DC/DC Konvertori

DC/DC Converter

This DC-DC converter module converts a nominal 48V (42V-61.5V) into 24V (25A maximum) accurate voltage at the output.

The unit comes with the option to set several similar modules in parallelTelecom Rectifier in order to gain more power and redundant operation (N+1).

Output voltage is set by a single trimmer-potentiometer, using a small screwdriver.

Each DC to DC Power Converter is protected against input low/high voltage, output over-voltage, over temperature and output over-load.

A low-voltage-disconnect (LVD) is included at the input stage to protect the potential battery at the input from being deeply discharged.

Galvanic isolation between input and output. There are four leds in the front panel which indicate the load level.

The DC Transformers are protected against input low/high voltage, output over-voltage, over temperature and output overload or shorting (short circuit). Each unit is Hot-Swap, 3 units in a 1U, 19″ shelf (total 1,800W per shelf).

INPUT	Single Dc-Dc 48-24 Module
Voltage range	42÷ 61.5VDC
Current	17A (max)
Efficiency	>88%p
Protection	47÷63 Hz
Low Voltage	>60 sec
Restart operation	0.99
Output
Voltage	24VDC
Current limit	25A (folds back to 9A at shortcircuit)
Voltage adjustment	±5%
Voltage regulation	±1%
Ripple	50mVrms
Protection	Over load, output OVP, Over-temperature
Display	4 LED bar-graph display the load level
Parallel operation	Active current-sharing
General
Ambient temperature	-10÷50°C
Humidity	0-95 %
Dimensions (mm)	146 (W); 44 (H); 260 (D) 0.8
Weight (Kg)
Withstand voltage	Input – Output: 1500VDC
	Input – chassis: 1500VDC
	Output – chassis: 1500VDC
Cooling	Forced, fan speed control
Safety	IEC950, EN60950
EMC	EN55022, EN6100-4-2
	2,3,4,5,6,11 ,EN61000-3-2
	EN6100-3-2, EN61000-3-3