MEAN WELL DBU-3200 Series Intelligent Single Output Battery Charger
Product Information
Specifications:
- Model: DBU-3200-24
- Output Boost Charge Voltage (Vboost): 28.8V
- Float Charge Voltage (Vfloat): 27.6V
- Constant Current (CC): 110A
- Voltage Adjustment Range: 23.5 ~ 30V
- Recommended Battery Capacity: 330 ~ 1000Ah
- Input Voltage Range: 90 ~ 264VAC
- Frequency Range: 47 ~ 63Hz
- Power Factor: 0.97/230VAC at full load
- Efficiency: 93.5%
Product Usage Instructions
Charging Batteries:
- Ensure the battery charger is connected to a power source within the input voltage range.
- Connect the appropriate type of battery (lead-acid or Li-ion) to the charger.
- Adjust the output voltage and current programmable settings as needed for your battery.
- Monitor the charging process and ensure all safety protections are functioning properly.
Cooling System:
- The charger features forced air cooling by built-in thermal-controlled DC fans.
- Ensure the charger has proper ventilation to allow for effective cooling during operation.
- Monitor the fan operation to ensure it is functioning correctly to prevent overheating.
Protections:
- The charger provides various protections including battery under voltage, short circuit, over-voltage, and over-temperature.
- If any protection is triggered, immediately disconnect the charger from the power source and troubleshoot the issue before reattempting to charge the battery.
Frequently Asked Questions (FAQ):
- Q: What types of batteries can be charged with this product?
A: The charger is suitable for lead-acid batteries (Gel, flooded, AGM) and Li-ion batteries (lithium iron, lithium manganese). - Q: Is there a warranty for this product?
A: Yes, the product comes with a 5-year warranty.
User’s Manual
Overview
Features
- Charger for lead-acid batteries (Gel flooded and AGM) and Li-ion batteries (lithium iron and lithium manganese)
- Built-in default 3-stage charging curves and programmable curve
- Built-in I’C interface, PMBus protocol (Optional CANBus protocol)
- Universal AC input / Full range
- Built-in active PFC function
- Forced air cooling by built-in thermal-controlled DC fans
- Output voltage and current programmable
- Built-in OR-ing FET
- Active current sharing up to 6400W(1+1)
- Protections: Battery under voltage/Battery no connection/Short circuit/Over voltage/Over temperature
- Optional conformal coating
- 5 years warranty
Applications
- Large-scale DC UPS or emergency backup system
- Marine battery charger module
- Electric scooter or vehicle charger station
- Wastewater treatment system
- Electrolysis system
GTIN CODE
- MW Search: https://www.meanwell.com/serviceGTIN.aspx.
Description
DBU-3200 is a 3200W single output AC/DC enclosed charger in 1U low profile with high power density, 37W/inch’. It is an intelligent charger that has pre-loaded programmable charging curves for different types of lead-acid and lithium batteries. The output programmable function allows the user to adjust the charging voltage and current via the built-in potentiometer or PMBus protocol. Various protection mechanisms as well as the temperature compensation function are provided to assure normal and safe system operation.
Model Encoding/Order Information
| Type | Communication Protocol | Note |
| Blank | PMBus protocol | In Stock |
| CAN | CANBus protocol | By request |
SPECIFICATION
| MODEL | DBU-3200-24 | DBU-3200-48 | |||
|
OUTPUT | BOOST CHARGE VOLTAGE(Vboost)(default) | 28.8V | 57.6V | ||
| FLOAT CHARGE VOLTAGE(Vfloat)(default) | 27.6V | 55.2V | |||
| CONSTANT CURRENT(CC)(default) | 110A | 55A | |||
| VOLTAGE ADJ. RANGE | By built-in potentiometer, SVR | ||||
| 23.5 ~ 30V | 47.5 ~ 58.8V | ||||
| RECOMMENDED BATTERY CAPACITY(AMP HOURS) Note.3 | 330 ~ 1000Ah | 180 ~ 550Ah | |||
| LEAKAGE CURRENT FROM BATTERY (Typ.) | 1.5mA | ||||
| INPUT | VOLTAGE RANGE Note.4 | 90 ~ 264VAC 127 ~ 370VDC | |||
| FREQUENCY RANGE | 47 ~ 63Hz | ||||
| POWER FACTOR (Typ.) | 0.97/230VAC at full load | ||||
| EFFICIENCY (Typ.) | 93.5% | 94.5% | |||
| AC CURRENT (Typ.) Note.4 | 17A/230VAC | ||||
| INRUSH CURRENT (Typ.) | COLD START 55A/230VAC | ||||
| LEAKAGE CURRENT | <2mA / 230VAC | ||||
| PROTECTION | OVERVOLTAGE | 31.5 ~ 37.5V | 63 ~ 75V | ||
| Protection type: Shut down o/p voltage, re-power on to recover | |||||
| OVER TEMPERATURE | Shut down o/p voltage, recovers automatically after temperature goes down | ||||
|
FUNCTION | OUTPUT VOLTAGE PROGRAMMABLE(PV) | Adjustment of output voltage is allowable to 75 ~ 125% of nominal output voltage. Please refer to the Function Manual. | |||
| OUTPUT CURRENT PROGRAMMABLE(PC) | Adjustment of the output voltage is allowable to 20 ~ 100% of the rated current. Please refer to the Function Manual. | ||||
| AUXILIARY POWER | 5V @ 0.3A, tolerance ±10%, ripple 150mVp-p, 12V @ 0.8A, tolerance ±10%, ripple 450mVp-p | ||||
| REMOTE ON-OFF CONTROL | By electrical signal or dry contact Power ON: short Power OFF: open. Please refer to the Function Manual | ||||
| TEMPERATURE COMPENSATION | -3mV / ℃ / cell / (12V = 6 cells ; 24V = 12 cells ; 48V = 24 cells) | ||||
| ALARM SIGNAL | Isolated signal output for T-alarm and DC-OK | ||||
|
ENVIRONMENT | WORKING TEMP. | -30 ~ +70℃ (Refer to “Derating Curve”) | |||
| WORKING HUMIDITY | 20 ~ 90% RH non-condensing | ||||
| STORAGE TEMP., HUMIDITY | -40 ~ +85℃, 10 ~ 95% RH non-condensing | ||||
| TEMP. COEFFICIENT | ±0.03%/℃ (0 ~ 50℃) | ||||
| VIBRATION | 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along the X, Y, and Z axes | ||||
|
SAFETY & EMC (Note 6) | SAFETY STANDARDS | UL62368-1, CSA C22.2 No. 62368-1, TUV BS EN/EN62368-1, EAC TP TC 004 approved | |||
| WITHSTAND VOLTAGE | I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:1.5KVAC | ||||
| ISOLATION RESISTANCE | I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH | ||||
|
EMC EMISSION | Parameter | Standard | Test Level / Note | ||
| Conducted | BS EN/EN55032 (CISPR32) | Class B | |||
| Radiated | BS EN/EN55032 (CISPR32) | Class A | |||
| Harmonic Current | BS EN/EN61000-3-2 | Class A | |||
| Voltage Flicker | BS EN/EN61000-3-3 | —– | |||
|
EMC IMMUNITY | BS EN/EN55035, BS EN/EN61000-6-2 | ||||
| Parameter | Standard | Test Level / Note | |||
| ESD | BS EN/EN61000-4-2 | Level 3, 8KV air ; Level 2, 4KV contact | |||
| Radiated | BS EN/EN61000-4-3 | Level 3 | |||
| EFT / Burst | BS EN/EN61000-4-4 | Level 3 | |||
| Surge | BS EN/EN61000-4-5 | 2KV/Line-Line 4KV/Line-Earth | |||
| Conducted | BS EN/EN61000-4-6 | Level 3 | |||
| Magnetic Field | BS EN/EN61000-4-8 | Level 4 | |||
| Voltage Dips and Interruptions | BS EN/EN61000-4-11 | >95% dip 0.5 periods, 30% dip 25 periods, >95% interruptions 250 periods | |||
| OTHERS | MTBF | 494.2K hrs min. Telcordia SR-332 (Bellcore); 44.8K hrs min. MIL-HDBK-217F (25℃) | |||
| DIMENSION | 325.8*107*41mm (L*W*H) | ||||
| PACKING | 2.76Kg;4pcs/12Kg/0.83CUFT | ||||
| NOTE | 1. Modification for charger specification may be required for different battery specifications. Please contact the battery vendor and MEAN WELL for details. 2. All parameters NOT specially mentioned are measured at 230VAC input, rated load, and 25℃ of ambient temperature. 3. This is MEAN WELL’s suggested range. Please consult your battery manufacturer for their suggestions about the maximum charging current limitation. 4. Derating may be needed under low input voltages. Please check the derating curve for more details. 5. The charger is considered a component that will be installed into the final equipment. All the EMC tests are been executed by mounting the unit on a 600mm*900mm metal plate with 1mm of thickness. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.” (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf) 6. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitudes higher than 2000m(6500ft). ※ Product Liability Disclaimer: For detailed information, please refer to https://www.meanwell.com/serviceDisclaimer.aspx | ||||
BLOCK DIAGRAM
DERATING CURVE
STATIC CHARACTERISTICS
FUNCTION MANUAL
- PMBus Communication Interface
DBU-3200 supports PMBus Rev. 1.1 with a maximum 100KHz bus speed, allowing information reading, status monitoring, output trimming, etc. For details, please refer to the Installation Manual. - Charging Curve
- By factory default, this charger performs the default curve which can be programmed via PMBus.
- To disable/enable the charging curve, change to a 2-stage curve, a different curve frequently used for certain types of batteries in the industry, and so on, please refer to the Installation Manual.
- To program the parameters of the charging curve, SBP-001, the smart battery charging programmer designed by MEAN WELL, and a personal computer are needed. Please contact MEAN WELL for details.
Default 3-stage charging curve
Suitable for lead-acid batteries (flooded, Gel, and AGM) and Li-ion batteries (lithium iron and lithium manganese).
Embedded 3-stage charging curvesMODEL Description Vboost Vfloat CC(default) 24V
Default, programmable 28.8 27.6 110A
Pre-defined, gel batter 28 27.2 Pre-defined, flooded battery 28.4 26.8 Pre-defined, AGM battery 29 27 48V
Default, programmable 57.6 55.2 55A
Pre-defined, gel batter 56 54.4 Pre-defined, flooded battery 56.8 53.6 Pre-defined, AGM battery 58 54 - Note:
When using this charger unit, please configure the system with the recommended battery capacity defined by the specification. Should the battery capacity in use be much smaller so that the user needs to set a low current for charging, under such conditions, it might cause a higher current ripple.
- Front Panel LED Indicators & Corresponding Signal at Function Pins
LED
Description
GreenFloat (stage 3) 
OrangeCharging (stage 1 or stage 2) 
RedThe LED will present a constant red light when the abnormal status (OTP, OLP, fan fail, and charging timeout) arises. Red (Flashing)The LED will flash with the red light when the internal temperature reaches 60℃; under this condition, the unit still operates normally without entering OTP. (In the meantime, an alarm signal will be sent out through the PMBus interface.) - Output Voltage Programming (or, PV / remote voltage programming / remote adjust / margin programming / dynamic voltage trim)
- In addition to the adjustment via the built-in potentiometer, the output voltage can be trimmed by applying EXTERNAL VOLTAGE.
- In addition to the adjustment via the built-in potentiometer, the output voltage can be trimmed by applying EXTERNAL VOLTAGE.
- Output Current Programming (or, PC / remote current programming / dynamic current trim)
- The output current can be trimmed to 20~100% of the rated current by applying EXTERNAL VOLTAGE.
- The output current can be trimmed to 20~100% of the rated current by applying EXTERNAL VOLTAGE.
- Remote ON-OFF Control
The power supply can be turned ON/OFF individually or along with other units in parallel by using the “Remote ON-OFF” function.
Between Remote ON-OFF and +5V-AUX Power Supply Status Switch Short ON Switch Open OFF - Temperature Compensation
- To exploit the temperature compensation function, please attach the temperature sensor, NTC, which is enclosed with the charger, to the battery or the battery’s vicinity.
- The charger is able to work normally without the NTC.
- When multiple chargers are connected in parallel, please configure with the NTC as exhibited in the diagram.
- If the temperature compensation is not required, RTH+ (PIN15) and RTH- (PIN16) from each unit still need to be connected.
- Alarm Signal Output
- There are 2 alarm signals, DC OK and T-ALARM, in TTL signal form, on CN1. These signals are isolated from the output. The maximum sink current is 10mA.
- There are 2 alarm signals, DC OK and T-ALARM, in TTL signal form, on CN1. These signals are isolated from the output. The maximum sink current is 10mA.
- Current Sharing
DBU-3200 has the built-in active current sharing function and can be connected in parallel, up to 2 units, to provide higher output power as exhibited below :- The power supplies to be paralleled should use short and large-diameter wiring and then connected to the load.
- The difference of output voltages among parallel units should be less than 0.2V.
- The total output current must not exceed the value calculated by the following equation: Maximum output current at parallel operation=(Rated current per unit) (Number of unit)××0.9
- When the total output current is less than 5% of the total rated current, or say (5% of Rated current per unit)×(Number of units) the current shared among units may not be balanced.
- CN500/SW1 Function pin connection
Parallel
PSU1 PSU2 CN500 SW1 CN500 SW1 1 unit X ON ∣
∣
2 unit V ON V ON - (V: CN500 connected; X: CN500 not connected.)
- DA, DB, and -V(signal) are connected mutually in parallel.
MECHANICAL SPECIFICATION
(Unit: mm, tolerance ±0.5mm)
Mounting Instruction
| Hole No. | Recommended Screw Size | MAX. Penetration Depth L | Recommended mounting torque |
| 1 | M3 | 4mm | 6~8Kgf-cm |
| 2 | M4 | 5mm | 7~10Kgf-cm |
Control Pin No. Assignment(CN1): HRS DF11-16DP-2DS or equivalent
| Mating Housing | HRS DF11-16DS or equivalent |
| Terminal | HRS DF11-**SC or equivalent |
| Pin No. | Function | Description |
| 1 | +12V-AUX | Auxiliary voltage output, 10.6~13.2V, referenced to GND-AUX (pin2). The maximum load current is 0.8A. This output has the built-in “Oring diodes” and is not controlled by “Remote ON-OFF”. |
| 2 | GND-AUX | Auxiliary voltage output GND. The signal return is isolated from the output terminals (+V & -V). |
| 3 | +5V-AUX | Auxiliary voltage output, 4.5~5.5V, referenced to GND-AUX (pin2). The maximum load current is 0.3A. This output has the built-in “Oring diodes” and is not controlled by “Remote ON-OFF |
| 4 | Remote ON-OFF | The unit can turn the output ON/OFF by electrical signal or dry contact between Remote ON/OFF and +5V-AUX. (Note.2) Short (4.5 ~ 5.5V) : Power ON ; Open (-0.5 ~ 0.5V) : Power OFF ; The maximum input voltage is 5.5V. |
| 5 | DC-OK | High (3.5 ~ 5.5V): When the Vout ≦16V/32V ±1V. Low (-0.5 ~ 0.5V): When Vout ≧16V/32V ±1V. The maximum sourcing current is 10mA and only for output. (Note.2) DC OK is associated with battery low protection. |
| 6 | T-ALARM | High (3.5 ~ 5.5V): When the internal temperature exceeds the limit of the temperature alarm, or when the Fan fails. Low (-0.5 ~ 0.5V): When the internal temperature is normal, and when Fan works normally. The maximum sourcing current is 10mA and only for output(Note.2) |
| 7,8,9 | A0,A1,A2 | PMBus interface address lines. (Note.1) |
| 10 | D0 | DIP-switch interface lines for charging curve selection. (Note.1) |
| 11 | PC | Connection for output current programming. (Note.1) |
| 12 | PV | Connection for output voltage programming. (Note.1) |
| 13 | +V (Signal) | Positive output voltage signal. It cannot be connected directly to the load. |
| 14 | -V (Signal) | Negative output voltage signal. It is for certain function reference; it cannot be connected directly to the load. |
| 15 | RTH+ | The temperature sensor(NTC, 5KOhm) comes along with the charger and can be connected to the unit to allow temperature compensation of the charging voltage. |
| 16 | RTH- |
- Note 1: Non-isolated signal, referenced to the [-V(signal)].
- Note 2: Isolated signal, referenced to GND-AUX.
AC Input Terminal Pin No. Assignment
Control Pin No. Assignment(CN500) : HRS DF11-8DP-2DS or equivalent
| Mating Housing | HRS DF11-8DS or equivalent |
| Terminal | HRS DF11-**SC or equivalent |
Pin No. | Function | Description |
| 1, 2 | DA | Differential digital signal for parallel control. |
| 3, 4 | DB | Differential digital signal for parallel control. |
| 5, 6 | -V (Signal) | Negative output voltage signal. It is for local sense, and certain function references; it cannot be connected directly to the load. |
| 7 | NC | For standard model: None. |
| SDA | For PMBus model: Serial Data used in the PMBus interface. (Note) | |
| CANH | For CANBus model: Data line used in CANBus interface. (Note) | |
| 8 | NC | For standard model: None. |
| SCL | For PMBus model: Serial Clock used in the PMBus interface. (Note) | |
| CANL | For CANBus model: Data line used in CANBus interface. (Note) |
Note: Isolated signal, referenced to GND-AUX.
Control Pin No. Assignment.(SW1)
Pin No. | Function | Description |
| 1, 2 | Terminal resistance | SW1 is the selector of the terminal resistor that is designed for DA/DB signals and parallel control functions. |
INSTALLATION MANUAL
Please refer to:
http://www.meanwell.com/manual.html.
Documents / Resources
 | MEAN WELL DBU-3200 Series Intelligent Single Output Battery Charger [pdf] Owner's Manual DBU-3200-24, DBU-3200-48, DBU-3200 Series Intelligent Single Output Battery Charger, DBU-3200 Series, Intelligent Single Output Battery Charger, Single Output Battery Charger, Output Battery Charger, Battery Charger, Charger |
