DRB480-24-3-A1

POWER SUPPLY, AC-DC, 24V, 20A, 480W

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.

Manufacturer: TDK-LAMBDA
Product type:
Power Supply Applications:ITE, Industrial & Laboratory Equipment; No. of Outputs:1 Output; Output Power Max:480W; Output Voltage - Output 1:24V; Output Current - O 97AK2911
SVHC: No SVHC (15-Jan-2018)
Product Range: DRB Series
No. of Outputs: 1 Output
Output Power Max: 480W
Current, Output 4: -
Input Voltage VAC: 350V AC to 575V AC
Power Supply Output Type: Fixed
Output Current - Output 1: 20A
Output Current - Output 2: -
Output Current - Output 3: -
Output Voltage - Output 1: 24V
Output Voltage - Output 2: -
Output Voltage - Output 3: -
Output Voltage - Output 4: -
Power Supply Applications: ITE, Industrial & Laboratory Equipment

Delivery and price
Units per pack	10
Price	337.09 €
Current stock	10+
Lead time	30 days

Datasheet

DRB120-3 - DRB960-3 Series 

## 120W - 960W DIN Rail Mount Three Phase Power Supplies 

https://product.tdk.com/en/power/drb https://www.emea.lambda.tdk.com/uk/products/drb-3-phase-series 

The DRB120-3, DRB240-3, DRB480-3 and DRB960-3 series supports the growing trend for mid range 3-phase and DC input DIN power supplies for industrial and process control applications. The series offers an excellent balance between functionality and price, combining reliability and compact dimensions with energy saving efficiencies of up to 96.3%.  Conservatively rated electrolytic capacitor temperatures offer improved field life-times of typically 10 years.  Now available in four power levels, 120, 240, 480 and 960W, the series provides a choice of 12V, 24V, 48 or 72V outputs.  All models have boost (peak) power ratings to handle capacitive loading. A low energy inrush current level avoids nuisance tripping of circuit breakers. Units can be connected in parallel to provide more power or for redundant applications. A DC Good relay and remote on/off is fitted as standard. A choice of models with either screw or push-in wire terminals for automated and robotic wiring and pcb board coating for polluted environments. 

|**Features**|**Benefits**|
|---|---|
|• 380 to 500Vac and 450 to 810Vdc Nominal Inputs|• Supports a Wide Range of Applications|
|• 50% Boost (peak) Power Ratings for up to 600 Seconds|• Supports Capacitive and Inductive Loads|
|• Narrow Case Widths|• Occupies Less Space on the DIN rail|
|• High Efficiency up to 96.3%|• Reduced Energy Usage|
|• Long E-Capacitor Life (typically 10 Years)|• Improved Field Life|
|• Low Off-Load Power Consumption|• Saves Energy|



## **Model Selector** 

|Letter “x” indicates|Letter “x” indicates|Output|Adjustment<br>Maximum|Maximum Peak<br>Maximum<br>Maximum<br>Efficiency|
|---|---|---|---|---|
|termination type and coating|termination type and coating|Voltage|Range<br>Current|Current<br>Power<br>Peak<br>(%)|
|(See part numbering scheme section)|(See part numbering scheme section)|(V)|(V)<br>(A)|(A)(1)<br>(W)<br>Power (W)(1)<br>(400/500Vac)(2)|
|DRB120-12-3-Ax|DRB120-12-3-Ax|12|11.4 - 15<br>10|14.5 for 600s<br>120<br>174<br>89.4 / 89.1|
|DRB120-24-3-Ax|DRB120-24-3-Ax|24|22.5 - 29<br>5|7.5 for 600s<br>120<br>180<br>91.3 / 91.2|
|DRB240-24-3-Ax|DRB240-24-3-Ax|24|22.5 - 29<br>10|15 for 60s<br>240<br>360<br>93.1 / 93.2|
|DRB240-48-3-Ax|DRB240-48-3-Ax|48|45 - 56<br>5|7.5 for 60s<br>480<br>360<br>93.8 / 94.0|
|DRB480-24-3-Ax|DRB480-24-3-Ax|24|22.5 - 29<br>20|30 for 7s<br>480<br>720<br>95.1 / 94.9|
|DRB480-48-3-Ax|DRB480-48-3-Ax|48|45 - 56<br>10|15 for 7s<br>480<br>720<br>95.3 / 95.1|
|DRB480-72-3-Ax|DRB480-72-3-Ax|72|70 - 85<br>6.7|10 for 5s<br>480<br>720<br>95.8 / 95.6|
|DRB960-24-3-Ax|DRB960-24-3-Ax|24|22.5 - 29<br>40|60 for 5s<br>960<br>1440<br>95.2 / 95.1|
|DRB960-48-3-Ax|DRB960-48-3-Ax|48|45 - 56<br>20|30 for 5s<br>960<br>1440<br>95.9 / 95.8|
|DRB960-72-3-Ax|DRB960-72-3-Ax|72|70 - 85<br>13.3|20 for 5s<br>960<br>1440<br>96.3 / 96.2|
|**Related Products**<br>  Type<br>Part Number(s)<br>Description<br> Redundancy module<br>DRM40<br>20 to 40A DIN rail Redundancy module<br>Buffer DIN rail modules<br>DBM20<br>20A DIN rail Buffer (hold-up) modules<br>Low power DIN rail power supplies<br>DRB15, 30, 50, 100<br>15 to 100W AC-DC single phase DIN rail power supplies<br>Mid power DIN rail power supplies<br>DRB120, 240, 480<br>120 to 480W AC-DC single phase DIN rail power supplies<br>Mid to high power premium DIN rail power supplies<br>DRF120, 240, 480, 960<br>120 to 960W AC-DC single phase DIN rail power supplies<br>DIN rail mount filters<br>RTMN<br>6A to 60A 500Vac three phase 2 stage filters with pulse attenuation<br>Mid to low power DIN rail power supplies<br>D1SE<br>120 to 480W AC-DC single phase DIN rail power supplies<br>DC-UPS<br>DUSH<br>960W DC-UPS DIN Rail Modules<br>~~———~~|||||
||||DRB120-3 - 960-3 Series|DRB120-3 - 960-3 Series<br>1|



**==> picture [517 x 34] intentionally omitted <==**

## **Part Numbering Scheme** 

|**DRB**|**120**|**- 24**|**- Option code**|
|---|---|---|---|
|*Contact sales for model availability for A6 & A7 models<br>Output Power<br>120, 240, 480, 960<br>Series<br>Output Voltage<br>12, 24, 48, 72<br>A0<br>Screw terminals<br>A1<br>Push-in terminals<br>A6*<br>Screw terminals & board coating<br>A7*<br>Push-in terminals & board coating||||



*Contact sales for model availability for A6 & A7 models 

## **Specifications** 

|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|
|---|---|---|---|---|---|---|---|---|---|
|<br>DRB120-12-3-Ax<br>Model<br>DRB120-24-3-Ax||||||DRB240-24-3-Ax<br>DRB240-48-3-Ax||DRB480-24-3-Ax<br>DRB480-48-3-Ax<br>DRB480-72-3-Ax|DRB960-24-3-Ax<br>DRB960-48-3-Ax<br>DRB960-72-3-Ax|
|**Input**||||||||||
|AC Input Voltage Range||Vac||3-phase 380 - 500.<br>||||||
|Maximum AC Input Voltage Range||Vac||3-phase 342 - 575 (Note: Safety certifed for 380-500Vac)||||||
|Input Surge Voltage||Vac||620 for 5s||||||
|Maximum DC Input Voltage Range||Vdc||450 - 810 (External DC fuse is required, see instruction manual)||||||
|Input Frequency||Hz||47 - 63||||||
|Input Current (Per Phase Max)||A||0.5||0.8||1.2|2.2|
|Input Current (DC Max)||A||0.5||0.8||1.2|2.2|
|Inrush Current (Typical Cold Start 400 / 500Vac)||A||25 / 30||25 / 30||17 / 22A|17 / 20|
|Dropped Phase Output Power(1)||W||120||240||240|480|
|Leakage Current (575Vac, 60Hz)||mA||<1||||||
|Touch Current (575Vac, 60Hz)||uA||<50||||||
|Power Factor (Typ. 400/500Vac)||-||0.5||0.6||0.92|0.94|
|Harmonic Compliance||-||Meets EN61000-3-2 Class A||||||
|No Load Power Consumption (max in standby)(1)||W||1.7 / 2.1||1.6 / 2.0<br>1.9 / 2.3||1.6 / 1.9|2.0 / 2.3|
|Hold Up Time (minimum) at 400 / 500Vac<br>||ms||20 / 40||20 / 40||24|20|
|Effciency||-||See model selector table||||||
|Average Effciency (400 / 500Vac)(3)||%||87.7 / 89.8<br>89.4 / 88.5||92.3 / 91.9<br>92.8 / 92.3||91.4 / 93.7<br>94.2 / 93.8<br>94.5 / 94.1|94.7 / 94.3<br>95.2 / 94.7<br>95.5 / 95.0|
|Conducted & Radiated EMI||-||EN55011-B, CISPR11-B||||||
|Immunity||-||See immunity table||||||
|Safety Certifcations and Markings||-||IEC/EN/UL/CSA 61010-1, 61010-2-201, 62368-1, CE Mark and UKCA Mark<br>Designed to meet: IEC 60950-1, EN 60204-1, IEC/EN 62477-1, 61204-7, 61558-2-16, 60068-2-60<br>(Flowing mixed gas corrosion test) and IEC 60068-2-11 (Salt mist)||||||
|||||||||||
|**Immunity**||||||||||
|||||||||||
|Test|Standard||Test Level||Criteria|||||
|ESD|EN61000-4-2||See immunity report||A||4kV contact 8kV air discharge|||
|Radiated Susceptibility|EN61000-4-3||See immunity report||A||10V/m: 80MHz to 1GHz<br>3V/m 1.4GHz to 2GHz<br>1V/m 2GHz to 2.7GHz|||
|Electrical Fast Transient Burst|EN61000-4-4||See immunity report||A||Input 4kV 5kHz<br>Output 2kV 5kHz<br>Signal contact 2kV 5kHz|||
|Surge|EN61000-4-5||See immunity report||A||Input symmetrical (L-L) 2kV<br>Input asymmetrical (L-PE) 4kV<br>Output symmetrical (L-L) 0.5kV<br>Output asymmetrical (L-PE) 1kV|||
|Conducted Susceptibility|EN61000-4-6||10V||A||150kHz to 80MHz|||
|Magnetic Fields|EN61000-4-8||30A/m||A||50Hz, 60s each axis (x, y, z)|||
|Voltage Dips and<br>Input Interruptions|EN61000-4-11<br>EN61000-4-34||500ms<br>200ms<br>20ms<br>5000ms||A<br>A<br>A<br>C||400Vac at 70%, 50Hz<br>400Vac at 40%, 50Hz<br>400Vac at 0%, 50Hz<br>400Vac at 0%, 50Hz|||



DRB120-3 - 960-3 Series 

2 

**==> picture [516 x 34] intentionally omitted <==**

|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|
|---|---|---|---|---|---|
|<br>DRB120-12-3-Ax<br>Model<br>DRB120-24-3-Ax|||DRB240-24-3-Ax<br>DRB240-48-3-Ax|DRB480-24-3-Ax<br>DRB480-48-3-Ax<br>DRB480-72-3-Ax|DRB960-24-3-Ax<br>DRB960-48-3-Ax<br>DRB960-72-3-Ax|
|**Output**||||||
|Output Voltage Tolerance|%|±3 maximum||||
|Switching Frequency (Output Converter)|kHz|50 to 135. (Variable with input line and output load)||<br>TBA||
|Line Regulation|%|0.06||0.05|0.01|
|Load Regulation (Not in parallel mode)|%|1.2<br>0.6|0.6<br>0.2|0.4<br>0.2<br>0.15|0.65<br>0.2<br>0.1|
|Load Regulation (In parallel mode)|%|3.8<br>3.0|3.1<br>2.8|2.9<br>2.9<br>2.7|3.05<br>2.7<br>2.5|
|Ripple & Noise (+25 to 70°C ambient)|mV|10|10<br>20|30<br>40<br>50|50<br>40<br>25|
|Ripple & Noise (-25 to <+25°C ambient)|mV|20<br>30|40<br>80|150<br>120<br>150|65<br>120<br>150|
|Minimum Load|-|No minimum load required||||
|Maximum Load Capacitance|uF|10,000<br>5.000|10,000<br>5.000|20,000<br>10,000<br>6,600|20,000<br>20,000<br>13,300|
|Overcurrent Protection<br> (Constant current & hiccup)|%|>142|>142|>145<br>>148<br>>142|>147<br>>150<br>>152|
|Overvoltage Protection (Auto Recovery)|V|<18.4<br><32.7|<32.7<br><59.2|<32.9<br><59.3<br><91.5|<32.9<br><58.2<br><91.5|
|Overtemperature Protection|-|Yes. Auto recovery||||
|Remote Sense|-|None||||
|Remote On/Off|-|Closed contact or <4V enables output||||
|DC Good|-|Closed contact relay when output voltage is >95%||||
|Indicators|-|Green LED indicates DC is OK||||
|Parallel Operation|-|Front panel DIP switch to enable parallel droop mode current sharing.  Refer to Technical Datasheet when paralleling.||||
|**Environmental**||||||
|Operating Temperature Nominal (-40°C start-up(4))|°C|-25 to +55 full load, up to 70 with derating (see Technical Datasheet)||||
|Operating Temperature Derating Above 55 °C|W/°C|2<br>0.8|2.4<br>2.6|12<br>9.6<br>8|16<br>16<br>6.24|
|Storage Temperature|°C|-40 to +85||||
|Humidity (Non condensing)|%RH|95 (Operating & Storage)||||
|Cooling|-|Convection<br>||||
|Altitude|m|3,000 nominal, (6,000 maximum no UL certifcation)||||
|Withstand Voltage (For 1 minute)|Vac|Input to Output 6,400, Input to GND 2,210, Output to GND and signals 1,390||||
|Vibration (Non operating)|-|IEC 60068-2-6: 2g / 10 to 500Hz, 1 hour/direction X,Y,Z on DIN rail||||
|Shock (Non operating)|-|IEC 60068-2-27, 30g / 11ms ±5ms, 3 x each axis on DIN rail||||



DRB120-3 - 960-3 Series 

3 

## **Specifications** 

|<br>Model||DRB120-12-3-Ax<br>DRB120-24-3-Ax|DRB240-24-3-Ax<br>DRB240-48-3-Ax|DRB480-24-3-Ax<br>DRB480-48-3-Ax|DRB960-24-3-Ax<br>DRB960-48-3-Ax|
|---|---|---|---|---|---|
|||||DRB480-72-3-Ax|DRB960-72-3-Ax|
|**Other**||||||
|Weight (Typ)|g|660|780|1050|1750|
|Size (WxHxD)|mm|55 x 129 x 138.2||65 x 129 x 159.3|100 x 129 x 171.9|
|Size (WxHxD)|Inches|2.17 x 5.08 x 5.44||2.56 x 5.08 x 6.27|3.94 x 5.08 x 6.77|
|Case Material|-||Aluminum|||
|DIN Rail Type|-||TS-35/7.5 or TS35/15|||
|MTBF - Telcordia SR-332 issue 4*|Hours|1,100,000|1,100,000|880,000|760,000|
|Warranty|Years||3|||



## Notes 

See website for detailed specifications, test methods and installation manual (1) See Technical specifications for conditions 

(2) Minimum at 100% load 

(3) Average efficiency under 25%, 50%, 75% and 100% load conditions, according to eco-design requirements of EU commission regulation 2019/1782. 

(4) Contact factory for -40°C start up test reports. 

*25°C ambient, full load. 

See website for detailed DC input specifications, test methods and installation manual 

## **Outline Drawing DRB120/240-3** 

DRB120-3 - 960-3 Series 

4 

## **Outline Drawing DRB480-3** 

DRB120-3 - 960-3 Series 

5 

## **Outline DRB960-3** 

DRB120-3 - 960-3 Series 

6 

## **TDK-Lambda France SAS** 

Tel: +33 1 60 12 71 65 tlf.fr-powersolutions@tdk.com www.emea.lambda.tdk.com/fr 

## **Italy Sales Office** 

Tel +39 02 61 29 38 63 tlf.it-powersolutions@tdk.com www.emea.lambda.tdk.com/it 

## **Netherlands** 

tlf.nl-powersolutions@tdk.com www.emea.lambda.tdk.com/nl 

## **TDK-Lambda Europe GmbH** 

Tel: +49 7841 666 0 tlg.powersolutions@tdk.com www.emea.lambda.tdk.com/de 

## **Austria Sales Office** 

Tel: +43 2256 655 84 tlg.at-powersolutions@tdk.com www.emea.lambda.tdk.com/at 

## **Switzerland Sales Office** 

Tel: +41 44 850 53 53 tlg.ch-powersolutions@tdk.com www.emea.lambda.tdk.com/ch 

## **TDK-Lambda Americas** 

Tel:  +1 800-LAMBDA-4 or 1-800-526-2324 tla.powersolutions@tdk.com www.us.lambda.tdk.com 

## **TDK Electronics do Brasil Ltda** 

Tel: +55 11 3289-9599 sales.br@tdk-electronics.tdk.com www.tdk-electronics.tdk.com/en 

## **TDK-Lambda Corporation** 

Tel: +81-3-6778-1113 www.jp.lambda.tdk.com 

## **TDK-Lambda (China) Electronics Co. Ltd.** 

Tel: +86 21 6485-0777 tlc.powersolutions@tdk.com www.lambda.tdk.com.cn 

## **TDK-Lambda Singapore Pte Ltd.** 

Tel: +65 6251 7211 tls.marketing@tdk.com www.sg.lambda.tdk.com 

## **TDK India Private Limited, Power Supply Division** 

Tel:   +91 80 4039-0660 mathew.philip@tdk.com www.sg.lambda.tdk.com 

## **TDK-Lambda Europe GmbH** 

Tel: Tel. +45 3222 8086 tlg.dk-powersolutions@tdk.com www.emea.lambda.tdk.com/dk 

## **TDK-Lambda UK Ltd.** 

Tel: +44 (0) 12 71 85 66 66 tlu.powersolutions@tdk.com www.emea.lambda.tdk.com/uk 

## **TDK-Lambda Ltd.** 

Tel: +9 723 902 4333 tli.powersolutions@tdk.com www.emea.lambda.tdk.com/il-en 

For Additional Information, please visit ~~ee~~ https://product.tdk.com/en/power/ 

DRB120-960-3_360142 October 3rd, 2025 V9 

DRB120-3 - 960-3 Series 

7

Updated at June 4, 2026

TDK-Lambda is globally recognized as a premier manufacturer of highly reliable power supply solutions and power management equipment. With a strong engineering heritage, the company is a trusted partner for mission-critical applications across the industrial, medical, telecommunications, and test and measurement sectors, delivering components that meet stringent international performance and safety standards. Our extensive portfolio of TDK-Lambda products is heavily focused on comprehensive power and line protection, highlighted by a vast selection of industry-leading AC/DC converters. Engineered to deliver exceptional efficiency and stable performance in demanding environments, these power supplies form the backbone of our offering and are built to support the rigorous power demands of modern electronic infrastructure. To complement these primary power solutions, we also offer a targeted range of high-performance DC/DC converters designed for precise, board-level voltage regulation. Furthermore, to ensure the optimal performance and longevity of these power systems, our catalog includes specialized cooling and thermal management components, such as natural convection heat sinks, providing complete thermal stability for your most critical designs.

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