Basic Info.
Model NO.
NQZB300-048-012C
Surface Treatment
Oxygenation
Product Description
Summary & Applications
This product is designed to provide a reduced supply to power auxiliary electrical systems, is configured specifically for electric vehicles. The NQZB Series DC/DC Converters achieve unmatched power levels of high efficiency and safety.
The devices provide provide a regulated output of 12.5 or 24.5 volts for vehicles lamps and solar applications etc, also provides 13.5 or 27.0 volts for charging auxiliary batteries.
Features
Replace diode rectification with synchronous, over 93% 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
Specification
Non Isolated 36V input range converters major technical indicators
| Model | Input Voltage | Input Voltage Range | Output Voltage | Output Current | Net Weight | Size |
| NQZB300-048-012C | 12V | 38.4V~57.6V | 12.5 | 0~30A | 0.7KG | 160*92*45mm |
Mode of connection Isolated power ports defining and wiring as shown below
| Port number | Color | Port Definition |
| 1 | red | input positive |
| 2 | yellow | Key Switch( if no key switch , please connect input positive) |
| 3 | black | Input & output negative |
| 4 | green | output Positive |
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
Address:
E906, Jianye Building, No. 96 Xiangxing Rd., Xiang′an District, Xiamen, Fujian, China
Business Type:
Manufacturer/Factory
Business Range:
Auto, Motorcycle Parts & Accessories, Electrical & Electronics
Management System Certification:
ISO 9001, ISO 9000
Company Introduction:
Xiamen Digital Control Instruments Co, Ltd is located in E906, Jianye Building, NO. 96 Xiangxing Rd., Xiang′an District, Xiamen, China. We are a professional engaged in digital control semiconductor converter technology product development, production, sale and service of technology-oriented enterprises.
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