RFE2500-48

AC/DC Enclosed Power Supply (PSU), ITE, 1 Outputs, 2.496 kW, 48 VDC, 52 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: AC / DC Enclosed Power Supplies
No. of Outputs:1Outputs; Output Power Max:2.496kW; Output Voltage - Output 1:48V; Output Current - Output 1:52A; Output Voltage - Output 2:-; Output Current - Output 2:-; Output Voltage - O
SVHC: No SVHC (15-Jan-2018)
Product Range: RFE Series
No. of Outputs: 1Outputs
Output Power Max: 2.496kW
Current, Output 4: -
Input Voltage VAC: 85V AC to 265V AC
Input Voltage AC Max: 265V
Input Voltage AC Min: 85V
Power Supply Output Type: Adjustable, Fixed
Output Current - Output 1: 52A
Output Current - Output 2: -
Output Current - Output 3: -
Output Voltage - Output 1: 48VDC
Output Voltage - Output 2: -
Output Voltage - Output 3: -
Output Voltage - Output 4: -
Power Supply Applications: ITE

Delivery and price
Units per pack	1
Price	1010.07 €
Current stock	25+
Lead time	30 days

Datasheet

RFE2500 Series 

## 2500W 1U Industrial Power Supplies 

https://product.tdk.com/en/power/rfe www.emea.lambda.tdk.com/uk/products/rfe 

The RFE2500 AC-DC industrial power supplies are high efficiency and 1U in height. They have internal ORing MOSFETs and current share for parallel operation.  Communication is possible with the power supplies using the optional isolated PMBus™ (I[2] C) interface.  AC fail, DC good, remote output adjust, remote on/off and a 12V auxiliary output are fitted as standard. 

|**Features**|**Benefits**|
|---|---|
|• Internal ORing FETs and Current Share|• Suitable For N+1 Redundancy|
|• Up to 2500W in 1U Height|• Utilizes Less System Space|
|• Full Array of Signals Available|• Easy Remote Monitoring|
|• PMBusTM(I2C)|• Industry Standard Communication Interface|
|• Analog Output Adjustment|• Simple External Resistance or Voltage Connection|



|**Model Selector**|**Model Selector**|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|Model|Output|Adjustment||Max Current (A)|Max Power (W)|Max Power (W)|Max Current (A)|Max Power (W)||Max Current (A) Max Power (W)|Max Current (A) Max Power (W)|
||Voltage (V) Range (V)|Voltage (V) Range (V)(1)(100<Vin<132Vac)||(100<Vin<132Vac)(2)(100<Vin<132Vac)|(100<Vin<132Vac)(2)(170<Vin<180Vac)||(170<Vin<180Vac)(2)|(170<Vin<180Vac)(2)||(Vin>180Vac)|(Vin>180Vac)|
|RFE2500-12|12|9.6 - 13.2|9.6 - 13.2|125|1500||200|2400||200|2400|
|RFE2500-24|24|19.2 - 29||62.5|1500||96|2304||96|2304|
|RFE2500-48|48|38.4 - 58||31.25|1500||50|2400||52|2496|
|||||||||||||
|**RFE2500-**||||**12**|||**/**|||**S**||



Output voltage 12, 24, 48 

blank No PMBus™ / I[2] C S PMBus™ / I[2] C interface 

RFE2500 Series 

1 

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

|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|
|---|---|---|---|---|
|Model<br>RFE2500-12|||RFE2500-24|RFE2500-48|
|**Input**|||||
|AC Input Voltage Range (Operating)|Vac|85 - 265.  See model selector for power derating(2)<br>|||
|Nominal Input Voltage Range|Vac|100 - 240 (Note: Safety certifed for 90-264Vac)<br>|||
|Input Frequency|Hz|47 - 63 (Note: Safety certifed for 50/60Hz only)|||
|Input Current (Max) (110/230Vac)|A|15 / 12|||
|Inrush Current|A|<50|||
|Leakage Current|mA|Less than 0.8 /1.6 at 115/230Vac, 60Hz|||
|Power Factor Correction|-|Meets EN61000-3-2, PF >0.98 at full load|||
|Harmonic Compliance|-|Meets IEC61000-3-2|||
|Hold Up Time<br>|ms|>10, 100/230Vac Input, 80% loading|||
|Effciency|%|90 / 92|90 / 92|91 / 93|
|Conducted EMI|-|Built to meet EN55032 Class B, FCC part 15 Class-B, VCCI Class-B|||
|Radiated EMI|-|Built to meet EN55032 Class A, FCC part 15 Class-A, VCCI Class-A|||
|Immunity<br>|-|See immunity section|||
|Safety Certifcations and Markings|-|IEC/UL/CSA/EN62368-1, 60950-1, CE Mark and UKCA Mark|||



|**Immunity**|**Immunity**|**Immunity**|**Immunity**|**Immunity**|
|---|---|---|---|---|
||||||
|Test|Standard|Test Level|Criteria|Notes|
|ESD|EN61000-4-2|2,3|B|See immunity data on website|
|Radiated Susceptibility|EN61000-4-3|2|A||
|Electrical Fast Transient Burst|EN61000-4-4|2|B||
|Surge|EN61000-4-5|3,4|B||
|Conducted Susceptibility|EN61000-4-6|2|A||
|Magnetic Fields|EN61000-4-8|4|A||
|Voltage Dips / Interruptions|EN61000-4-11|>95% for 0.5 cycles<br>30% for 25/30 cycles<br>>95% for 250/300 cycles|B<br>B<br>B||



|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|
|---|---|---|---|---|
|Model<br>RFE2500-12|||RFE2500-24|RFE2500-48|
|**Output**|||||
|Line Regulation|mV|30|60|120|
|Load Regulation|mV|60|120|240|
|External Load Capacitance|uF/A|1000|||
|Ripple & Noise<br>|mV|240|240|480|
|Temperature Coeffcient|%/°C|<0.02|||
|Minimum Load|-|No minimum load required|||
|Overcurrent Protection|%|115Vac:>110%; 230Vac: 105 - 120%|||
|Overvoltage Protection (1)|%|110 (Tracking). Cycle AC to reset or utilize Remote On/Off|||
|Overtemperature Protection|-|Shutdown with automatic reset. Warning signal provided(1)|||
|Remote Sense Compensation|V/wire|0.25|0.5|1.0|
|Remote On/Off|-|Yes, inhibit & enable|||
|AC Fail Signal|-|Open Collector, ON when AC is within 85-270Vac|||
|DC Good Signal|-|Open Collector, ON when output is above 85 to 95% of setpoint (tracking)<br>|||
|Communication|-|Optional isolated PMBus™ (I2C) interface ( /S suffx) or plug-in LAN module. See model selectors|||
|Auxiliary Output|-|11.2 - 12.5V, 0.5A, 240mV ripple and noise|||
|Indicators|-|AC OK: Green LED, DC OK / Fail: Green / Red LED|||
|Parallel Operation|-|Yes, single wire current share, 5% accuracy of max current, up to 8 units|||



RFE2500 Series 

2 

## **Specifications** 

|Model||RFE2500-12<br>RFE2500-24|RFE2500-48|
|---|---|---|---|
|**Environmental**||||
|Operating Temperature|°C|-10 to +50: 100% load; +50 to +60 derate: 2%/°C of load; +60 to +70 derate: 2.5%/°C of load.||
|||For models with reverse air contact factory.||
|Storage Temperature|°C|-30 to +85||
|Humidity (non condensing)|%RH|Operating: 10 - 90, Storage: 10 - 95||
|Cooling|-|Internal variable speed fans. Airflow enters from the front. Contact factory for reverse airflow option.||
|Altitude|m|3000 max. Derate output current 2%/100m above 2000m.||
|Withstand Voltage (For 1 minute)|-|Input to Output 3kVac, Input to Ground 2kVac, Output to Ground:<br>500Vac<br>500Vac<br>2250Vdc (POE)||
|Isolation Resistance|MΩ|>100 at 25°C, 70%RH & Output to Ground 500Vdc||
|Vibration (Non-operating)|-|Meets IEC61068-2-64 (Basic Transportation)||
|Shock (Non-operating)|-|Meets IEC61068-2-27 (Basic Transportation)||
|**Other**||||
|Weight (Typ)|g|2,500||
|Size (LxWxH)|mm|345 x 107 x 41||
|Size (LxWxH)|Inches|13.6 x 4.21 x 1.61||
|PMBusTM/ I2C Interface (1)|-|Isolated from output, Add suffix /S, PMBusTMcompatible||
|MTBF - Telcordia|Hours|208,356||
|Warranty|Years|3||



Notes 

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

(2) Derate 1.3%/Vac from 100Vac to 85Vac input 

## **Outline Drawing RFE2500** 

RFE2500 Series 

3 

## **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 ~~a~~ https://product.tdk.com/en/power/ 

RFE2500 260825 April 7th, 2025 V4 

RFE2500 Series 

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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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