NS-300

Switching Power Supply
Single Output
NS-300 Series, 300Watt
FEATURES:
Input voltage range 100-240VAC
High reliability
Built-in EMI filter
Short circuit, over current, over voltage protections
Cooling by fan
100% burn-in test
With LED power indicator
4 year warranty
Output voltage
(Vdc)
Output current
(A)
Efficiency
Typ.
NS300-3
3.3
55
80%
NS300-5
NS300-9
5
55
83%
9
33.3
86%
12
26
85%
NS300-15
15
21
87%
NS300-24
24
13
88%
NS300-48
48
6.7
84%
Model
NS300-12
Input voltage
(Vac)
100-264
ELECTRICAL
Input
Parameters
Symbols
Test Conditions / Comment
Input voltage
Vin
--
Input frequency
Fline
PF
Power factor
Inrush current
Input current
www.pairuigroup.com
Min.
Typ.
Max.
Units
90
--
264
Vac
125
--
370
Vdc
--
47
--
63
Hz
Full voltage, full load
0.95
--
0.98
PF
Cold start, Vin =115Vac, full load
--
20
--
A
Cold start, Vin =230Vac, full load
--
40
--
A
Full load, Vin =115Vac
--
3.6
--
A
Full load, Vin =230Vac
--
1.8
--
A
Iinrush
Iin
Page: 1 / 3
Date: 07/30/2015
*Subject to change without notice
Switching Power Supply
Single Output
NS-300 Series, 300Watt
ELECTRICAL
Output
Parameters
Symbols
Test Conditions / Comment
Min.
Typ.
Max.
Units
Line regulation
Vout-line
Vin from 100 Vac To 240 Vac
--
1
--
%
Load regulation
Vout-load
Iout from min. To max.
--
1
--
%
Hold-on time
Ton_hold
Full load, Vin =115Vac
--
17
--
ms
Turn-on rise time
Ton_rise
Cold start, power on
--
--
500
ms
Ripple & noise
Vripple
--
--
120
250
mVp-p
Protection
Over current
Type: works at over 105%; it will recover automatically after fault condition is removed
Short circuit
Hiccup mode, it will recover automatically after fault condition is removed
Over voltage
Type: 110-150%; Locked mode, it will recover automatically after turn off the power
Environment
Storage
Ambient operating
temperature
Operating relative
humidity
MTBF
Tstorage
Ta
Humidity: 5% RH to 95% RH
Startup at rated voltage
(Required Derating)
Ha
TMTBF
Non condensing
Full load, 230Vac input,
℃
25
ambient temperature
Dimension(LxWxH)
-20
--
+75
℃
-10
--
+65
℃
10
--
95
%
--
--
200
kHrs
192.5x102x52mm
Safety / EMC
Withstand voltage
I/P-O/P: 3KVac
I/P-FG:2KVac
O/P-FG:0.5KVac
Safety standards
UL, C-UL, CE, CB
EMC
FCC Part 15, VCCI-A, CLSPR22-A, EN55022-A
Notes: 1. Rated Load and Rated Input Voltage,Ta=25℃;
2. Ripple &Noise are measured at 20MHZ of bandwidth by using a 12” twisted pair-wire terminated with a 0.1uf
& 47uF parallel capacitor.
www.pairuigroup.com
Page: 2 / 3
Date: 07/30/2015
*Subject to change without notice
Switching Power Supply
Single Output
NS-300 Series, 300Watt
MECHANICAL
www.pairuigroup.com
Page: 3 / 3
Date: 07/30/2015
*Subject to change without notice