MEAN WELL SP-500-24 Switching Power Supply Output 24Volts ,20Amps (Discontinued: replacement model RSP-500-24)

Sale price$480.72


Features :

-Universal AC input / Full range

-Built-in active PFC function, PF>0.95

-Protections: Short circuit/Over load/Over voltage/Over temperature

-Forced air cooling by built-in DC fan

-Built-in cooling Fan ON-OFF control

-Built-in remote ON-OFF control

-Built-in remote sense function

-Fixed switching frequency at 110KHz

-3 years warranty



-DC voltage : 24V 

-Rated current : 20A

-Current range:  0 ~ 20A

-Rated power : 480W

-Ripple and noise (max.) Note.2 :  240mVp-p

-Voltage Adj. Range :  20 ~ 26.4V

-Voltage Tolerance Note.3:  ± 1.0%

-Line regulation : ± 0.5%

-Load regulation:  ±0.5%

-Setup, Rise, hold Time : 1500ms, 50ms, 20ms at full load


-Voltage range (Note 5.) : 88 ~ 264VAC 124 ~ 370VDC

-Frequency range : 47 ~ 63Hz

-POWER FACTOR (Typ.) : PF>0.95/230VAC PF>0.95/115VAC at full load

-Efficiency(Typ.) : 85.5%

-Ac current (Typ.) : 7A/115VAC 3.5A/230VAC

- Inrush Current (MAX): 18A/115VAC 36A/230VAC

-Leakage Current : <3.5A/240VAC


Overload: 105 ~ 135% rated output power

Protection type : Fold back current limiting, recovers automatically after fault condition is remove

Over voltage : 27.6 ~ 32.4V

Protection type : Hiccup mode, recovers automatically after fault condition is removed

FAN CONTROL, O.T.P : RTH1 or RTH2  ≥ 50°C  FAN ON, ≤ 45°C FAN OFF, ≥70°C output shutdown


Remote control : RC+/RC-: Short = power on ; Open = power off


Working Temp. : -10~ +50 °C  (Refer to "output load Derating Curve")

working humidity:  20 ~ 90% RH non-condensing

Storage Temp., Humidity:  -20 ~ +85 , 10 ~ 95% RH

Temp. Coefficient  : ±0.03%/°C (0~50 °C )

vibration :  10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes

Safety and EMC (note 4 )

Safety Standards :  UL1950, TUV EN60950 Approved

Withstand voltage :  I/P-O/P:3KVAC I/P-FG:1.5KVAC O/P-FG:0.5KVAC

Isolation resistance : I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC 

EMI Conduction and Radiation : Compliance to EN55022 (CISPR22) Class B

Harmonic Current : Compliance to EN61000-3-2,-3

EMS immunity : Compliance to EN61000-4-2,3,4,5,6,8,11;ENV50204 Light industry level, criteria A


MTBF : 133.4K hrs min. MIL-HDBK-217F (25°C )

Dimension :170*120*93mm (L*W*H)

Packing : 1.9Kg; 8pcs/15.2Kg/1.06CUFT


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

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. 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.

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