TDK-Lambda
291-800-526-2324 • www.us.tdk-lambda.com/lp/ Disclaimer: us.tdk-lambda.com/lp/legal.htm
GWS Series
Features
High Effi ciency, up to 93%
1.6” high (For 1U racking)
Wide Range AC Input
250W Convection Cooled
Five year warranty
250 & 500W Single Output Power Supplies
Key Market Segments & Applications
GWS500 Shown
(1) 115 / 230VAC input
(2) Recycle AC, or use remote on/off to reset
(3) Guaranteed start up at -40°C
(4) 500VDC for GWS500
Model GWS250 GWS500
AC Input Voltage (300VAC for 5s) VAC 85 - 264VAC
Input Frequency Hz 47 - 63Hz
DC Input Voltage VDC 120 - 373VDC*
Inrush Current (cold start) A 20A at 115VAC, 40A at 230VAC
Power Factor (1) - Meets EN61000-3-2 (Typical PF 0.98/0.95)
Input Current (115/230VAC) A 3.0 / 1.4 5.5 / 2.7
Temperature Coeffi cient °C <0.02%/°C (0 - 50°C)
Overcurrent Protection - >105% of nominal or >101% of peak. 12V hiccup style, 24V-48V Constant current style
Overvoltage Protection (2) V 12V: 13.8 - 16.2V24V: 30.3 - 35.5V, 36V: 41.4 - 48.6V, 48V: 60 -69.6V
Overtemperature Protection (2) - Yes
Hold Up Time (115 / 230V input) ms 16ms
Leakage Current (230VAC 60Hz) mA <0.75mA
Remote Sense - No Yes
Remote On/Off - Active Low
Standby Input Power Draw W <0.5W
5V Standby (always on) - 5V 0.3A
DC Good - DC Good, open collector signal, High on Fail
LED Indicator - Green LED = On
Output Remote Programming - See installation manual for details
Operating Temperature °C -25 to +70°C. Derate linearly to -25(3) to +70°C. Derate linearly to
50% load from +50 to +70°C 50% load from +50 to +70°C
Storage Temperature °C -30 to +85°C
Operating Humidity - 30 - 90% RH (non condensing)
Storage Humidity - 10 - 95% RH (non condensing)
Cooling - Convection Internal fan
Withstand Voltage - Input to Ground 1.5kVAC, Input to Output 3kVAC, Output to Ground 500VAC(4) for 1 min.
Isolation Resistance - >100M at 25°C & 70%RH, Output to Ground 500VDC
Vibration (non operating) - 10 - 55Hz: 19.6m/s2 constant sweep 1 min X, Y, Z for 1 hour
Shock - < 196.1 m/s2 (20G)
Immunity - IEC61000-4-2 (lv 2, 3), -3 (lv3), -4 (lv 3), -5 (lv 3), -6 (lv 3), -8 (lv 4), -11
Safety Agency Approvals - UL60950-1, CSA C22.2 No 60950-1-07 (cUL), EN60950-1 2nd Edition, IEC60950-1, CE Mark
Conducted & Radiated EMI - EN55022-B, FCC-B
Weight (Typ) g 850 1020
Size (LxWxH in 7.8 x 4.1 x 1.61” 8.6 x 4.1 x 1.61”
Warranty yrs Five Years
Specifi cations
*Safety certifi ed for AC input only
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301-800-526-2324 • www.us.tdk-lambda.com/lp/ Revision A9: Nov 2015
GWS Series
Adjust Max Peak Curr. Load Line Ripple Effi ciency
Voltage Range Current <10s,<35% Reg. Reg. Noise (typ) %
Model (V) (V) (A) DC (A) (mV) (mV) (mV) (230VAC)
GWS250-12 12V 10.8 - 13.2 21 - 96 48 150 92
GWS500-12 12V 10.8 - 13.2 42 - 96 48 150 89
GWS250-24 24V 22 - 28.8 10.5 12.5 192 96 240 92
GWS500-24 24V 22 - 28.8 21 25.0 192 96 150 90
GWS250-36 36V 32 - 40 7 8.4 288 144 360 93
GWS500-36 36V 32 - 40 14 16.7 288 144 200 90
GWS250-48 48V 42 - 57.6 5.3 - 384 192 480 93
GWS500-48 48V 42 - 57.6 10.5 - 384 192 300 90
Model Selector
GWS500 Outline Drawing
For Additional Information, please visit
us.tdk-lambda.com/lp/products/gws-series.htm
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