Image shown is a representation only. Exact specifications should be obtained from the product datasheet.

Mean Well DBR-3200-48 Rack Mountable Front End Battery Charger 3200W 48V 55A

Name: Mean Well DBR-3200-48 Rack Mountable Front End Battery Charger 3200W 48V 55A
Brand: Mean Well
SKU: DBR-3200-48
Price: 797.67 USD
Availability: InStock

output voltage and current programmableactive current sharing up to 12800W for one 19" rack shelfbuilt-in OR-ing FETsupport hot swap

SKU DBR-3200-48

$797.67 USD

Shipping calculated at checkout.

Available to order

Overview

DBR-3200-48 is the model of this series: typical efficiency 94.5%.

DBR-3200 is a 3200W single output AC/DC front-end charger in 1U low profile with high power density, 37W/inch 3 . 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. The rack-mountable attribute fits DBR-3200 perfectly for the charging, backup or constant current source applications exploiting the rack architecture or central power management.

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)
Output voltage and current programmable
Universal AC input / Full range
Built-in active PFC function
Forced air cooling by built-in thermal controlled DC fans
Built-in OR-ing FET, support hot swap (hot plug)
Active current sharing up to 12800W for one 19" rack shelf
Protections: Battery under voltage / Battery no connection / Short circuit / Over voltage / Over temperature
Optional conformal coating
5 years warranty

Specifications

DBR-3200-48Specifications from the official datasheet (2025-10-23 edition)

OUTPUT

BOOST CHARGE VOLTAGE(Vboost)(default): 57.6V
FLOAT CHARGE VOLTAGE(Vfloat)(default): 55.2V
CONSTANT CURRENT(CC)(default): 55A
VOLTAGE ADJ. RANGE: By built-in potentiometer, SVR 47.5 ~ 58.8V
RECOMMENDED BATTERY CAPACITY(AMP HOURS)^Note.3: 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.): 94.5%
AC CURRENT (Typ.)^Note.4: 17A/230VAC
INRUSH CURRENT (Typ.): COLD START 55A/230VAC
LEAKAGE CURRENT: <1.5mA / 230VAC

PROTECTION

OVER VOLTAGE: 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 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)
DC OK SIGNAL: The isolated TTL signal out. Please refer to the Installation Manual
AC OK SIGNAL: The isolated TTL signal out. Please refer to the Installation Manual

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: 528.8K hrs min. Telcordia SR-332 (Bellcore) ; 44.4K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 325*107*41mm (L*W*H)
PACKING: 2.65Kg;4pcs/11.6Kg/0.93CUFT

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

DBR-3200-48 BLOCK DIAGRAM — BLOCK DIAGRAM

DBR-3200-48 DERATING CURVE — DERATING CURVE

DBR-3200-48 FUNCTION MANUAL — FUNCTION MANUAL

DBR-3200-48 D B R - 3 2 0 0 series — D B R - 3 2 0 0 series

DBR-3200-48 D B R - 3 2 0 0 series (2) — D B R - 3 2 0 0 series (2)

DBR-3200-48 OUTPUTVOLTAGE(V) — OUTPUTVOLTAGE(V)

DBR-3200-48 OUTPUTCURRENT(%) — OUTPUTCURRENT(%)

DBR-3200-48 ◎ To exploit the temperature compensation function, please — ◎ To exploit the temperature compensation function, please

DBR-3200-48 MECHANICAL SPECIFICATION — MECHANICAL SPECIFICATION

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 (DBR-3200-48)(EN) PDF Download

FAQ

What is the Mean Well DBR-3200-48 typically used for?

The DBR-3200-48 is a rack mountable front end battery charger designed for battery charging, backup and constant current source applications. Its 3200W output, 48V rating, and built-in OR-ing FET make it suitable for higher-power systems that need reliable charging or rack-based power infrastructure.

What battery types is the DBR-3200-48 compatible with?

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

What are the main electrical ratings of the DBR-3200-48?

The DBR-3200-48 is rated for 3200W output at 48V with a default constant current of 55A. It accepts a universal input range of 90 to 264VAC or 127 to 370VDC, and the output voltage can be programmed from 75% up to 125% of nominal output voltage.

Can the DBR-3200-48 operate in demanding industrial environments?

This charger is specified for operation from -30°C to +70°C, subject to the output derating curve. It also includes built-in fan cooling with fan-fail alarm and protection features for over temperature, over voltage, overload, and battery low conditions.

What makes the DBR-3200-48 a good fit for rack-based power systems?

This model is built in a compact 325 x 107 x 41 mm, 1U low profile form factor and is designed as a rack mountable front end charger. It also includes a built-in OR-ing FET and DA/DB parallel control signals for operating units in parallel, which is important for scalable rack power designs.

Does the DBR-3200-48 support system monitoring or power management communication?

Yes. The DBR-3200-48 supports PMBus Rev. 1.1 for information reading, status monitoring and output trimming, and a CANBus model is also available. That makes it suitable for applications where charger status or power management integration is required at the system level.

What certifications and warranty does the DBR-3200-48 include?

The DBR-3200-48 is approved to UL62368-1, CSA C22.2 No. 62368-1, TUV BS EN/EN62368-1, and EAC TP TC 004 safety standards. It also meets EMC standards including EN55032 Class B conducted emissions; the warranty period is not stated on the spec sheet.

Payment & Security

Payment methods

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Please log in to write a review.

{ "id":8655302918464, "variants" :[{ "context":"default", "variant_id": 46624428818752, "sku":"DBR-3200-48", "inventory_qty" : 0, "customer" :true, "custom_html" :"\u003cdiv class=\"price\"\u003e\n \u003cdiv class=\"price__default\"\u003e\n \u003cstrong class=\"price__current\"\u003e$797.67\u003c\/strong\u003e\n \u003cs class=\"price__was\"\u003e\u003c\/s\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"unit-price relative\" hidden\u003e\u003cspan class=\"visually-hidden\"\u003eUnit price\u003c\/span\u003e\u003cspan class=\"unit-price__price\"\u003e\u003c\/span\u003e\u003cspan class=\"unit-price__separator\"\u003e \/ \u003c\/span\u003e\u003cspan class=\"unit-price__unit\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n \u003cdiv class=\"price__no-variant\" hidden\u003e\n \u003cstrong class=\"price__current\"\u003eUnavailable\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003c\/div\u003e", "volume_html" :"\u003cvolume-pricing class=\"parent-display inside_product_form\" id=\"volume-pricing-main\" \u003e\u003c\/volume-pricing\u003e" } ] }