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Mean Well

Mean Well SDR-480-24 Single Output Industrial Power Supply 480W 24V 20A - DIN Rail

SKU SDR-480-24
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Select model — 6 in this family

SDR-480-24
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Overview

SDR-480-24 is the 24V output model of this series: rated current 20A, rated power 480W, typical efficiency 94%.

Features

  • High efficiency 94% and low power dissipation
  • 150% peak load capability
  • Built-in active PFC function, PF>0.94
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • Cooling by free air convection
  • Built-in constant current limiting circuit
  • Can be installed on DIN rail TS-35/7.5 or 15
  • UL 508(industrial control equipment)approved
  • BS EN/EN61000-6-2(BS EN/EN50082-2) industrial immunity level
  • Built-in DC OK relay contact
  • 100% full load burn-in test
  • 3 years warranty

Specifications

SDR-480-24Specifications from the official datasheet (2025-02-17 edition)

OUTPUT

DC VOLTAGE
24V
RATED CURRENT
20A
CURRENT RANGE
0 ~ 20A
RATED POWER
480W
PEAK CURRENT
30A
PEAK POWERNote.6
720W (3sec.)
RIPPLE & NOISE (max.)Note.2
100mVp-p
VOLTAGE ADJ. RANGE
24 ~ 28V
VOLTAGE TOLERANCENote.3
±1.2%
LINE REGULATION
±0.5%
LOAD REGULATION
±1.0%
SETUP, RISE TIME
1500ms, 150ms/230VAC 3000ms, 150ms/115VAC at full load
HOLD UP TIME (Typ.)
14ms/230VAC at full load

INPUT

VOLTAGE RANGENote.7
90 ~ 264VAC 127 ~ 370VDC
FREQUENCY RANGE
47 ~ 63Hz
POWER FACTOR (Typ.)
0.94/230VAC 0.99/115VAC at full load
EFFICIENCY (Typ.)
94%
AC CURRENT (Typ.)
5A/115VAC 2.5A/230VAC
INRUSH CURRENT (Typ.)
40A/115VAC 80A/230VAC
LEAKAGE CURRENT
<0.8mA / 240VAC

PROTECTION

OVERLOAD
Normally works within 110 ~ 150% rated output power for more than 3 seconds and then shut down o/p voltage with auto-recovery >150% rated power, constant current limiting with auto-recovery within 2 seconds and may cause to shut down if over 2 seconds
OVER VOLTAGE
29 ~ 33V Protection type : Shut down o/p voltage with auto-recovery or re-power on to recovery
OVER TEMPERATURE
Shut down o/p voltage, recovers automatically after temperature goes down

FUNCTION

DC OK REALY CONTACT RATINGS (max.)
60Vdc/0.3A, 30Vdc/1A, 30Vac/0.5A resistive load

ENVIRONMENT

WORKING TEMP.Note.5
-25 ~ +70℃ (Refer to "Derating Curve")
WORKING HUMIDITY
20 ~ 95% RH non-condensing
STORAGE TEMP., HUMIDITY
-40 ~ +85℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.03%/℃ (0 ~ 50℃)
VIBRATION
Component:10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes; Mounting: Compliance to IEC60068-2-6

SAFETY & EMC (Note 4)

SAFETY STANDARDS
UL508, TUV BS EN/EN62368-1, AS/NZS 62368.1, EAC TP TC 004 , BSMI CNS15598-1 approved ; (meet BS EN/EN60204-1)
WITHSTAND VOLTAGE
I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC O/P-DC OK: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), BS EN/EN61204-3 Class B, BS EN/EN61000-3-2,-3, EAC TP TC 020, CNS15936
EMC IMMUNITY
Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN55035, BS EN/EN61000-6-2 (BS EN/EN50082-2), BS EN/EN61204-3, heavy industry level, EAC TP TC 020, SEMI F47 approved

OTHERS

MTBF
964.2K hrs min. Telcordia SR-332 (Bellcore) ; 91.9K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
85.5*125.2*128.5mm (W*H*D)
PACKING
1.6Kg; 8pcs/13.8Kg/0.9CUFT
Test conditions and notes8
  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. The power supply is considered a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meets EMC directives. (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )
  5. 5. Installation clearances : 40mm on top, 20mm on the bottom, 5mm on the left and right side are recommended when loaded permanently with full power. In case the adjacent device is a heat source, 15mm clearance is recommended.
  6. 6. 3 seconds peak power max. and the average output power should not exceed the rate power.
  7. 7. Derating may be needed under low input voltage. Please check the derating curve for more details.
  8. 8. 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

SDR-480-24 Mechanical Specification
Mechanical Specification
SDR-480-24 Block Diagram
Block Diagram
SDR-480-24 Derating Curve
Derating Curve

Downloads

FAQ

Can the SDR-480-24 power a high-load 24V PLC cabinet or large automation panel?

Yes, this model delivers 24V at up to 20A with a total rating of 480W, so it suits larger 24V PLC cabinets and automation panels with higher combined current demand. It is built as a DIN rail power supply for industrial enclosure use.

Is the SDR-480-24 suitable for a 24V control panel with multiple industrial devices on one power supply?

It is appropriate for 24V control panels that need up to 480W or 20A from a single supply. The housing measures 85.5 x 125.2 x 128.5 mm (W x H x D), which is relevant when planning DIN rail cabinet space.

Can I use this 24V DIN rail supply for building management or industrial control loads with heavier current draw?

Yes, if the system requires 24V DC and the total demand remains within 20A and 480W. Its 90-264VAC input range also supports use in panels fed from a broad range of AC mains conditions.

Is the SDR-480-24 intended for cabinet or enclosure installation rather than exposed mounting?

Yes, this model is better suited for protected indoor control cabinets or enclosures than exposed locations. The operating temperature range is -25°C to +70°C (refer to the derating curve), and the listed safety approvals are UL508, TÜV BS EN/EN62368-1, AS/NZS 62368.1, EAC TP TC 004 and BSMI CNS15598-1.

How does the SDR-480-24 compare with other Mean Well SDR DIN rail power supplies?

The SDR-480 series datasheet lists one other model: the SDR-480-48 at 480W, 48V, 10A (adjustable 48 ~ 55V). Both share 90-264VAC input, 94% typical efficiency, 720W (3 sec.) peak power and the same 85.5 x 125.2 x 128.5 mm housing; the SDR-480-24 delivers 24V at 20A (adjustable 24 ~ 28V).

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Other SDR-480 Models

1 other model
ModelPowerVoltageCurrentIP Rating
Mean Well SDR-480-48 Single Output Industrial Power Supply 480W 48V 10A - DIN Rail 480W 48V 10A IP20 View
View all 14 SDR Series models
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Mean Well SDR-480-24 Single Output Industrial Power Supply 480W 24V 20A - DIN Rail
Mean Well

Mean Well SDR-480-24 Single Output Industrial Power Supply 480W 24V 20A - DIN Rail

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SDR-480-24 is the 24V output model of this series: rated current 20A, rated power 480W, typical efficiency 94%.

Features

  • High efficiency 94% and low power dissipation
  • 150% peak load capability
  • Built-in active PFC function, PF>0.94
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • Cooling by free air convection
  • Built-in constant current limiting circuit
  • Can be installed on DIN rail TS-35/7.5 or 15
  • UL 508(industrial control equipment)approved
  • BS EN/EN61000-6-2(BS EN/EN50082-2) industrial immunity level
  • Built-in DC OK relay contact
  • 100% full load burn-in test
  • 3 years warranty

Model

  • 75W 24V
  • 120W 24V
  • 240W 24V
  • 480W 24V
  • 480W 24V PFC
  • 960W 24V
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