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Name: AD-55
Product catalog: UPS Battery charger power supply

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55W Single Output with Battery Charger (UPS Function) AD-55 series
1. Universal AC input / Full range
2. Protections: Short circuit / Overload / Over voltage
3. Battery low protections
4. Cooling by free air convection
5. 100% full load burn-in test
6. Fixed switching frequency at 45 KHz
7. 2 years warranty

MODEL  AD-55A   AD-55B  
Output number 13.8V 13.4V 27.6V(24V) 26.5V(24V)
DC voltage 3.5A 0.23A 1.8A  0.16A
Rated Current 0~4A -------- 0~2A --------
Current Range 51.38W 53.92W
Rated Power 100mVp-p -------- 100mVp-p --------
Ripple & Noise CH1:12~14.5V CH1:24~29V
Voltage Adj. Range ±1.0% -------- ±1.0% --------
Voltage Tolerance ±0.5% -------- ±0.5% --------
Line Regulation ±0.5% -------- ±0.5% --------
Load Regulation 800ms,50ms/230VAC   1600ms,50ms/115VAC at full load 
Setup, Rise Time 80ms/230VAC    16ms/115VAC at full load
Voltage Range 88~264VAC   47~63Hz; 124~370VDC
AC Current 1.6A/115VAC   1A/230VAC
Efficiency 71% 74%
Inrush Current Cold start 20A/115VAC   40A/230VAC 
Leakage Current <1mA /240VAC
Over Load 105~150% 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 CH1:31.74~37.26V
Protection type: Hiccup mode,recovers automatically after fault condition is removed 
Battery Low 9.5~11V 20~22V
Working Temp. -10~+60℃ (Refer to “Derating Curve”) 
Working Humidity 20~90%RH non-condensing
Storage Temp., Humidity -20~+85℃,10~95%RH
Temp. Coefficient ±0.03%/ ℃(0~50℃ )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℃ /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 159*97*38mm(L*W*H)
Weight 0.5Kg
Packing 24pcs/12.60Kg/0.75CUFT
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.

If you have any enquiry about quotation or cooperation , please feel free to email us at or use the following enquiry form . Our sales representative will contact you within 24 hours. Thank you for your interest in our products.