MODEL

WDR-240-48

OUTPUT

DC VOLTAGE 

48V

RATED CURRENT

5A

CURRENT RANGE

0 ~ 5A

RATED POWER 

240W

RIPPLE&NOISE (max.)   Note.2

150mVp-p

VOLTAGE ADJ. RANGE

48 ~ 55V

VOLTAGE TOLERANCE Note.3

±1.0%

LINE REGULATION     

±0.5%

LOAD REGULATION     

±1.0%

SETUP, RISE, HOLD UP TIME 

800ms,150ms/,18ms/ 400VAC  1500ms,150ms,18ms/230VAC at full load

INPUT

VOLTAGE RANGE 

180 ~ 550VAC          254 ~ 780VDC

FREQUENCY RANGE

47 ~ 63Hz

EFFICIENCY (Typ.)

91% 

AC CURRENT (Typ.)

1A/400VAC          2A/230VAC

INRUSH CURRENT (Typ.)

COLD START 50A

LEAKAGE CURRENT 

<3.5mA / 240VAC  

PROTECTION

OVER LOAD

105 ~ 130% rated output power

Protection type : Constant current limiting, recovers automatically after 

fault condition is removed

OVER VOLTAGE

56 ~ 65V

Protection type : Shut down o/p voltage, re-power on to recover

OVER TEMPERATURE

90°C-5°C (TSW1) detect on heatsink of ; (12V),110 5 (24V) power transistor 

100°C- 5°C (48V) (TSW1) detect on heatsink of power diode

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.

-30~+70°C (Refer to derating curve)

WORKING HUMIDITY

20~95% RH non-condensing

STORAGE TEMP., HUMIDITY

-40~+85°C, 10~95%RH

TEMP. COEFFICIENT

±0.03%/°C (0~50°C)

VIBRATION

10 ~ 500Hz, 2G 10min./1cycle, period for 72min. each along X, Y, Z axes

SAFETY &

EMC

(Note 4)

SAFETY STANDARDS

UL508 approved, IEC60950-1 CB approved by SIQ, design refer to GL

WITHSTAND VOLTAGE

I/P-O/P:3KVAC  I/P-FG:2KVAC  O/P-FG:0.5KVAC O/P-DC OK:0.5KVAC

EMC EMISSION

Compliance to EN55022 (CISPR22), EN61204-3 Class B, EN61000-3-2,-3

EMC IMMUNITY

Compliance to EN61000-4-2,3,4,5,6,8,11, EN55024, EN61000-6-2 (EN50082-2),

EN61204-3, heavy industry level, criteria A approved

ISOLATION  RESISTANCE

I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25 / 70% RH

OTHERS

MTBF

141.1K hrs min. MIL-HDBK-217F (25 )

DIMENSION

63*125.2*113.5mm (W*H*D)

PACKING

1.06Kg; 12pcs/13.7Kg/1.06CUFT

NOTE

1 All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25 of 

   ambient temperature.

. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with

 a  0.1uf & 47uf parallel capacitor.

3. Tolerance : includes set up tolerance, line regulation and load regulation.

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.

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. Derating may be needed under low input voltage. Please check the derating curve for more details.