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Mean Well QP-320D Power Supply 320W 5V 12V 24V -12V 20A

built-in active PFCPF>0.95quad output
SKU QP-320D
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Overview

QP-320D is the CH1: 5V / CH2: 12V / CH3: 24V / CH4: -12V output model of this series: rated current CH1: 20A / CH2: 10A / CH3: 3A / CH4: 2A, rated power 316W, typical efficiency 83%.

Features

  • Universal AC input / Full range
  • Built-in active PFC function, PF>0.95
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • CH1 & CH2 can be adjusted from -5% ~ +10%
  • With power good and fail signal output
  • Built-in remote sense function for CH1 & CH2
  • LED indicator for power on
  • 100% full load burn-in test
  • 20A peak load capability for 24V channel
  • 3 years warranty

Specifications

QP-320DSpecifications from the official datasheet (2024-11-22 edition)

OUTPUT

OUTPUT NUMBER
CH1 / CH2 / CH3 / CH4
DC VOLTAGE
CH1: 5V / CH2: 12V / CH3: 24V / CH4: -12V
RATED CURRENT
CH1: 20A / CH2: 10A / CH3: 3A / CH4: 2A
CURRENT RANGE
CH1: 2.5 ~ 20A / CH2: 0 ~ 10A / CH3: 0.2 ~ 5A / CH4: 0.2 ~ 2A
PEAK CURRENT
CH1: 20A / CH2: 10A / CH3: 20A,≦1ms(Note5) / CH4: 2A
RATED POWER
316W
RIPPLE & NOISE (max.)Note.2
CH1: 100mVp-p / CH2: 150mVp-p / CH3: 150mVp-p / CH4: 150mVp-p
VOLTAGE ADJ. RANGE
CH1,2:+10,-5%
VOLTAGE TOLERANCENote.3
CH1: ±3.0% / CH2: ±3.0% / CH3: +10,-6% / CH4: ±10%
LINE REGULATION
CH1: ±1.0% / CH2: ±2.0% / CH3: ±2.0% / CH4: ±3.0%
LOAD REGULATION
CH1: ±2.0% / CH2: ±3.0% / CH3: ±6.0% / CH4: ±8.0%
SETUP, RISE TIME
800ms,50ms/230VAC 3000ms,50ms/115VAC at full load
HOLD UP TIME (Typ.)
16ms at full load

INPUT

VOLTAGE RANGE
90 ~ 264VAC 127 ~ 370VDC
FREQUENCY RANGE
47 ~ 63Hz
POWER FACTOR (Typ.)
PF>0.95/230VAC PF>0.98/115VAC at full load
EFFICIENCY (Typ.)
83%
AC CURRENT (Typ.)
4A/115VAC 2A/230VAC
INRUSH CURRENT (Typ.)
25A/115VAC 45A/230VAC
LEAKAGE CURRENT
<2mA / 240VAC

PROTECTION

OVERLOAD
105 ~ 150% rated output power Protection type : Fold back current limiting, recovers automatically after fault condition is removed
OVER VOLTAGE
CH1:5.75 ~ 6.75V / CH2:13.8 ~ 16.2V; Protection type : Shut down o/p voltage, re-power on to recover
OVER TEMPERATURE
Shut down o/p voltage, recovers automatically after temperature goes down

FUNCTION

POWER GOOD / POWER FAIL
10ms/1ms

ENVIRONMENT

WORKING TEMP.
-10 ~ +70℃ (Refer to "Derating Curve")
WORKING HUMIDITY
20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-20 ~ +85℃, 10 ~ 95% RH non-condensing
TEMP. COEFFICIENT
±0.03%/℃ (0 ~ 50℃)
VIBRATION
10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes

SAFETY & EMC (Note 6)

SAFETY STANDARDS
UL62368-1, TUV BS EN/EN62368-1, EAC TP TC 004 approved
WITHSTAND VOLTAGE
I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
ISOLATION RESISTANCE
I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION
Compliance to BS EN/EN55032 (CISPR32) Class B, BS EN/EN61000-3-2,-3, EAC TP TC 020
EMC IMMUNITY
Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN55035, light industry level, EAC TP TC 020

OTHERS

MTBF
1477.2K hrs min. Telcordia SR-332 (Bellcore) ; 213.6K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
215*115*50mm (L*W*H)
PACKING
1.2Kg; 12pcs/15.4Kg/0.9CUFT
Test conditions and notes7
  1. 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
  2. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1μF & 47μF parallel capacitor.
  3. 3. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 4. Every output channel can provide up to the maximum current, but total load can't exceed the rated output power.
  5. 5. CH3(24V) peak current 20A,≦1ms, repeatable in every 100ms. CH3(24V) output must be above 16V in the period of peak current.
  6. 6. The power supply is considered a component which will be installed into a final equipment. All the EMC tests are been executed by mounting the unit on a 360mm*360mm metal plate with 1mm of thickness. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.” (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )
  7. 7. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).

Technical drawings

QP-320D Mechanical Specification
Mechanical Specification
QP-320D Block Diagram
Block Diagram

Downloads

FAQ

Can I use the QP-320D for a higher-load automation cabinet that needs 5V control power and 24V system power?

Yes, this is the strongest option in this group for mixed-voltage cabinet electronics because it provides 5V, 12V, 24V, and -12V outputs with 316W total power. Its main 5V rail is rated at 20A, which gives more 5V capacity than the 15A class models.

Is the QP-320D suitable for embedded computing platforms with multiple auxiliary voltage rails?

It can be a strong fit for dense embedded platforms that need one AC-input supply to support several regulated rails. The unit accepts 90-264VAC, uses constant-voltage operation, and combines 5V, 12V, 24V, and -12V outputs in a 316W package.

Would this model work for industrial instrumentation or motion-control electronics that use -12V?

Yes, the -12V rail makes it relevant for instrumentation and control electronics that still need bipolar analog support alongside 5V, 12V, and 24V. Compared with the 203.4W class models, this version raises the main 5V output to 20A and total power to 316W.

Can the QP-320D be used where the ambient temperature is higher than standard room conditions?

It is specified for operation from -10C to +70C, which is a wider upper temperature range than the +60C limit shown on the 150W and 200W products in this set. That makes it the better fit of these listed models for warmer controlled environments, assuming the application still needs 5V, 12V, 24V, and -12V outputs.

Is the QP-320D rated for outdoor or washdown environments?

The provided specifications do not list an IP rating, so outdoor or washdown use is not established by this data. What is specified is an operating temperature range of -10C to +70C.

How does the QP-320D compare with other QP family options?

This model is 316W with a 5V 20A main rail, while QP-320F is also 316W with 5V 20A, QP-200D is 203.4W with 5V 15A, QP-200F is 202.5W with 5V 15A, QP-200-3A is 200W with 5V 15A, and QP-150-3C is 152W with 5V 10A. The family also includes multiple 100W models, several 146W and 150.2W variants, a 203.9W QP-200-3D with 5V 10A, and 375W to 378W 5V and 24V versions.

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Mean Well QP-320D Power Supply 320W 5V 12V 24V -12V 20A
Mean Well

Mean Well QP-320D Power Supply 320W 5V 12V 24V -12V 20A

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QP-320D is the CH1: 5V / CH2: 12V / CH3: 24V / CH4: -12V output model of this series: rated current CH1: 20A / CH2: 10A / CH3: 3A / CH4: 2A, rated power 316W, typical efficiency 83%.

Features

  • Universal AC input / Full range
  • Built-in active PFC function, PF>0.95
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • CH1 & CH2 can be adjusted from -5% ~ +10%
  • With power good and fail signal output
  • Built-in remote sense function for CH1 & CH2
  • LED indicator for power on
  • 100% full load burn-in test
  • 20A peak load capability for 24V channel
  • 3 years warranty
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