72Vdc to 24Vdc 240w 360w 480w Isolated voltage reducer

 Replace diode rectification with synchronous, over88% efficient as high power density  Available for maximum pulse power exceeds 120% of the nominal rating  Wide voltage input , suitable for battery applications ( cell voltage of 1.65V ~ 2.50V)  Smaller, lighter and significantly more quiet than conventional converters  Short circuit / overload output protection (resume after the short circuit disappear)  Applicable to a variety of environmental , protection class IP54

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Description

Main technical data

Model	NQZB200-072-024I	NQZB300-072-024I	NQZB400-072-024I
Input voltage	72V
Input voltage range	DC54V~90V
Output voltage	24V
Output voltage accuracy	5%
Output current	0~10A	0~15A	0~20A
Output power	240W	360W	480W
Key switch line starting current	20~30mA ＜9A@200ms
Conversion efficiency(full load)	≥88%
Static loss after low voltage protection	≤3mA (0.072W)
Protection circuit	Overcurrent protection，short circuit protection，self recovery
Insulation performance [circuit and ground (shell)]	≥500Ω/V @The AT is(23±2)℃ @The RH is80%～90%
Insulation [direct dielectric strength of terminals to ground (shell) or circuits not electrically connected to each other]	≥2000V（DC）（Or rated voltage+1500V）@1min
Reliability	≥50000h @Fault free working time
Durability	≥10000h @105℃
Operating ambient temperature	-20~45℃
Relative humidity of working environment	5%～95%（No condensation）
Waterproof grade	IP54
Mounting hole size	5mm6mm6个
Maximum overall dimension	205mm92mm46mm	205mm92mm46mm	225mm92mm46mm
L length in dimension drawing	180mm	180mm	200mm

Wiring mode

The output terminals of 120W/240W/360W

The output terminals of 480W

Installation size

See the length of L in the last row of the above technical date table for the corresponding size and length of each model

Precautions
Installation & safety instructions

The converter must be mounted on solid metal, aluminum for heat dissipation. The converter will be very hot during use, keep wiring from touching the converter and or do not touch it !
Confirm battery pack main positive and negetive potentials !
For older cars using a negative through key switch you must use a relay for converter activation. Consult technical services for this application. For radio memory you must either leave the key switch in the on position or hardwire the yellow and red wire to 36/48/60/72 volt positive. Doing this you will have a constant drain on the battery pack and long extended period of “setting” will help drain the battery pack. It is advised for long storage to disconnect the converter.
Anytime a battery pack is disconnected manufacturers instructions must be followed. Always make sure if the car has a run/tow switch the switch is placed in the tow position before disconnecting anything. Torque battery cable nuts to 80 to 100 inch pounds. Spray coat connections with anti corrosion spray. Tech Note: loose connection create heat and arcing make sure all wiring connections are clean and tight.
Make sure all wiring is free from moving parts, sharp objects or extreme hot area’s! Tie up any loose wiring
use process equipment will pay attention to timely remove surface dust and other debris impact of heat dissipations .
Please don’t disassemble the DC-DC converter yourself . it may cause electric shock or other injuries .
In order to avoid damaging the power cord , don’t put any object on the line and place the line where it will not be stepped on . If the cord is frayed or damaged , replace it immediately

Warranty: 12 months Limited Warranty from time of delivery

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96Vdc to 24Vdc 240w 360w 480w Isolated voltage reducer

 Replace diode rectification with synchronous, over88% efficient as high power density  Available for maximum pulse power exceeds 120% of the nominal rating  Wide voltage input , suitable for battery applications ( cell voltage of 1.65V ~ 2.50V)  Smaller, lighter and significantly more quiet than conventional converters  Short circuit / overload output protection (resume after the short circuit disappear)  Applicable to a variety of environmental , protection class IP54

96Vdc to 12Vdc 120w 240w 360w 480w Isolated voltage reducer

 Replace diode rectification with synchronous, over88% efficient as high power density  Available for maximum pulse power exceeds 120% of the nominal rating  Wide voltage input , suitable for battery applications ( cell voltage of 1.65V ~ 2.50V)  Smaller, lighter and significantly more quiet than conventional converters  Short circuit / overload output protection (resume after the short circuit disappear)  Applicable to a variety of environmental , protection class IP54

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