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Mean Well DBU-3200-24 Programmable Charger 3200W 24V 110A

Name: Mean Well DBU-3200-24 Programmable Charger 3200W 24V 110A
Brand: Mean Well
SKU: DBU-3200-24
Price: 669.28 USD
Availability: InStock

suitable for lead-acid and Li-ion batteriesbuilt-in default 3 stage charging curvebuilt-in I²C interfacePMBus protocolactive current sharing up to 6400W

SKU DBU-3200-24

$669.28 USD

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In stock

Overview

DBU-3200-24 is the model of this series: typical efficiency 93.5%.

DBU-3200 is a 3200W single output AC/DC enclosed charger in 1U low profile with high power density, 37W/inch3. It is an intelligent charger that has pre-loaded programmable charging curves for different types of lead-acid and li-ion batteries. Output programmable function allows 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.

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 I2C 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

Specifications

DBU-3200-24Specifications from the official datasheet (2025-10-23 edition)

OUTPUT

BOOST CHARGE VOLTAGE(Vboost)(default): 28.8V
FLOAT CHARGE VOLTAGE(Vfloat)(default): 27.6V
CONSTANT CURRENT(CC)(default): 110A
VOLTAGE ADJ. RANGE: By built-in potentiometer, SVR
VOLTAGE ADJ. RANGE: 23.5 ~ 30V
RECOMMENDED BATTERY CAPACITY(AMP HOURS)^Note.3: 330 ~ 1000Ah
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%
AC CURRENT (Typ.)^Note.4: 17A/230VAC
INRUSH CURRENT (Typ.): COLD START 55A/230VAC
LEAKAGE CURRENT: <2mA / 230VAC

PROTECTION

OVER VOLTAGE: 31.5 ~ 37.5V 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 output voltage is allowable to 20 ~ 100% of 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 X, Y, Z axes

SAFETY & EMC

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

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

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

Parameter	Standard	Test Level
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

Parameter	Standard	Test Level
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

Test conditions and notes6

1. Modification for charger specification may be required for different battery specification. Please contact 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 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 which will be installed into a 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 altitude higher than 2000m(6500ft).

Technical drawings

DBU-3200-24 BLOCK DIAGRAM — BLOCK DIAGRAM

DBU-3200-24 DERATING CURVE — DERATING CURVE

DBU-3200-24 FUNCTION MANUAL — FUNCTION MANUAL

DBU-3200-24 CURRENT(%)OUTPUT — CURRENT(%)OUTPUT

DBU-3200-24 CURRENT(%)OUTPUT (2) — CURRENT(%)OUTPUT (2)

DBU-3200-24 ◎ To exploit the temperature compensation function,… — ◎ To exploit the temperature compensation function,…

DBU-3200-24 8. Alarm Signal Output — 8. Alarm Signal Output

DBU-3200-24 D B U - 3 2 0 0 series — D B U - 3 2 0 0 series

DBU-3200-24 (V : CN500 connected ; X : CN500 not connected.) — (V : CN500 connected ; X : CN500 not connected.)

DBU-3200-24 (V : CN500 connected ; X : CN500 not connected.) (2) — (V : CN500 connected ; X : CN500 not connected.) (2)

DBU-3200-24 MECHANICAL SPECIFICATION — MECHANICAL SPECIFICATION

DBU-3200-24 ※AC Input Terminal Pin No. Assignment — ※AC Input Terminal Pin No. Assignment

Typical applications

Large scale DC UPS or emergency backup system
Marine battery charger module
Electric scooter or vehicle charger station
Wastewater treatment system
Electrolysis system

Downloads

Certificates5

Mean Well DBR-DRP-DBU-DPU-NSP-3200-DHP-1UT-TUV-3nd Certificate PDF Download

Mean Well DBR-DRP-DBU-DPU-NSP-3200-DHP-1UT-CB(UL)-3nd Certificate PDF Download

Mean Well DBR-DRP-DBU-DPU-NSP-3200-DHP-1UT-CB-(UL)-2nd Certificate PDF Download

Mean Well DBR-DBU-DPU-3200-DHB-DHP-12K1UT-DHP-1UT-A-CB(60950) Certificate PDF Download

Mean Well DBR-DBU-DPU-3200-DHB-DHP-12K1UT-DHP-1UT-A-CB(62368) Certificate PDF Download

Test reports1

Test Report (DBU-3200-24)(EN) PDF Download

FAQ

What is the main output of the Mean Well DBU-3200-24?

The DBU-3200-24 is a programmable 24V charger rated for 3200W output. It delivers up to 110A rated current, making it suitable for high-power industrial battery charging applications.

What battery chemistries does the DBU-3200-24 support?

This model is designed for lead-acid batteries including gel, flooded, and AGM types, as well as Li-ion batteries including lithium iron and lithium manganese. It includes built-in default 3-stage charging curves and also supports a programmable charging curve.

Is the DBU-3200-24 suitable for industrial or OEM battery charging systems?

Yes. Its 3200W power rating, programmable output voltage and current, and PMBus communication support make it a strong fit for industrial and OEM applications that need controlled charging performance. The sheet also lists a CANBus model for systems that require that interface.

Can this charger be used in demanding temperature environments?

The DBU-3200-24 is rated for operation from -30°C to +70°C, subject to the output derating curve. It is cooled by a built-in fan and includes over-temperature protection with auto recovery.

What protection features are included in the DBU-3200-24?

This charger includes over-voltage protection (31.5 ~ 37.5V, re-power on to recover), over-temperature protection, and battery-low protection associated with its DC-OK signal. Over-temperature protection shuts down output voltage and then recovers automatically when the temperature goes down.

Does the DBU-3200-24 support higher-power or redundant charging configurations?

Yes. It has built-in active current sharing, so up to 2 units can be connected in parallel for higher output power; total output current must not exceed 90% of the combined rating (198A for two units). A built-in ORing FET is also part of the output stage.

What input range and compliance approvals does this model have?

The DBU-3200-24 accepts a universal AC input range of 90 to 264VAC and also supports 127 to 370VDC input. It is approved to UL62368-1, CSA C22.2 No. 62368-1, TUV BS EN/EN62368-1, and EAC TP TC 004, and meets EN55032 Class B for conducted and Class A for radiated emissions.

What are the physical size and warranty for the DBU-3200-24?

This model measures 325.8 x 107 x 41 mm (L x W x H) and has a listed weight of 2.76 kg. The spec sheet does not state a warranty period, so please confirm warranty terms at purchase.

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