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Mean Well

Mean Well PM-20-24 Power Supply 20W 24V 920mA

SKU PM-20-24
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Overview

PM-20-24 is the 24V output model of this series: rated current 0.92A, rated power 22.08W, typical efficiency 84%.

Features

  • Universal AC input / Full range
  • Low leakage current <300μA
  • Protections: Short circuit / Overload / Over voltage
  • Ultra-miniature size, light weight
  • Cooling by free air convection
  • Medical safety approved (2 x MOPP between primary to secondary)
  • No load power consumption<0.75W
  • 100% full load burn-in test
  • Fixed switching frequency at 90KHz
  • High reliability
  • Suitable for BF application with appropriate system consideration
  • 3 years warranty

Specifications

PM-20-24Specifications from the official datasheet (2022-09-20 edition)

OUTPUT

DC VOLTAGE
24V
RATED CURRENT
0.92A
CURRENT RANGE
0 ~ 0.92A
RATED POWER
22.08W
RIPPLE & NOISE (max.)Note.2
240mVp-p
VOLTAGE TOLERANCENote.3
±2.0%
LINE REGULATION
±0.5%
LOAD REGULATION
±0.5%
SETUP, RISE TIME
500ms, 20ms/230VAC 500ms, 20ms/115VAC at full load
HOLD UP TIME (Typ.)
50ms/230VAC 15ms/115VAC at full load

INPUT

VOLTAGE RANGE
85 ~ 264VAC 120 ~ 370VDC
FREQUENCY RANGE
47 ~ 440Hz
EFFICIENCY (Typ.)
84%
AC CURRENT (Typ.)
0.6A/115VAC 0.4A/230VAC
INRUSH CURRENT (Typ.)
COLD START 30A/115VAC 65A/230VAC
LEAKAGE CURRENTNote.6
Earth leakage current < 300 μA/264VAC , Touch current < 100μ A/264VAC

PROTECTION

OVERLOAD
Above 105% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE
27.6 ~ 32.4V Protection type : Shut off o/p voltage, clamping by zener diode

ENVIRONMENT

WORKING TEMP.
-20 ~ +60℃ (Refer to "Derating Curve")
WORKING HUMIDITY
20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-40 ~ +85℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.03%/℃ (0 ~ 50℃)
VIBRATION
10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC (Note 4)

SAFETY STANDARDS
ANSI/AAMI ES60601-1, TUV EN60601-1, IEC60601-1, EAC TP TC 004 approved
ISOLATION LEVEL
Primary-Secondary: 2xMOPP, Primary-Earth:1xMOPP, Secondary-Earth:1xMOPP
WITHSTAND VOLTAGE
I/P-O/P:4KVAC I/P-FG:2KVAC O/P-FG:1.5KVAC
ISOLATION RESISTANCE
I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION
Compliance to EN55011(CISPR11),EN55032 (CISPR32) Class B, EN61000-3-2,-3, EAC TP TC 020
EMC IMMUNITY
Compliance to EN61000-4-2,3,4,5,6,8,11, EN55035, EN60601-1-2, EN61204-3, medical level, EAC TP TC 020

OTHERS

MTBF
487.8Khrs min. MIL-HDBK-217F (25℃)
DIMENSION
94*56*22.7mm (L*W*H)
PACKING
0.18Kg; 90pcs/17.2Kg/0.94CUFT
Test conditions and notes6
  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 0.1uf & 47uf parallel capacitor.
  3. 3. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 4. 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 http://www.meanwell.com)
  5. 5. Touch current was measured from primary input to DC output.
  6. 6. 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

PM-20-24 Block Diagram
Block Diagram
PM-20-24 Derating Curve
Derating Curve

Downloads

FAQ

Can I use the PM-20-24 for a compact 24V automation load?

Yes, it provides a constant 24V output with up to 0.92A available. That suits small 24V automation loads when the total demand stays within 22.08W and 0.92A.

Is the PM-20-24 suitable for 24V control devices inside industrial equipment?

It can support 24V control devices that need regulated DC power and do not exceed 0.92A output current. The maximum output power is 22.08W.

Can this model power 24V embedded interfaces or monitoring modules?

It is designed for constant-voltage 24V output, so it can be used with embedded interfaces or monitoring modules built for 24V DC input. Load sizing should stay within the unit's 22.08W and 0.92A ratings.

How much 24V load can the PM-20-24 handle?

The unit is rated for 24V output at 0.92A, with 22.08W total power. For compatibility, the connected 24V equipment should stay at or below those current and power limits.

Is the PM-20-24 suitable for outdoor or temperature-variable areas?

Its published operating temperature range is -20°C to +60°C. No IP rating is listed, so the specs do not confirm enclosure protection for exposed outdoor, damp, or washdown environments.

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Mean Well

Mean Well PM-20-24 Power Supply 20W 24V 920mA

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PM-20-24 is the 24V output model of this series: rated current 0.92A, rated power 22.08W, typical efficiency 84%.

Features

  • Universal AC input / Full range
  • Low leakage current <300μA
  • Protections: Short circuit / Overload / Over voltage
  • Ultra-miniature size, light weight
  • Cooling by free air convection
  • Medical safety approved (2 x MOPP between primary to secondary)
  • No load power consumption<0.75W
  • 100% full load burn-in test
  • Fixed switching frequency at 90KHz
  • High reliability
  • Suitable for BF application with appropriate system consideration
  • 3 years warranty
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