DRF120-24-1

AC/DC DIN Rail Power Supply (PSU), ITE, 1 Output, 120 W, 24 VDC, 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:
No. of Outputs:1 Output; Output Power Max:120W; Output Voltage - Output 1:24VDC; Output Current - Output 1:5A; Output Voltage - Output 2:-; Output Current - Output 2:-; Output Voltage
SVHC: No SVHC (15-Jan-2018)
Product Range: DRF Series
No. of Outputs: 1 Output
Output Power Max: 120W
Current, Output 4: -
Input Voltage VAC: 85V AC to 264V AC
Power Supply Output Type: Programmable
Output Current - Output 1: 5A
Output Current - Output 2: -
Output Current - Output 3: -
Output Voltage - Output 1: 24VDC
Output Voltage - Output 2: -
Output Voltage - Output 3: -
Output Voltage - Output 4: -
Power Supply Applications: ITE

Delivery and price
Units per pack	10
Price	121.63 €
Current stock	10+
Lead time	30 days

Datasheet

DRF Series 

120-960W Single Output Full Featured DIN Rail Mount Power Supplies 

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

The DRF series provides full featured DIN Rail mount power supplies for industrial and process control applications.  The series combines careful thermal design, reliability and compact dimensions with energy saving efficiencies of up to 95%. Conservatively rated electrolytic capacitor temperatures offer improved field life-times of up to 10 years. Available in four power levels, 120W, 240W, 480W and 960W, the series provides 24V outputs with a peak loading capability of 150% for up to four seconds.  The models can be operated in parallel, have remote on/off and remote voltage adjustment.  For operation in hazardous locations, the /HL option can be selected on the DRF120 to DRF480 models, which includes coating of the circuit boards for added protection. 

|**Features**|**Benefits**|
|---|---|
|• High Efficiency, up to 95%|• Lowers Operating Costs and Improves Thermal Performance|
|• 150% Peak Power for Four Seconds|• Operates With Capacitive and Inductive Loads|
|• Long E-Capacitor Life (Up to 10 Years)|• Improved Field Life|
|• Low Off-Load Power Consumption|• Saves Energy|
|• Remote On/Off and Remote Output Control|• Supports Intelligent System Control|
|• Hazardous Location Option (/HL)|• Hazardous Location Option (/HL)<br>• Certified For Use in Explosive Atmospheres|



|**Model Selector**|**Model Selector**|**Model Selector**|**Model Selector**|**Model Selector**|**Model Selector**|||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|Model|||||Output Voltage||||Adjustment Range||||Max Current<br>Max Power|||||Peak Output Current (1)<br>Peak Output Power (1)||||
|||||||(V)||||(V)|||(A)||||(W)|||(A)|(W)|
|DRF120-24-1|||DRF120-24-1|||24|||24 - 28||||5||5||120|||7.5|180|
|DRF240-24-1|||DRF240-24-1|||24|||24 - 28||||10||||240|||15|360|
|DRF480-24-1|||DRF480-24-1|||24|||24 - 28||||20||||480|||30|720|
|DRF960-24-1|||DRF960-24-1|||24|||24 - 28||||40||||960|||60|1440|
|||||||||||||||||||||||
||**DRF**||||||**240**||**240**|||**-24**||||**-1**|||||**/HL**|
|||||||||||||||||||||||
||**Series**|||**120, 240, 480, 960W**||**120, 240, 480, 960W**|**120, 240, 480, 960W**||**120, 240, 480, 960W**|||**24V Output**||||**Single phase**|**Single phase**|||**Blank**<br>**/HL**|No ATEX, IEC EX<br>Certification or pcb coating<br>ATEX, IEC EX Certification|
||||||||||||||||||||||(Including pcb coating).|
||||||||||||||||||||||Not available for DRF960.|



## **Related Products** 

|Type|Part Number(s)|Description|
|---|---|---|
|Buffer Module|DBM20|24V 20A Hold-Up DIN Rail Module|
|Redundancy Module|DRM40|20A 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 DIN rail power supplies|DRB120, 240, 480|120 to 480W AC-DC DIN rail power supplies|
|Mid to high power 3-phase DIN rail power supplies<br>DIN rail mount filters<br>DIN rail mount filters|DRB-3<br>RSMN<br>RSEV|3- phase AC-DC DIN rail power supplies<br>3A to 30A 250Vac 2 stage filters with pulse attenuation<br>6A to 30A 250Vac 2 stage filters|
|RSEV DIN rail mounting kit|DIN-RSEV|RSEV DIN rail mounting kit|



DRF Series 

1 

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

|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|
|---|---|---|---|---|---|
|Model<br>DRF120|||DRF240|DRF480|DRF960|
|**Input**||||||
|AC Input Voltage Range (Operating)|Vac|85 - 264<br>|||180 - 264|
|Nominal Input Voltage Range|Vac|100 - 240 (Safety certifed for 90 - 264Vac only)<br>|||200-240|
|Input Frequency|Hz|47 - 63 (Note: Safety certifed for 50/60Hz only)<br>||||
|DC Input Voltage Range (2)<br>Input Current (115 / 230Vac)<br>Inrush Current (typ) (Cold Start)|Vdc<br>A<br>A|125 - 370 (Note: Safety certifed for AC input only)<br>-<br>1.2 / 0.6<br>2.4 / 1.2<br>4.7 / 2.5<br>- / 4.5<br>20||||
|Leakage Current (240Vac, 60Hz)|mA|<1||||
|Power Factor (115 / 230Vac)|-|0.98 / 0.95|0.98 / 0.95|0.98 / 0.92|- / 0.98|
|Harmonic Compliance|-|Meets EN61000-3-2 Class A||||
|Standby Power Consumption (3)|W|<0.5|<0.5|<0.75|<1|
|Hold Up Time at 230Vac Input<br>|ms|>20|||>10|
|Effciency (115 / 230Vac)<br>|%|89 / 91|92.5 / 94|92.5 / 94|- / 95|
|Average Effciency (230Vac) (4)|%|88.6|92.6|92|-|
|Conducted & Radiated EMI<br>Immunity|-<br>-|EN55032-B<br>See immunity table||||
|Safety Certifcations and Markings|-|UL508 Listed, IEC/UL/CSA/EN62368-1 (DRF120-480 only),<br>IEC/UL/CSA/EN61010-1 (DRF960 only), 60950-1, CE Mark and UKCA Mark<br>/HL option: ATEX, IEC Ex. Class 1 Div 2, Group A, B, C, D (not available for DRF960)||||



|**Immunity**|**Immunity**|**Immunity**|**Immunity**|**Immunity**|
|---|---|---|---|---|
||||||
|Test|Standard|Test Level|Criteria|Notes|
|ESD|EN61000-4-2|4kV contact 8kV air discharge|A|See full immunity reports on website|
|Radiated Susceptibility|EN61000-4-3|10V/m: 80MHz to 1GHz<br>3V/m 1.4GHz to 2GHz<br>1V/m 2GHz to 2.7GHz|A||
|Electrical Fast Transient Burst|EN61000-4-4|Input 2kV 5kHz<br>Output 1kV 5kHz<br>Signal contact 1kV 5kHz|A||
|Surge|EN61000-4-5|Input symmetrical (L-L) 2kV<br>Input asymmetrical (L-PE) 4kV<br>Output symmetrical (L-L) 0.5kV<br>Output asymmetrical (L-PE) 1kV|A||
|Conducted Susceptibility<br>|EN61000-4-6|10V|A||
|Magnetic felds|EN61000-4-8|30A/m|A||
|Voltage Dips and<br>Input Interuptions|EN61000-4-11|230Vac at 30%, 50Hz<br>230Vac at 60%, 50Hz<br>230Vac at 100%, 50Hz<br>230Vac at 100%, 50Hz|A<br>A<br>A<br>C||
|SEMI F47 Line Dip|SEMI F47|-|-|>200Vac input, not applicable for the DRF960 model|



DRF Series 

2 

|**Specifications**||||||
|---|---|---|---|---|---|
|Model||DRF120-24-1<br>DRF240-24-1<br>DRF480-24-1||DRF960-24-1||
|**Output**||||||
|Line Regulation|mV||<96|||
|Load Regulation|mV||<240|||
|Ripple & Noise|mV||<240|||
|Temperature Coefficient|%/°C||<0.02|||
|Minimum Load|-||No minimum load required|||
|Over Current Protection|%||>101 of peak current rating. Shutdown after 4 seconds|||
|Over Voltage Protection|V||30 - 35.5|31.5 - 34||
|Remote Voltage Adjustment|-||5 - 6V external voltage adjusts the output from 24 - 28V|||
|Remote Sense|-||None|||
|Remote On/Off|-||When signal is low, the output is active|||
|DC OK Relay|-||Relay contact 30V/1A (closed if Vout > 80% of rated output voltage)|||
|LED Indicators|-|Green LED = DC is OK (>80% Nom). Red LED = Peak Load Operation||||
|Parallel Operation|-||Droop Mode. Refer to instruction manual|||
|**Environmental**||||||
|Operating Temperature|°C|-25 to +70. Start up at -40. Derate linearly to 75% load above 60 (50 for the DRF960)||||
|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/Vdc Input to Output 3,000Vac, Input to Ground 1,500Vac, Output to Ground 500Vdc (DRF960: 500Vac)|Vac/Vdc Input to Output 3,000Vac, Input to Ground 1,500Vac, Output to Ground 500Vdc (DRF960: 500Vac)||||
|Isolation Resistance|MΩ||>100 (500Vdc) at 25°C & 70%RH|||
|Vibration (Non operating)|-||10-55Hz (sweep for 1 min.):19.6m/s2constant, X,Y,Z axis 1 hour each|||
|Shock|-||<196m/s2|||
|**Other**||||||
|Weight (Typ)|g|600|900<br>1300||1735|
|Size (WxHxD)|mm|36.5 x 123.4 x 115<br>49 x 123.4 x 115<br>82 x 123.4 x 115||110 x 123.4 x 139|110 x 123.4 x 139|
|Size (WxHxD)|Inches|1.44 x 4.86 x 4.53|1.44 x 4.86 x 4.53<br>1.93 x 4.86 x 4.53<br>3.23 x 4.86 x 4.53|4.33 x 4.86 x 5.47||
|Case Material|-||Metal|||
|DIN Rail Type|-||TS-35/7.5 or TS-35/15 DIN Rails|||
|MTBF - JEITA (RCR-9102B)*|Hours|140,001|140,001<br>123,911<br>112,108|1,103,504**||
|Warranty|Years||5|||



## Notes 

See website for detailed specifications, test methods and installation manual * The JEITA RCR-9102B calculation method produces figures significantly lower than Telcordia. ** DRF960 calculated to IEC61709. 

(1) Operating period at peak output current is 4 sec, max duty cycle <35% & < rated output power 

(2) Safety certified for AC input only 

(3) Utilizing remote on/off function 

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

|**Signal Connector Pin Assignment (DRF120 model shown)**<br>~~PO~~|**Signal Connector Pin Assignment (DRF120 model shown)**<br>~~PO~~|**Signal Connector Pin Assignment (DRF120 model shown)**<br>~~PO~~|**Signal Connector Pin Assignment (DRF120 model shown)**<br>~~PO~~|
|---|---|---|---|
|<br>PIN<br>1<br>2<br>3<br>4<br>5<br>6<br>7<br>8|Function<br>CB<br>CB-COM<br>N/C<br>N/C<br>CNT+<br>CNT-<br>PV<br>COMM|Detail<br>For parallel operation cut the link between<br>pins 1 & 2 for droop mode current share<br>No connection<br>Remote ON/OFF control, when CNT+ is pulled to<br>TTL low the power supply turns ON, otherwise it turns OFF<br>Programming voltage range 5-6V presets the output to 24-28V|Signal Connector<br>QOROROROROF Se<br>Datatetater:<br>iim<br>peatetete<br>oe)<br>CV<br>a<br>(Ee<br>peatatetete-e<br>6)!<br>la<br>pcesecesescesecente<br>SS (Eo|



Signal Connector: please refer to instruction manual. Potentiometer on top of unit is for factory settings only. Please do not adjust. 

DRF Series 

3 

## **Front Panel View and Connections (DRF240 model shown)** 

|Terminal<br>1|Connection<br>+V: +Output terminal|
|---|---|
|2<br>3|-V: - Output terminal<br>V.ADJ: Output voltage adjust trimmer|
||The output voltage rises when trimmer is turned clockwise.|
|4|L: AC Input terminal. Live line (fuse in line)|
|5|N: AC Input terminal. Neutral line|
|6|: Protective Earth<br>Connect to safety ground of apparatus or equipment.<br>~~an~~|
|7|DC OK :<br>Green LED lights when Output Voltage on and within specification|
|8|PEAK :|
||Red LED lights when Output Current peaks|
|9|DC OK: Relay contact|
|10|DC OK : Relay contact|



## **DRF120 Outline Drawing** 

DRF Series 

4 

## **DRF240 Outline Drawing** 

## **DRF480 Outline Drawing** 

**==> picture [61 x 11] intentionally omitted <==**

**----- Start of picture text -----**<br>
DRF Series<br>**----- End of picture text -----**<br>


5 

## **DRF960 Outline Drawing** 

DRF Series 

6 

## **TDK-Lambda France SAS** 

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

## **TDK-Lambda Americas** 

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

## **Italy Sales Office** 

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

## **Netherlands** 

## **TDK Electronics do Brasil Ltda** 

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

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

## **TDK-Lambda Germany GmbH** 

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

## **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 

## **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 

## **Nordic Sales Office** 

## **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 

Tel: +45 8853 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 https://product.tdk.com/en/power/ 

DRF_260866 April 5th, 2024 V2 

DRF 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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