# AC/DC Open Frame Power Supply (PSU), ITE, 1 Output, 252 W, 85V AC to 265V AC, Adjustable, Fixed

![Product image](https://novapart.co/image/farnell:2383231/)

**URL**: https://novapart.co/products/CUS250LD-24/ac-dc-open-frame-power-supply-psu-ite-1-output-252
**SKU**: CUS250LD-24
**Manufacturer**: TDK-LAMBDA
**Category**: Power & Line Protection || Power Supplies || AC / DC Converters || AC / DC Open Frame Power Supplies
**Price**: €117.1400
**Stock**: 10+
**Lead Time**: 162 days (indicative)

## Description

No. of Outputs:1 Output; Power Rating (Covection Cooling):252W; Power Rating (Forced Cooling):-; Input Voltage VAC:85V AC to 265V AC; Power Supply Output Type:Adjustable, Fixed; Outpu

## Specifications

| Parameter | Value |
|---|---|
| Svhc | Lead (17-Jan-2023) |
| Product Range | CUS250LD Series |
| No. Of Outputs | 1 Output |
| Output Power Max | 252W |
| 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 | 10.5A |
| Output Current - Output 2 | - |
| Output Current - Output 3 | - |
| Output Current - Output 4 | - |
| Output Voltage - Output 1 | 24VDC |
| Output Voltage - Output 2 | - |
| Output Voltage - Output 3 | - |
| Output Voltage - Output 4 | - |
| Power Supply Applications | ITE |
| Power Rating (Forced Cooling) | - |
| Power Rating (Convection Cooling) | 252W |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:2383231/)

**CUS250LD Series** 

**www.** uk.tdk-lambda.com/cus 

## **Single Output 250W Low Profile Power Supplies** 

|**Features**|**Benefits**|
|---|---|
|• High efficiency up to 90%|• Compact convection cooled device|
|• 30mm high|• Slim design for use in panels|
|• Wide range AC input|• Allows global use|
|• Convection cooled|• No fan noise|
|• High grade component selection|• 3 year warranty|



|**Specification**|||
|---|---|---|
|**Model**||**CUS250LD**|
|AC Input Voltage  (3)|VAC|85 - 265VAC (300VAC for 5s)|
|Input Frequency|Hz|47 - 63Hz|
|DC Input Voltage|VDC|120 - 370VDC (No safety certification)|
|Inrush Current (cold start)|A|20A at 115VAC, 40A at 230VAC|
|Power Factor   (1)|-|Meets EN61000-3-2 (Typical PF 0.98/0.95)|
|Input Current (115/230VAC)|A|2.8 / 1.4|
|Temperature Coefficient|-|<0.02%/°C|
|Overcurrent Protection|-|> 105%|
|Overvoltage Protection  (2)|V|3.3V: 4 - 5.25V, 4.2V: 5 - 6.5V, 5V: 5.75 - 7.5V, 12V: 13.8 - 16.2V, 24V: 27.6 - 32.4V|
|Hold Up Time|ms|20ms|
|Leakage Current (240VAC 60Hz)|mA|<0.75mA|
|Remote Sense|-|No|
|LED Indicator|-|Green LED = On|
|Operating Temperature   (3)|°C|-25°C to +70°C.  Derate down to 50% load from +40°C to +70°C|
|Storage Temperature|°C|-30°C to +75°C|
|Operating Humidity (non condensing)|%|30 - 90% RH|
|Storage Humidity (non condensing)|%|10 - 90% RH|
|Cooling|-|Convection|
|Withstand Voltage|-|Input to Ground 2kVAC, Input to Output 3kVAC, Output to Ground 500VAC for 1 min.|
|Isolation Resistance|-|>100M at 25°C & 70%RH, Output to Ground 500VDC|
|Vibration (non operating)|-|10 - 55Hz: 19.6m/s2constant sweep 1 min X, Y, Z for 1 hour|
|Shock|-|< 196.1 m/s2(20G)|
|Immunity|-|IEC61000-4-2 (lv 2, 3), -3 (lv3), -4 (lv 3), -5 (lv3, 4), -6 (lv 3), -8 (lv 4), -11|
|Safety Agency Certifications|-|IEC/UL/CSA/EN62368-1, 60950-1 (cTUVus), CE Mark|
|Conducted & Radiated EMI|-|EN55022-B, FCC--B|
|Weight (Typ)|g|700|
|Size (LxWxH)|mm|198 x 102 x 30|
|Warranty|yrs|3|



## **Notes:** 

(1) 115 / 230VAC input 

(2) Cycle AC to reset 

(3) See derating curves on page 3. Output derating vs input voltage - derate linearly to 80% load from 115VAC to 85VAC input **(not for CUS250LD-3** ) 

CUS250LD Series 

1 

## **Model Selector** 

|**Model**|**Voltage**|**Adjust**<br>**Range**<br>**(V)**|**Max**<br>**Current**<br>**(A)**|**Max**<br>**Power**<br>**(W)**|**Load**<br>**Reg**<br>**(mV)**|**Line**<br>**Reg**<br>**(mV)**|**Ripple**<br>**Noise**<br>**(mV)**|**Efficiency**<br>**(typ) %(1)**|
|---|---|---|---|---|---|---|---|---|
|CUS250LD-3|3.3V|2.97 - 3.63|50|165|40|20|120|86 / 88|
|CUS250LD-4|4.2V|3.78 - 4.62|50|210|40|20|120|87 / 89|
|CUS250LD-5|5V|4.5 - 5.5|50|250|40|20|120|88 / 90|
|CUS250LD-12|12V|10.8 - 13.2|21|252|96|48|120|88 / 90|
|CUS250LD-24|24V|21.6 - 26.4|10.5|252|192|96|150|88 / 90|



## **Outline Drawing CUS250LD Series** 

CUS250LD Series 

2 

**==> picture [362 x 502] intentionally omitted <==**

**----- Start of picture text -----**<br>
 Output Derating Curve CUS250LD<br>OUTPUT  Output Derating vs Ambient Temperature DERATING VS AMBIENT TEMPERATURE<br>100 : : : + : , Pee<br>0 a<br>_ : : : : : ; : :<br>S : : : : : : :<br>ra | alah talathatal daletalatale- latehatalale alelatatatel talslalalale- datalalatele-ghatalalatel taletetalalar-<br>ST 4O bende e ee ee bene eee p eee de eee bee eee eb ee eee eee ee tence<br>20 [en den renee ecb eee dee ede c eee pee eee dee eee gece<br>0 : : : : : : ;<br>-25-20 -10 0 10 20 30 40 50<br>Ta(°C) Ta (˚C)<br> Output Derating vs Input Voltage<br>OUTPUT DERATING VS INPUT VOLTAGE<br>™ -CUS250LD-3 ,  :CUS250LD-4, 5, 12, 24<br>3 ; ; ; ; ; :<br>Cy GO bene ternn see nnew nnn mnenennng angen ne Gran<br>< : : : : : : ; : ; :<br>ie) : : : : : : : : ; :<br>a ee ae es ee a ee a es as<br>0 : : : : : : : ; :<br>85 100 115 130 145 160 175 190 205 220 235<br>Vin (V) Vin (V)<br>Load (%)<br>Load (%)<br>**----- End of picture text -----**<br>


CUS250LD Series 

3 

## **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/ 

CUS250LD Oct20 v6 

CUS250LD Series 

4 



## Links

- [View this product on Novapart](https://novapart.co/products/CUS250LD-24/ac-dc-open-frame-power-supply-psu-ite-1-output-252)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/tdk-lambda/cus-250ld-24/ac-dc-conv-1-o-p-252w-10-5a-24v/dp/2383231)
---

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