V) may have fixed or adjustable trimmers. Refer to the manual for specific adjustment ranges. Typically, they are fixed but some models allow ±10% adjustment.
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USER MANUAL QP-320D Mean Well
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Product information
Brand : Mean Well
Model : QP-320D
Category : Power Supply