Product Description

Specification for DC-DC Converter 
[Model: D-500/T-72]

 Ref: RDSO Spec.No.ELRS/SPEC/DC-DC CONVERTER/OO21 (Rev-01) Sept-2004

1. Input Voltage Range 	    :  	50V - 85V DC (Nominal 72V DC)

2. Input Ripple	            :  	Upto 30% peak to peak.

3. Output Voltage 	        :   24V DC, settable between 24 to 26V 1%	(Factory set: 25.5V +/- 1V)
4. Load Capacity	        :  	500 Watt continuous at 24V output.

5. Efficiency 	            :  	More than 85% at 72V input with 500W laod.

6. Insulation Resistance	:  	More than 20 meg. ohms measured with a 	500V Megger. 

7. Dielectric Strength	    : 	1.5KV max. between all terminals shorted and the casing for 1 minute.

8. Ambient Temperature	    :  	0 to 70C continuous. 

9. Short Circuit	        :  	Short circuit protected. 

10. Over Voltage/Under Voltage	:  	Beyond 85V and below 50V system will trip. System will re-start 
                                    automatically within operating voltage range.	

11. Reverse Polarity	    :  	Will not operate for reverse polarity input. No damage is done.

12. Surge 	                :  	Can withstand 1.8KV, 1.2/50 micro Sec

13. Termination 	        : 	2 Nos. two way stud type terminals for input and output connection.

14. Dimension (Approx.)	    :  	255mm x 210mm x 170mm (+35 terminal  cover)

15. Weight (Approx.) 	    :  	8 KG.

The two DC-DC Converters are housed in one MS cabinet with a change over switch for selecting any one at a time. Each DC-DC Converter has been designed to drive 500 Watts load continuous at 24V output.