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NES Series Constant Voltage Switching Power Supply

350W Nes Series Constant Voltage Switching Power Supply (Model: Nes-350-5/12/24/48)

Modulation System: PWM
Input: 90~132VAC / 180~264VAC Selected by Switch
Mtbf: 234.3K Hrs Min. Mil-Hdbk-217f (25oc)
Safety Standard: En60950
Description:
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NES Series Single Phase Constant Voltage Switching Power Supply

Features

1. AC input range selectable by switch
2. High efficiency, long life and high reliability
3. LED indicator for power on
4. Forced air cooling by built-in DC fan
5. 100% full load burn-in test
6. Protection: Over load/Over voltage/Short circuit/Over temperature
7. Built-in cooling fan on-off control
8. Built-in constant current limiting circuit
9. Withstand 300vac surge input for 5 seconds
10. Fixed switching frequency at 90KHz
11. CE,ROHS approval
12. 2 years warranty

Technical Parameters

MODEL		NES-350-5	NES-350-12	NES-350-15	NES-350-24	NES-350-48
OUTPUT	DC VOLTAGE	5V	12V	15V	24V	48V
	RATED CURRENT	60A	29A	23.3A	14.6A	7.3A
	CURRENT RANGE	0 ~ 60A	0 ~ 29A	0 ~ 23.3A	0 ~ 14.6A	0 ~ 7.3A
	RATED POWER	300W	348W	348W	350.4W	350.4W
	RIPPLE & NOISE (max.)	150mVp-p	150mVp-p	150mVp-p	150mVp-p	200mVp-p
	VOLTAGE ADJ. RANGE	4.5 ~ 5.6V	10 ~ 13.5V	13.5~18V	20 ~ 26.4V	41~56V
	VOLTAGE TOLERANCE	±3.0%	±1.5%	±1.0%	±1.0%	±1.0%
	LINE REGULATION	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%
	LOAD REGULATION	±2.0%	±1.0%	±0.5%	±0.5%	±0.5%
	SETUP, RISE TIME	1000ms,50ms/230VAC 1000ms,50ms/115VACat full load
	HOLD TIME (Typ.)	20ms/230VAC 16ms/115VAC at full load
INPUT	VOLTAGE RANGE	90~132VAC / 180~264VAC selected by switch 254~373VDC
	FREQUENCY RANGE	47 ~ 63Hz
	EFFICIENCY (Typ.)	79%	83%	84%	87%	88%
	AC CURRENT (Typ.)	7A/115VAC 4A/230VAC
	INRUSH CURRENT (Typ.)	40A/115VAC 60A/230VAC
	LEAKAGE CURRENT	<3.5mA/240VAC
PROTECTION	OVERLOAD	110~150% rated output power
	OVERLOAD	Protection type : Hiccup mode, recovers automatically after fault condition is reoved
	OVER VOLTAGE	5.75~7.5V	13.8~16.2V	18~21V	27.6~32.4V	57.6~67.2V
	OVER VOLTAGE	Protection type :Shut down o/p voltage, re-power on to recover
	OVER TEMPERATURE	90°C ±5°C (3.3~7.5V) ; 85°C ±5°C(12V~15V) ; 80°C ±5°C (24V) ; 75°C ±5°C (27~48V) (TSW1) Detect on case
	OVER TEMPERATURE	Protection type: Shut down o/p voltage,recovers automatically after temperature goes down
ENVIRONMENT	WORKING TEMP.	-20 ~ +60°C
	WORKING HUMIDITY	20 ~ 90% RH non-condensing
	STORAGE TEMP., HUMIDITY	-40 ~ +85°C, 10 ~ 95% RH
	TEMP. COEFFICIENT	±0.03%/ (0 ~ 50°C)
	VIBRATION	10 ~ 500Hz, 2G 10min./1cycle, period for 60min, each along X,Y,Z axes
SAFETY & EMC	SAFETY STANDARDS	Desgin refer to UL1012,EN60950-1,EN61347-1,EN-61347-2 approved
	WITHSTAND VOLTAGE	I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
	ISOLATION RESISTANCE	I/P-O/P, I/P-FG, O/P-FG:100M Ohms/500VDC
	EMC EMISSION & IMMUNITY	EN55015,EN55022,EN55024,EN61000-2,EN61000-3,EN61547 approved
OTHERS	MTBF	234.3K hrs min. MIL-HDBK-217F (25ºC)
	DIMENSION	215×115×50mm (LWH)
	WEIGHT	1.07Kg; 17pcs/19.0Kg/1.29CUFT

Note:
1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25°C of ambient temperature.
2. Ripple & Noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1 uf & 47 uf parallel capacitor.
3. Tolerance: includes set up tolerance, line regulation and load regulation.
4. Line regulation is measured from low line to high line at rated load.
5. Load regulation is measured from 0% to 100% rated load.