DRB240-48-1

AC/DC DIN Rail Power Supply (PSU), ITE & Industrial, 1 Output, 240 W, 48 V, 5 A

⚠️ 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:
SVHC: No SVHC (25-Jun-2025)
Product Range: DRB Series
No. of Outputs: 1 Output
Output Power Max: 240W
Current, Output 4: -
Input Voltage VAC: 85V AC to 264V AC
Power Supply Output Type: Fixed
Output Current - Output 1: 5A
Output Current - Output 2: -
Output Current - Output 3: -
Output Voltage - Output 1: 48V
Output Voltage - Output 2: -
Output Voltage - Output 3: -
Output Voltage - Output 4: -
Power Supply Applications: ITE & Industrial

Delivery and price
Units per pack	10
Price	88.72 €
Current stock	10+
Lead time	30 days

Datasheet

DRB120-480 Series 

120W - 480W DIN Rail Mount Single Phase Power Supplies 

https://product.tdk.com/en/power/drb www.emea.lambda.tdk.com/drb 

The DRB series supports the growing trend for simple and economically priced DIN power supplies for industrial and process control applications.  The series combines low cost, reliability and compact dimensions with energy saving efficiencies of up to 93%.  Conservatively rated electrolytic capacitor temperatures offer improved field life-times of up to 10 years.  Available in three power levels, 120W, 240W and 480W, the series provides a choice of 12V, 24V and 48V outputs. An opto-isolated DC OK signal is fitted for remote monitoring. 

|**Features**|**Benefits**|
|---|---|
|• High Efficiency, up to 93%|• Lowers Operating Costs and Improves Thermal Performance|
|• Narrow Case Widths|• Increases Available Space on the DIN Rail|
|• Curve B Radiated and Conducted EMI|• Reduced Electrical Noise in the System|
|• Long E-Capacitor Life (Up to 10 Years)|• Improved Field Life|
|• Low Off-Load Power Consumption|• Saves Energy|



## **Model Selector** 

||Output|Adjustment|Maximum|Peak Current (A)|Maximum|Maximum|Overvoltage|Efficiency|
|---|---|---|---|---|---|---|---|---|
|Model|Voltage|Range|Current|10s maximum,|Power|Peak|Protection|(%)|
||(V)|(V)|(A)|<35% duty cycle|(W)|Power (W)|(V)|(120/230Vac)(1)|
|DRB120-12-1|12|12 - 13.2|10|12|120|144|13.8 - 17.4|>90 / 91|
|DRB120-24-1|24|24 - 28|5|6|120|144|30 - 35|91 / 93 (Typ)|
|DRB240-24-1|24|24 - 28|10|12|240|288|30 - 35|91 / 93 (Typ)|
|DRB480-24-1|24|24 - 26.4|20|-|480|-|29.4 - 30.6|>90 / 92|
|DRB120-48-1|48|48 - 52.8|2.5|3|120|144|55.2 - 60|>90 / 91|
|DRB240-48-1|48|48 - 52.8|5|6|240|288|55.2 - 60|>90 / 92|
|DRB480-48-1|48|48 - 52.8|10|-|480|-|54.7 - 59.3|>90 / 92|



|**Related Products**|||
|---|---|---|
|Type|Part Number(s)|Description|
|Redundancy module|DRM40|20 to 40A DIN Rail Redundancy Module|
|Low power DIN rail power supplies|DRB15, 30, 50, 100|15 to 100W AC-DC DIN rail power supplies|
|Mid to high power premium DIN rail power supplies|DRF120, 240, 480, 960|120 to 960W AC-DC DIN rail power supplies|
|DIN rail mount filters|RSMN|3A to 30A 250Vac 2 stage filters with pulse attenuation|
|DIN rail mount filters|RSEV|6A to 30A 250Vac 2 stage filters|
|RSEV DIN rail mounting kit|DIN-RSEV|RSEV DIN rail mounting kit|



DRB120-480 Series 

1 

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

|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|
|---|---|---|---|---|---|---|---|---|
|Model<br>DRB120<br>DRB240<br>DRB480|||||||||
|**Input**|||||||||
|Input Voltage Range (Operating)||Vac||85 - 264 (2)<br>||||90 - 264 (2)<br>|
|Nominal Input Voltage Range||Vac||100 - 240 (Note: Safety certifed for 90 - 264Vac only)|||||
|Input Surge Voltage||-||Withstands 300Vac for 5 seconds<br>||||-<br>|
|Input Frequency||Hz||47 - 63 (Note: Safety certifed for 50/60Hz only)|||||
|Input Current (115/230Vac)||A||1.2 / 0.7|||2.4 / 1.4|5 / 2.5|
|Inrush Current (Cold Start)||A||<64 (at 230Vac)||||<40 (at 264Vac)|
|Leakage Current (264Vac 63Hz)||mA||<1||||<1.7|
|Power Factor (115/230Vac)||-||0.98 / 0.9||||0.98 / 0.96|
|Harmonic Compliance||-||Meets EN61000-3-2 Class A|||||
|No Load Power Consumption||W||<0.7|||<0.9|<5|
|Hold Up Time at 100Vac Input (4)<br>||ms||>20|||||
|Effciency<br>||-||See model selector table|||||
|Average Effciency (230Vac) (3)||%||>87|||||
|Conducted & Radiated EMI||-||EN55011-B, EN55032-B, CISPR11-B, CISPR22-B, EN61204-3 Class A|||||
|Immunity<br>||-||See immunity table|||||
|Safety Agency Certifcations and Markings||-||IEC/EN/CSA/UL62368-1, 60950-1, BIS IS 13252(Part 1) for DRB120-240 24V models only, UL508<br>CE Mark and UKCA Mark, (DRB120-240: Built to meet IEC/EN62477-1 OVC III)|||||
||||||||||
|**Immunity**|||||||||
||||||||||
|Test|Standard||Test Level||Criteria||||
|ESD|EN61000-4-2||3||A|-|||
|Radiated Susceptibility|EN61000-4-3||3||A|-|||
|Electrical Fast Transient Burst|EN61000-4-4||4||A|DRB480 Level 3|||
|Surge|EN61000-4-5||3||A|DRB120/240-24-1 Level 4|||
|Conducted Susceptibility<br>|EN61000-4-6||3||A|-|||
|Magnetic felds|EN61000-4-8||4||A|-|||
|Voltage Dips and<br>Input Interuptions|EN61000-4-11<br>Class 3<br>Industrial||0% for 1/2 cycle||A|-|||
||||0% for 1 cycle||B|-|||
||||40% for 10/12 cycles||B|-|||
||||70% for 25/30 cycles||B|-|||
||||80% for 250/300 cycles||<br>B|-|||
|Voltage Fluctuations|EN61000-4-14||3||A|-|||
|SEMI F47 Line Dip|SEMI F47||-||-|> 200Vac input (<70% load DRB120)|||



DRB120-480 Series 

2 

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

|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|
|---|---|---|---|---|
|Model<br>DRB120<br>DRB240<br>DRB480|||||
|**Output**|||||
|Output Voltage Tolerance (100% load)|%|±1|±1|±2|
|Switching Frequency (Output Converter)|kHz|78 - 134|76 - 142|51 - 80|
|Line Regulation|%|<0.1|||
|Load Regulation|%|<1|||
|Ripple & Noise<br>|%|<1 at 25°C, <2.5 over full operating temperature range|||
|Temperature Coeffcient|%/°C|<±0.02|||
|Minimum Load|-|No minimum load required|||
|Overcurrent Protection (Hiccup Mode)|% / A|>1.01% of peak power rating||24V: 21 - 29A, 48V: 10.5 - 15A|
|Overvoltage Protection|V|See model selector table|||
|Overtemperature Protection||Yes. Latching, cycle input voltage to reset|||
|Remote Sense|-|-|||
|Remote On/Off|-|-|||
|DC Good|-|Opto-isolated. On when Vout >80% of nominal output. 50V, 5mA maximum|||
|Indicators|-|Green LED indicates DC is OK|||
|Parallel Operation|-|Not possible|||
|Series Operation|-|Please contact Technical Sales for guidance|||
|**Environmental**|||||
|Operating Temperature (-40°C start-up)|°C|-25 to +70 (Derate linearly to 50% load from 55 to 70).<br>DRB240-48-1: Derate linearly to 50% load from 50 to 70||-20 to +70 (Derate linearly to<br>62.5% load from 50 to 70)|
|Storage Temperature|°C|-40 to +85|||
|Humidity (non condensing)|%RH|5 - 95 (Operating & Storage)|||
|Cooling|-|Convection|||
|Altitude|m|3,000|||
|Withstand Voltage (For 1 minute)|Vac|Input to Output 3,000, Input to GND 1,500, Output to GND 500|||
|Isolation Resistance|MΩ|>100 at 25°C, 70%RH & 500Vdc|||
|Vibration (Non operating)|-|2G, 10 to 55Hz||2G, IEC 60068-2-6, 10 to 500Hz|
|Shock|-|20G, IEC 60068-2-27, half-sine, 22ms, 3 x each axis on DIN rail||5G|
|**Other**|||||
|Weight (Max)|g|500|750|1200|
|Size (WxHxD)|mm|35 x 124 x 125|41 x 124 x 125|84 x 124 x 125|
|Size (WxHxD)|Inches|1.38 x 4.88 x 4.92|1.61 x 4.88 x 4.92|3.31 x 4.88 x 4.92|
|Case Material|-|Aluminum sides and back, steel wrap around cover|||
|DIN Rail Type|-|Suitable for mounting on TS-35/7.5 or TS35/15  DIN Rails|||
|MTBF - Telcordia SR-332 issue 5*|Hours|1,291,932|443,841|644,000|
|Warranty|yrs|3|||



## Notes 

See website for detailed specifications, test methods and installation manual 

(1) 100% load 

(2) DRB480: derate linearly to 92.5% load from 100 to 90Vac. DRB120-12-1, DRB120-48-1 and DRB240-48-1: derate linearly to 88.7% load from 100 to 85Vac 

(3) Measured at 25%, 50%, 75% and 100% load conditions 

(4) At beginning of life 

*24V output model, 25°C ambient, full load, 230Vac input. DRB480 issue 3 

DRB120-480 Series 

3 

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## **Outline DRB 120** 

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## **Outline DRB 240** 

**==> picture [510 x 318] intentionally omitted <==**

DRB120-480 Series 

4 

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## **Outline DRB 480** 

**==> picture [511 x 453] intentionally omitted <==**

DRB120-480 Series 

5 

**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 

## **TDK-Lambda Europe GmbH** 

**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/ 

DRB120-480_260558 August 26th, 2025 V8 

DRB120-480 Series 

6

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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