3 Year Warranty

Approvals: 

Specification

PRODUCT NUMBER

LTEF600-S120 

LTEF600-S240 

LTEF600-S270 

LTEF600-S360 

LTEF600-S480 

OUTPUT 

DC Output 

12V 

24V 

27V 

36V 

48V 

Rated Current (100~127Vac) 

34A 

22A 

18V 

14A 

11A 

Rated Current (128~264Vac) 

42A 

26.5A 

23V 

17.5A 

13.6A 

Ripple and Noise  

Note 2 

0-70°C 

120mV 

150mV 

150mV 

150mV 

200mV 

-30°C 

180mV 

150mV 

150mV 

150mV 

200mV 

Voltage ADJ.  Range 

-5%~+10% of rated output voltage 

Voltage Accuracy  

±2.0% 

±2.0% 

±2.0% 

±2.0% 

±2.0% 

Line Regulation 

±0.5% 

±0.5% 

±0.5% 

±0.5% 

±0.2% 

Load Regulation 

±1.0% 

±1.0% 

±1.0% 

±1.0% 

±1.0% 

Set-up Time 

＜1.5S (230Vac input, Full load), ＜3S (115Vac input, Full load) 

Hold up Time  

＞16mS/ (230Vac input, Full load) 

Temperature Coefficient 

±0.05%/°C 

Overshoot and Undershoot 

<5.0% 

INPUT 

Voltage Range    

90Vac~264Vac,127Vdc~370Vdc 

Frequency Range 

47Hz--63Hz 

Power Factor(Typical) 

PF＞0.98/115VAC    PF＞0.96/230VAC 

Efficiency ( Typical) 

88% 

89% 

89% 

90% 

90% 

AC Current (max.) 

<7A 

Inrush Current (Typical) 

<20A@230Vac       Cold start 

Leakage Current 

Input—output: ≤0.1mA     Input—PG: ≤0.75mA 

PROTECTION 

Over Load 

110%~135% of rated output current, constant current 

Over Temperture 

105°C+5°C(detect on Mosfet temperature);shut down,auto recovery after the temperature goes down to 75°C 

Over Voltage 

110%~150% of rated voltage; constant voltage 

Short Circuit 

Long-term mode, constant current, auto recovery  

ENVIRONMENT 

Operating amb. Temp. & Hum. 

-30°C~70°C;  20%~90%RH  No condensing  (refer to derating curve) 

Storage Temp. & Hum. 

-40°C~85°C;  10%~95%RH  No condensing 

SAFETY &EMC   

(Note 3) 

Safety Standards 

UL60950-1 2nd Ed; IEC 60950-1:2005(2nd Ed) ;EN60950-1:2006 

Withstand Voltage 

Primary-Secondary:3.0KVac; ≤10mA .Primary-PG:1.5KVac; ≤10mA. Secondary-PG:0.5KVac;≤10mA. 

Isolation Resistance 

≥100M ohms  

EMI Conduction&Radiation 

Compliance to EN55022,  CLASS B 

Harmonic Current 

Compliance to EN61000-3-2, class D 

EMS Immunity 

Compliance to EN61000-4-2,3,4,5,6,8,11; heavy industry level 

OTHERS 

MTBF (MIL-HDBK-217F) 

More than 200,000Hrs (25 , Full load)°C         

Dimension  (L*W*H) 

218×116.5×41mm 

Packing 

6PCS/CTN, 8.7KGS, 0.04CBM 

Cooling method 

Fored air cooling(Built-in fan)  

1. All parameters NOT specially mentioned are measured at rated input, rated load and 25 of ambient temperature.°C         

NOTE 

2. Measured at 20MHz of bandwidth by using a 12” twisted pair-wire terminated with a 0.1 uF & 47uF parallel capacitor. 
3. The power supply is considered as a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies” on http://www.powerld.com. 

Block Diagram

Derating Curve

Mechanical Specification