140W open frame type switching power supply, 140W dual output switching power supplies, ITE, CLASS B, LPS, 
P/N: KRE-OPS19
Input: 110-220VAC 50/60HZ
Output: 55VD 2.5A
or
Output: 3.3V 0.1A




Input:110~220V 50/60Hz
output valtage: 55V & 3.3V
Output current: 2600mA & 100mA

2 years warranty
10 years of industry experience
3 to 360 watts for your customized requirment
Average working no trouble ＞50,000 hours
Product Electric Parameters




Input voltage
AC90V---264V
Input frequency
50-60Hz
Input surge
20A/120VAC 
40A/230VAC




Output voltage can be adjusted
±10%
Start-up time
Leq 1S(input230V,Io=100%)
keep time
More than or equal to 20mS (input230V,Io=100%)
Voltage regulation
(Full load) leq 0.5%
Full range of input voltage
built-in EMI filter
100% load test
output voltage accurate and stable
Output low ripple and noise




EMC standards
According with GB9254, EN55022 class A EN61347-2-13:2008 standards
According with GB4943, UL60950-1,EN60950-1 standards. 




Input---output
1500VAC/1min
Input---ground
500VAC/1min
Input---ground
1500VAC/1min 




Overload protection
105% - 150% rated power, automatic recovery
Over-voltage protection
105% - 150% of the rated voltage
over-current
short-circuit protection 




working temperature
- 20 ° ~ 60 ° c / 20% ~ 90% RH (no frost)
Storage temperature
- 40 ° ~ 85 ° c / 10% ~ 95% RH (no frost)
height above sea level
Leq 2000M
cooling method: 
Natural cooling air convection