OEM / ODM Manufacturing
DC 48V to DC 110V 10A 20A Rack Mount Dc Step up Converter
Industrial-grade design engineered for reliable, long-term performance — supplied through qualified manufacturing with OEM / ODM customization, export-ready packaging and worldwide delivery.
Talk to our engineering team for OEM / ODM projects and volume pricing.
DC Input: 48 VDC
DC Output: 220 VDC
Output current: 10A
Allowable Range of Input DC Voltage: 43V-56.7V
Signal Port: RS485
Dimensions: 2U, 19 Inch
The DC-DC power supply is a power supply product developed by communication and other places that need DC power supply. It can not only be used as an independent power supply, but also be used in parallel. Advanced technology, strict management and years of production experience ensure the reliability of the products. Full load efficiency ≥ 90%. No noise, good electromagnetic compatibility, can be installed in the machine room.
Technical features of DC-DC power supply:
- Output overvoltage protection
- Output over-current protection
- Output short circuit protection
- High temperature protection
- Automatic current sharing technology can realize parallel output
- It supports RS485 communication function (optional). Real time monitoring software is used to understand the working condition of power supply
- 4-way dry node: output state, abnormal output voltage, internal temperature and low battery voltage (optional)
Matters needing attention:
This manual allows you to easily operate and maintain the system. In order to make the system function normally, please pay attention to the following items:
- Follow the instruction steps and operate according to the law.
- The machine should be handled with care.
- Please follow the instructions for power supply.
- In order to avoid personal injury and machine damage caused by electric shock, it is necessary to have a sound grounding system.
- Avoid overload use to avoid machine failure.
- Keep the instruction manual for future reference.
Statement:
Due to the continuous updating and improvement of products and technologies, the contents of this information may not be completely consistent with the actual products. Please feel free to understand. If you need to know about the product update, please contact the manufacturer.
Chapter 2 Product specifications
2.1 Series model description
D24 / DC24 – 40A
DC24 ………Rated output voltage(V)
DC24 ………Rated DC input voltage(V)
40A…………Rated output current(A)
2.2 Technical index
Table A:
| Item | Content | Data |
| Rated Output | Output voltage | Table B |
| Output current | Table B | |
| DC input | LVP | Table C |
| OVP | Table C | |
|
DC output |
Adjustment range of floating charge voltage | Table D |
| Default floating charge output voltage | Table D | |
| Adjustment range of equalizing charge voltage | Table D | |
| Default equalizing charge output voltage | Table D | |
| OVP | Table D | |
| OCP | Rated±5% | |
| Output short circuit protection | Yes | |
| Source change rate | ≤±0.5% | |
| Load change rate | ≤±0.5% | |
| Temperature coefficient | 150PPm/℃ | |
| Peak ripple voltage | Vpp≤100mV | |
| Switching frequency ripple voltage | Vpp≤60mV | |
| Noise | ≤1mV | |
| Efficiency | ≥85% | |
| Environment condition | Temperature | 0~45℃ |
| Humidity | ≤95%PH, Non Condensing | |
| Altitude | ≤2000m | |
| Load type | Resistive, capacitive and inductive | |
| Safety | Hi-pot Test | DC2500V |
| Leakage Current | <10mA | |
| Structure | Case size | See product structure |
Note:The default state is set to “floating charge”。
Table B:
| Output voltage | |||||||||||||||||||||||||||
| Output current | |||||||||||||||||||||||||||
| DC220V | DC220V | DC110V | DC48V | DC24V | |||||||||||||||||||||||
| 5A | 10A | 5A | 10A | 20A | 5A | 10A | 20A | 30A | 40A | 5A | 10A | 20A | 30A | 40A | |||||||||||||
| DC110V | DC220V | DC110V | DC48V | DC24V | |||||||||||||||||||||||
| 5A | 10A | 5A | 10A | 20A | 5A | 10A | 20A | 30A | 40A | 5A | 10A | 20A | 30A | 40A | |||||||||||||
| DC48V | DC220V | DC110V | DC48V | DC24V | |||||||||||||||||||||||
| 5A | 10A | 5A | 10A | 20A | 5A | 10A | 20A | 30A | 40A | 5A | 10A | 20A | 30A | 40A | |||||||||||||
| DC24V | DC220V | DC110V | DC48V | DC24V | |||||||||||||||||||||||
| 5A | / | 5A | 10A | / | 5A | 10A | 20A | 30A | / | 5A | 10A | 20A | 30A | 40A | |||||||||||||
Table C:
| Input undervoltage protection point | Input overvoltage protection point | |
| DC220V | 180V | 270V |
| DC110V | 90V | 140V |
| DC48V | 40V | 60V |
| DC24V | 20V | 32V |
Table D:
| DC220V | DC110V | DC48V | DC24V | |
| Adjustment range of floating charge voltage | 180V-230V | 99V-132V | 43V-56.7V | 22V-27.6V |
| Default floating charge output voltage | 220V | 121V | 52.8V | 26.4V |
| djustment range of equalizing charge voltage | 192V-245V | 110V-132V | 48V-57.6V | 24V-29.8V |
| Default equalizing charge output voltage | 227V | 127V | 56.4V | 28.2V |
| Output voltage protection point | 245V±1V | 145V±1V | 58V±1V | 30V±1V |
Chapter 3 product structure
Rear panel diagram
Port definition:
| Port name | Function description | Note | |
| DC input | DC input+ | ||
| DC input- | |||
| DC output | DC output+ | ||
| DC output- | |||
| Dial switch
(communication address code) |
Invalid number 1 (NC)
The B0-B3 (2-5) address ranges from 0 to 15, with a minimum of 0 and a maximum of 15 You can set 15 addresses. |
Binary coding
B0 is the lowest bit B3 is the highest bit Example:B3 B2 B1 B0=0011(Binary)=3(decimal) |
|
|
9-pin terminal |
RS485 | A | |
| B | |||
| Fault dry contact | COM | Common terminal of all dry contacts | |
| BATTERY FAIL | With charging function, battery low voltage fault port | ||
| TEMP FAIL | The temperature inside the machine is too high | ||
| OUT VOLTAGE FAIL | Output voltage too high | ||
| OUT FAIL | No output or low output voltage | ||
| Current sharing | SH+ | When two machines are running in parallel, parallel line interface | |
| SH- | |||
Chapter 4 Operating instruction
4.1 Working principle diagram
4.2 Front panel indicator light description
⑴“RUN” : When the machine has voltage output, the LED is bright (green).
⑵“ALM” : When there are various failures such as LVP and OVP, the LED is bright (red).
⑶“EC ADJ” : Adjusting this potentiometer can change the equalizing charge voltage.
(The dialing switch is on the right side.“EC”)
⑷“FC ADJ” : Adjusting this potentiometer can change the floating charge voltage.
(The dialing switch is on the left side.“FC”)
⑸“FC” :When the dialing switch is on this side, the output voltage is the floating charge voltage.
“EC” :When the dialing switch is on this side, the output voltage is the equalizing charge voltage.
⑹“DISPLAY” : The LCD display output voltage and current value.
⑺“BLA” : Turn on or turn off the LCD backlight.
⑻“POWER” : Turn on or turn off the power supply.
Chapter 5 installation and operation
5.1 Receive
As the machine may be damaged during transportation, please check whether the package of the goods is damaged when receiving the goods from the cargo company. If there is any damage, please indicate it on the receipt.
5.2 Storage
If the machine needs to be stored, please put it in a cool, dry and ventilated place, and keep away from high corrosive, high dust, high temperature and high humidity environment. If the power supply is not used for a long time, it should be powered on once half a year.
5.3 Preparation before installation
5.3.1 Check the name plate of the machine
Confirm that the specification, output voltage, input voltage, output current, etc. are in accordance with the contents specified in the order. Check whether the machine is damaged during transportation.
5.3.1 Take out the ear accessories of the front panel from the carton, and then fix the ears on both sides of the front panel with a screw driver. The four mounting holes of the hanging ear correspond to the installation holes of the cabinet. Screw in four M4 cross groove round head combination screws (with spring washer and flat pad). After the screws are tightened with tools, the installation is completed.
5.3.2 Confirm installation conditions
1) Dust free, choose ventilation, clean installation environment;
2) Proper ambient temperature
3) The relative humidity meets the requirements
4) Corrosive gases such as anhydrous steam
5) There is no inflammable and explosive materials nearby
6) Power supply in accordance with safety regulations
5.4 Connecting wires
1) Make sure all switches are off.
2) Connect the DC input cable of the host correctly and pay attention to the positive and negative polarity.
3) Connect the output cable of the host correctly.
4) Connect the good grounding wire of the host correctly.
5.5 Basic connection
1)Single use:
2)Multiple parallel connection:
5.3Startup steps
- Connect the DC output line to the load.
- Connect the DC input line to the DC input terminal.
- If you want to communicate, connect the RS485 interface (optional)
- Turn on the power switch and start working.
5.4 Parts
- A manual
- One certificate
- One inspection report
Chapter 6 Maintenance
| Fault phenomenon | Processing method |
| Wrong output voltage | Adjust the floating charge / equalizing charge voltage potentiometer to make the output voltage meet the requirements |
| Fault indicator warning light on | Check the output and battery condition for over discharge, damage, short circuit, output over-voltage, output over-current, etc |
| The output has indication, but the load has no output | Check the output line for open circuit |
| Unstable output | 1、 Check whether the output is overloaded
2、 Check whether the input voltage is lower than the requirement. If not, send to the manufacturer for repair |
| No output | 1、 Check whether the output line is open, if open circuit, connect it again
2、 Check whether the input fuse is broken. If it is broken, replace the fuse 3、 Check whether the input power line is open circuit, if open circuit, replace it with a new one |
| If the above treatment can not solve the problem, send it to the manufacturer for maintenance | |
Chapter 7 after sale
Quality assurance card
Before leaving the factory, the switching power supply has been fully tested and aged to ensure high quality and high reliability within the service life.
The product is guaranteed for one year from the date of sale. Responsible for maintenance service for life.
(1) During the one-year warranty period of the purchased machine, in case of any damage and failure of the machine parts, the company’s technical personnel shall check and confirm that the machine is in normal use, free repair and replacement of parts will be provided, and the damaged parts belong to the company.
(2) The warranty period of the machine listed in this guarantee card will automatically become invalid under the following circumstances.
- Change the company’s trademark;
- Damage caused by wrong operation, careless use and irresistible factors;
- Non technical personnel of the company start the machine for repair, modification or alteration, and remove the machine number or seal;
- Do not install according to the installation instructions provided by the original factory.
- Please keep this card properly and present this card and purchase receipt (invoice) to the technician for inspection.
From the date of selling the switching power supply, the company will provide you with all-round after-sales service, and help you to solve the difficulties at any time.
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B2B FAQ
Do you support BMS communication on your chargers?
Yes. Where the model supports it, the charger can communicate with the battery BMS over CAN or RS485 so charging stops at the values your BMS expects. The interface fitted to this model is listed in Key Specifications.
Can the charging curve be adjusted to our battery?
Yes. Charging voltage, current and the CC/CV stages can be set to your pack specification as part of an OEM / ODM order. Send your battery datasheet and we confirm the profile.
Can you supply the connector we already use?
Yes. We can fit your existing connector type and pin-out, or supply a matched connector and cable assembly.
Do you offer Custom Branding?
Yes. Custom Branding is available on the product label, housing and packaging for OEM and ODM programs.
How does sample development work?
Send your specification and target quantity. We confirm the configuration, provide a sample lead time and quote, then move to production once the sample is approved.
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