21W open frame type switching power supply, constant voltage switching power supply, ITE, CLASS B, LPS
P/N: KRE-OPS22
Model: KRE-3000070D




Input:100~240V 50/60Hz
Output:30VDC 700mA

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




High reliability
Light and convenient plug in 
High efficiency: consumption, meet US Energy start/CEC/AS/MEPS/EUP/ERP




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




Input voltage
AC100V---240V
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%

built-in EMI filter
100% load test
Full range of input voltage
output voltage accurate and stable
Output over-voltage, over-current and short-circuit protection
Output low ripple and noise




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




AC adapter protection：
Overload protection
105% - 150% rated power, automatic recovery
Over-voltage protection
105% - 150% of the rated voltage
Suitable for mini/micro USB, iPhone or Samsung Galaxy Tab
thermal shutdown capability
over current protection
short-circuit protection




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