1. Ifihan
This manual provides essential information for the safe and efficient installation, operation, and maintenance of the Mean Well EDR-120-24 AC/DC DIN Rail Power Supply. The EDR-120 series is an economical, slim 120W power supply designed for industrial applications. It is suitable for installation on TS-35/7.5 or TS-35/15 mounting rails, featuring a compact 40mm width for space-saving within cabinets. This unit operates effectively in ambient temperatures between -20℃ and 60℃ under air convection.
Please Note: The EDR series is primarily for industrial applications. For household applications, please choose the NDR series.
2. Alaye Aabo
Ka gbogbo awọn ilana ni pẹkipẹki ṣaaju fifi sori ẹrọ ati ṣiṣẹ. Ikuna lati tẹle awọn ilana wọnyi le ja si mọnamọna, ina, tabi ipalara nla.
- Oṣiṣẹ ti o peye: Fifi sori ẹrọ ati itọju yẹ ki o ṣe nipasẹ oṣiṣẹ ti o peye nikan.
- Ge asopọ agbara: Always disconnect the main power supply before any installation, wiring, or maintenance work.
- Ilẹ-ilẹ ti o tọ: Rii daju didasilẹ to dara lati ṣe idiwọ mọnamọna.
- Afẹfẹ: Maintain adequate ventilation around the unit. Do not obstruct ventilation openings.
- Awọn ipo Ayika: Operate the power supply within the specified temperature and humidity ranges. Avoid exposure to moisture or corrosive environments.
- Awọn pato Waya: Use copper wire only, rated for a minimum of 75℃.
- Lilo Ile-iṣẹ: This product is designed for industrial control equipment.
3. Ọja Ipariview ati Awọn ẹya ara ẹrọ
The EDR-120-24 is a robust AC/DC power supply offering reliable performance for various industrial needs. Key features include:
- Abajade: 24V, 5A, 120W.
- Iṣagbewọle Voltage: 90 ~ 264VAC / 124 ~ 370VDC.
- Awọn aabo: Short circuit, Overload, Over Voltage, Lori iwọn otutu.
- Iṣiṣẹ: High efficiency of 87.5% (typical).
- Awọn iwe-ẹri: UL and CE certified, UL 508 (Industrial Control Equipment) approved.
- Apẹrẹ Iwapọ: Slim 40mm width for space-saving DIN rail mounting.
- Itutu: Air convection cooling.

olusin 1: Iwaju view of the Mean Well EDR-120-24 power supply, showing input/output terminals, voltage adjustment, and DC OK indicator.
4. Awọn alaye Ilana
The EDR-120-24 features a compact design suitable for DIN rail mounting. Detailed dimensions are provided below.

Figure 2: Mechanical drawing of the EDR-120-24, showing top, side, front, and bottom views with dimensions in millimeters (tolerance ±1mm).
Ebute Pin iyansilẹ
| PIN Bẹẹkọ. | Iṣẹ iyansilẹ |
|---|---|
| 1 | FG (Ilẹ fireemu) |
| 2 | AC/N or DC - |
| 3 | AC / L tabi DC + |
| PIN Bẹẹkọ. | Iṣẹ iyansilẹ |
|---|---|
| 1,2 | DC O wu -V |
| 3,4 | DC Ijade + V |
5. Fifi sori (Eto)
Follow these steps for proper installation of the EDR-120-24 power supply.
5.1 Iṣagbesori
- The EDR-120-24 is designed for DIN rail mounting on TS-35/7.5 or TS-35/15 rails.
- Ensure sufficient clearance for air circulation. A minimum of 5mm left and right, 40mm above, and 20mm below the power supply is recommended for optimal cooling.
- To mount, hook the top edge of the power supply onto the DIN rail, then push the bottom edge firmly until it clicks into place.

olusin 3: Apa view tí ó ń ṣàfihàn ẹ̀rọ ìfìkọ́lé DIN rail.
5.2 Onirin
All connections are made via screw terminal blocks. Refer to the Terminal Pin Assignment tables in Section 4.
- Input Wiring (TB1): Connect the AC mains (L, N) or DC input (+, -) to the corresponding terminals. Ensure the Frame Ground (FG) terminal is properly connected to earth ground. The input voltage ibiti o jẹ 90-264VAC tabi 127-370VDC.
- Output Wiring (TB2): Connect your load to the DC OUTPUT +V and -V terminals.
- Oriṣi Waya: Use copper wire only, rated for a minimum of 75℃.
- Torque: Ensure terminal screws are tightened to the specified torque (Input: 6.5 Lb-in, Output: 5.5 Lb-in) to prevent loose connections.

Olusin 4: Example wiring diagrams for different input configurations. Always refer to the product label for specific terminal markings.
6. Isẹ
Once installed and wired correctly, the EDR-120-24 is ready for operation.
- Agbara Tan: Apply the specified AC or DC input voltage.
- DC OK Indicator: A green LED labeled "DC OK" will illuminate when the output voltage wa larin itewogba.
- O wujade Voltage Atunṣe: Awọn ti o wu voltage can be finely adjusted using the "+V ADJ" potentiometer located on the front panel. Use a small screwdriver to turn the potentiometer clockwise to increase voltage or counter-clockwise to decrease it.
7. Itọju
The EDR-120-24 is designed for long-term reliability with minimal maintenance. However, periodic checks are recommended.
- Ninu: Keep the unit clean and free from dust and debris, especially around ventilation openings, to ensure proper air convection cooling. Use a soft, dry cloth for cleaning.
- Awọn ayẹwo Asopọmọra: Periodically inspect all wiring connections for tightness and signs of corrosion. Re-tighten screws if necessary after disconnecting power.
- Abojuto Ayika: Ensure the operating environment remains within the specified temperature and humidity limits.
8. Laasigbotitusita
If the power supply is not functioning as expected, consider the following common issues:
- No Output / DC OK LED Off:
- Check input power connections and voltage.
- Verify that the input fuse (if external) is intact.
- Check for short circuits or overloads on the output. Disconnect the load and re-test.
- Ensure the ambient temperature is within the operating range.
- Iṣiṣẹ Laarin:
- Ṣayẹwo awọn asopọ onirin alaimuṣinṣin.
- Verify that the load current does not exceed the rated output current (5A). Overload protection may be activating.
- Ensure adequate ventilation to prevent over-temperature shutdown.
- Ìwọ̀n Ìgbéjáde Tí Kò Tọ́tage:
- Adjust the "+V ADJ" potentiometer.
- Daju igbewọle voltage is stable and within the specified range.
If problems persist after checking these points, contact qualified service personnel or the manufacturer.
9. Imọ ni pato
| Paramita | Iye |
|---|---|
| Orukọ awoṣe | EDR-120-24 |
| O wujade Voltage | 24V |
| Ti won won Lọwọlọwọ | 5A |
| Agbara Ijade | 120W |
| Iṣagbewọle Voltage Ibiti | 90 ~ 264VAC / 127 ~ 370VDC |
| Igbohunsafẹfẹ Input | 47 si 63 Hz |
| Iṣiṣẹ (Iru.) | 87.5% |
| Ripple & Ariwo (Max.) | 120mVp-p |
| Ilana laini | 0.5% |
| fifuye Regulation | 1% |
| Minimum Isolation Voltage | 3000VAC |
| Awọn aabo | Short circuit, Overload, Over Voltage, Lori otutu |
| Awọn iwọn otutu ti nṣiṣẹ | -20 ℃ si 60 ℃ |
| Ọna Itutu | Air Convection |
| Awọn iwọn (L x W x H) | 113.5 x 40 x 125.2 mm (4.47 x 1.57 x 4.93 inches) |
| Iṣagbesori | DIN Rail |
| Iwọn | 600g |
| Awọn iwe-ẹri | UL, CE, EU RoHS Compliant |
10. Atilẹyin ọja ati Support
This Mean Well power supply is manufactured to high-quality standards. For warranty information, please refer to the documentation provided with your purchase or contact your distributor. For technical support or service inquiries, please reach out to the seller or the official Mean Well support channels.
Manufacturer: MEAN WELL ENTERPRISES CO., LTD.
Distributed by: KAINSC PRODUCTS KAWAGUCH INDUSTRIAL SCIENTIFIC