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Mean Well 48V 155W DC UPS Switching Power Supply

Code: ZAS-BUF-48V-155W
Stock: out of stockout of stock
Packaging: 16 pcs/carton
Documentation: download datasheet for ZAS-BUF-48V-155WZAS-BUF-48V-155W - Datasheet
Your price: 47.65 EUR 
Power supply 48V 155W
Switching power supply 48V 155W ensures uninterrupted powering of devices demanding the voltage of 48V.


  • Universal AC input / Full range
  • Protections: Short circuit / Overload / Over voltage
  • Battery low and battery polarity protection
  • Cooling by free air convection
  • 100% full load burn-in test
  • Fixed switching frequency at 45KHz

Technical specification
Output number CH1 CH2
DC voltage 54V 53,5V
Rated Current 2.7A 0.2A
Current Range 0~2.7A 0~5A
Rated Power 156.5W
Ripple & Noise 240mVp-p --------
Voltage Adj. Range CH1:48~585V
Voltage Tolerance ±1.0% --------
Line Regulation ±0.5% --------
Load Regulation ±0.5% --------
Setup, Rise Time 1000ms, 90ms/230VAC 2000ms, 90ms/115VAC at full load
Hold Up Time 24ms/230VAC 20ms/115VAC at full load
Voltage Range 88~264VAC 47~63Hz; 124~370VDC
AC Current 2.5A/115VAC 1.5A/230VAC
Efficiency 84%
Inrush Current Cold start 20A/115VAC 40A/230VAC
Leakage Current <1mA /240VAC
Over Load CH1:105 135% CH2:0.51 0.9A rated output power
Protection type: AC Charging Mode: Hiccup mode, recovers automatically after fault condition is removed UPS Mode: Protected by internal fuse
Over Voltage CH1:15.87~18.63V
Protection type: Hiccup mode,recovers automatically after fault condition is removed
Battery Low CH1:62.1 72.9V
Working Temp. -10~+60°C (Refer to "Derating Curve")
Working Humidity 20~90%RH non-condensing
Storage Temp., Humidity -20~+85°C,10~95%RH
Temp. Coefficient ±0.03%/ °C(0~50°C )on CH1 output
Vibration 10~500Hz,2G10min./1cycle,60min.each along X, Y,Z axes
Safety Standards UL60950-1, TUV EN60950-1 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 /25°C /70%RH
EMC Emission Compliance to EN55022(CISPR22) Class B, EN61000-3-2,-3
EMC Immunity Compliance to EN61000-4-2,3,4,5,6,8,11,EN55024,light industry level, criteria A
Dimension 199*110*50mm (L*W*H)
Weight 0.72Kg
Packaging 20pcs/15.5KG
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This product was added to our catalog on Thursday 10 July, 2014.
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