# POWER SUPPLY, AC-DC, 24V TO 28V, 1.25A
**URL**: https://novapart.co/products/DSP30-24/277A2/power-supply-ac-dc-24v-to-28v-125a
**SKU**: DSP30-24/277A2
**Manufacturer**: TDK-LAMBDA
**Price**: €64.7900
**Stock**: 200+
**Lead Time**: 242 days (indicative)
## Description
Power Supply Applications:ITE; No. of Outputs:1 Output; Output Power Max:30W; Output Voltage - Output 1:24V; Output Current - Output 1:1.25A; Output Voltage - O 86R9122
## Specifications
| Parameter | Value |
|---|---|
| Product Range | DSP Series |
| No. Of Outputs | 1 Output |
| Output Power Max | 30W |
| Current, Output 4 | - |
| Input Voltage Vac | 90V AC to 304V AC |
| Power Supply Output Type | Adjustable, Fixed |
| Output Current - Output 1 | 1.25A |
| 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 |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:2630081/)
DSP30-24/277A2 Series
## 30W 100-277VAC Input Power Supply
https://product.tdk.com/en/power/dsp www.emea.lambda.tdk.com/uk/products/dsp
The 30W rated DSP30-24/277A2 AC-DC DIN rail mount power supply can operate from a wide range AC input of 90 up to 305Vac. It is Class II double insulated, requiring no ground connection and has been evaluated to NEC NFPA70 as a Class 2 output. The product also has an isolated AC line frequency synchronizing signal to derive a highly accurate clock signal from for a system timing circuit.
|**Features**|**Benefits**|
|---|---|
|• Low 56mm Profile|• Low Profile for Building Automation|
|• Wide Range AC|• Global use with no input selector switches or transformers|
|• Class I and Class 2|• No ground wire required, evaluated to NEC NFPA70|
DSP30-24/277A2 Series
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## **Specifications**
|**Specifcations**|**Specifcations**|**Specifcations**|
|---|---|---|
|Model
DSP30-24/277A2|||
|**Input**|||
|Input Voltage range|Vac|90 - 305, Class II double insulated (No ground connection required)|
|Input Frequency|Hz|47 - 63
|
|DC Input Voltage Range|Vdc|120 - 370 (safety certifed for AC only)|
|Input Current|A|1.5 at 90Vac, 50Hz|
|Inrush Current (230 Vac cold start)|A|65|
|Power Factor and Flicker|-|Meets EN61000-3-2, EN61000-3-3|
|Harmonics|-|Not applicable|
|Hold Up Time (typ) at 115Vac Input
|ms|25|
|Effciency (Typical)|%|87|
|Conducted & Radiated EMI|-|EN55032-B class A, FCC Class A|
|Immunity
|-|EN61000-4-2, -3, -4, -5, -6, -8 & -11, EN55024|
|Safety Agency Certifcations|-|IEC/UL/CSA/EN62368-1, 60950-1. Evaluated to NEC NFPA70 Class 2 output per UL1310, UKCA and CE Marks|
|**Output**|||
|Output|-|24V, adjustable from 24 to 28V, 1.25A maximum, 30W maximum|
|Line Regulation|mV|240|
|Load Regulation|mV|240|
|Turn On Time (Maximum)
|s|<2.5. when AC input voltage is greater than 115Vac|
|Temperature Coeffcient|%/°C|±0.05|
|Ripple & Noise (20MHz BW)|mV|120|
|Minimum Load|A|None|
|Overcurrent Protection (Typ)|-|<160%|
|Overvoltage Protection|V|30 - 36|
|Overtemperature Protection|-|No|
|Remote Sense|-|No|
|DC Good||No|
|Indicators|-|Green LED = On, Red LED = DC Output Low|
|Parallel Operation|-|Not possible|
|Series Operation|-|Not possible|
|AC Sync Signal|-|24V peak to peak square wave, synchronized to input line frequency|
|**Environmental**|||
|Operating Temperature|°C|-25 to +71 (derate linearly 2.5%/°C from 55 to 71)|
|Storage Temperature|°C|-20 to +85|
|Humidity Operating (non condensing)|%RH|20 - 90|
|Cooling|-|Convection|
|Withstand Voltage (For 1 minute)|Vac|Input to Output 3,000|
|Isolation Resistance|MΩ|>100 at 25°C & 70%RH, Input to Ground 500Vdc|
|**Other**|||
|Weight (Typ)|g|200|
|Size (WxHxD)|mm|53 x 95.4 x 2.19|
|Size (WxHxD)|Inches|2.09 x 3.76 x 2.19|
|Case Material|-|Flame Retardant Polycarbonate (UL94 V-0)|
|Mating Connector|-|AMP# 3-640440-3 connector (pitch=2.54mm). Cable length 50mm|
|DIN Rail type|-|Suitable for mounting on TS-35/7.5 or TS35/15 DIN Rails|
|MTBF|Hours|>100,000 hours, Ground Benign, 25C, nominal input, 100% load|
|Warranty|Year|2 years|
DSP30-24/277A2 Series
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## **Outline Drawing DSP30-24/277A2**
**==> picture [511 x 425] intentionally omitted <==**
## **Output Cable Harness**
Connector: AMP 3-640440-3 Cable length 50mm Red = +24V, Black = 0V, White = Sync Signal
DSP30-24/277A2 Series
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**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/
DSP30-24/277A2 Datasheet_******* February 17th, 2026 V7
DSP30-24/277A2 Series
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## Links
- [View this product on Novapart](https://novapart.co/products/DSP30-24/277A2/power-supply-ac-dc-24v-to-28v-125a)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/tdk-lambda/dsp30-24-277a2/power-supply-ac-dc-24v-to-28v/dp/2630081)
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