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Mean Well

Mean Well SDR-240-48 Single Output Industrial Power Supply 240W 48V 5A - DIN Rail

SKU SDR-240-48
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Select model — 6 in this family

SDR-240-48
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Overview

SDR-240-48 is the 48V output model of this series: rated current 5A, rated power 240W, typical efficiency 94%.

Features

  • High efficiency 94% and low power dissipation
  • 150% peak load capability
  • Built-in active PFC function, PF>0.93
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • Cooling by free air convection
  • 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-240-48Specifications from the official datasheet (2025-02-17 edition)

OUTPUT

DC VOLTAGE
48V
RATED CURRENT
5A
CURRENT RANGE
0 ~ 5A
RATED POWER
240W
PEAK CURRENT
7.5A
PEAK POWERNote.6
360W (3sec.)
RIPPLE & NOISE (max.)Note.2
50mVp-p
VOLTAGE ADJ. RANGE
48 ~ 55V
VOLTAGE TOLERANCENote.3
±1.0%
LINE REGULATION
±0.5%
LOAD REGULATION
±1.0%
SETUP, RISE TIME
650ms, 60ms/230VAC 1300ms, 60ms/115VAC at full load
HOLD UP TIME (Typ.)
20ms/230VAC 20ms/115VAC at full load

INPUT

VOLTAGE RANGE
88 ~ 264VAC 124 ~ 370VDC
FREQUENCY RANGE
47 ~ 63Hz
POWER FACTOR (Typ.)
0.94/230VAC 0.99/115VAC at full load
EFFICIENCY (Typ.)Note.8
94%
AC CURRENT (Typ.)
2.6A/115VAC 1.3A/230VAC
INRUSH CURRENT (Typ.)
33A/115VAC 55A/230VAC
LEAKAGE CURRENT
<1mA / 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
56 ~ 65V Protection type : Shut down o/p voltage with auto-recovery
OVER TEMPERATURE
95℃±5℃ (TSW : detect on heatsink of power switch) Protection type : 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

SAFETY STANDARDS
UL508, TUV BS EN/EN62368-1, AS/NZS 62368.1, BSMI CNS15598-1, EAC TP TC 004 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
1160.3K hrs min. Telcordia SR-332 (Bellcore) ; 169.3K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
63*125.2*113.5mm (W*H*D)
PACKING
1.03Kg; 12pcs/13.4Kg/1.22CUFT
Test conditions and notes9
  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 max., please refer to peak loading curves.
  7. 7. Derating may be needed under low input voltage. Please check the derating curve for more details.
  8. 8. After 30 minutes of burn-in.
  9. 9. 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-240-48 Mechanical Specification
Mechanical Specification
SDR-240-48 Block Diagram
Block Diagram
SDR-240-48 Derating Curve
Derating Curve

Downloads

FAQ

Can I use the SDR-240-48 for a 48V industrial control cabinet with higher load demand?

Yes, this model provides 48V output up to 5A, with 240W total capacity, so it fits 48V control cabinet loads that need more power than a 120W supply. It is designed as a DIN rail power supply for industrial panels.

Is the SDR-240-48 suitable for 48V building management or automation systems in an enclosure?

It is appropriate for enclosed 48V building management or automation systems when the total connected load does not exceed 240W or 5A. The 88-264VAC input range supports use across a broad span of standard AC supply conditions.

Can this unit be used where a 48V DIN rail supply is needed but panel space is still a concern?

Yes, it combines 240W capacity with a DIN rail form factor measuring 125.2 x 113.5 x 63.0 mm. That makes it useful for 48V cabinet applications needing 240W from a unit only 63 mm wide on TS-35 rail.

Should the SDR-240-48 be mounted in a protected control cabinet?

Yes, this power supply is best used inside an enclosure or control cabinet rather than in an exposed environment. Its rated operating temperature is -25°C to +70°C (refer to the derating curve), and it is approved to UL508, TÜV BS EN/EN62368-1, AS/NZS 62368.1, BSMI CNS15598-1 and EAC TP TC 004.

What is the difference between the SDR-240-48 and other SDR models in the same family?

On the SDR-240 series spec sheet there are two models: the SDR-240-48 delivers 48V at 5A (adjustable 48-55V), while the SDR-240-24 delivers 24V at 10A (adjustable 24-28V). Both are rated 240W with 150% peak power (360W for 3 seconds), 94% typical efficiency, active PFC, a DC OK relay contact and free air convection cooling.

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Other SDR-240 Models

1 other model
ModelPowerVoltageCurrentIP Rating
Mean Well SDR-240-24 Single Output Industrial Power Supply 240W 24V 10A - DIN Rail 240W 24V 10A IP20 View
View all 14 SDR Series models
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Mean Well SDR-240-48 Single Output Industrial Power Supply 240W 48V 5A - DIN Rail
Mean Well

Mean Well SDR-240-48 Single Output Industrial Power Supply 240W 48V 5A - DIN Rail

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SDR-240-48 is the 48V output model of this series: rated current 5A, rated power 240W, typical efficiency 94%.

Features

  • High efficiency 94% and low power dissipation
  • 150% peak load capability
  • Built-in active PFC function, PF>0.93
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • Cooling by free air convection
  • 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 48V
  • 120W 48V
  • 240W 48V
  • 480W 48V
  • 480W 48V PFC
  • 960W 48V
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