1. ບົດແນະນຳ
This manual provides detailed instructions for the MEAN WELL LRS-35-24 35W 24V 1.5A Enclosed AC/DC Power Supply. Please read this manual thoroughly before installation and operation to ensure safe and efficient use of the product.

ຮູບ 1.1: ເກີນview of LRS-35 series features and typical applications.
1.1 ລັກສະນະທີ່ສໍາຄັນ
- Universal AC input / Full range (85 ~ 264 VAC).
- ທົນທານຕໍ່ການປ້ອນຂໍ້ມູນກະແທກ 300 VAC ເປັນເວລາ 5 ວິນາທີ.
- ບໍ່ມີການໃຊ້ພະລັງງານໂຫຼດ <0.2W.
- Compact size and 1U low profile.
- High operating temperature up to 70 °C.
- ການປ້ອງກັນ: ວົງຈອນສັ້ນ, overload, over voltage.
- ເຮັດຄວາມເຢັນໂດຍຄວາມແອອັດ.
- Compliance with IEC/EN 60335-1 (PD3) and IEC/EN61558-1, -2-16 for household appliances.
- Operating altitude up to 5000 meters.
- ທົນທານຕໍ່ການທົດສອບການສັ່ນສະເທືອນ 5G.
- ປະສິດທິພາບສູງ, ອາຍຸການໃຊ້ງານຍາວນານ, ແລະ ຄວາມໜ້າເຊື່ອຖືສູງ.
- ຕົວຊີ້ວັດ LED ສຳລັບເປີດເຄື່ອງ.
- ການທົດສອບການເຜົາໄຫມ້ໂຫຼດເຕັມ 100%.
2. ຄໍາແນະນໍາຄວາມປອດໄພ
ຄຳເຕືອນ: Improper installation or use can lead to electric shock, fire, or other hazards. Always follow these safety guidelines.
- ບຸກຄະລາກອນທີ່ມີຄຸນວຸດທິ: ການຕິດຕັ້ງແລະການບໍາລຸງຮັກສາຄວນຈະຖືກປະຕິບັດໂດຍບຸກຄະລາກອນທີ່ມີຄຸນວຸດທິເທົ່ານັ້ນ.
- ການຕັດການເຊື່ອມຕໍ່ໄຟຟ້າ: Always disconnect the AC power before any installation, wiring, or maintenance work.
- ການຕັ້ງພື້ນທີ່ເຫມາະສົມ: ໃຫ້ແນ່ໃຈວ່າການສະຫນອງພະລັງງານໄດ້ຖືກຮາກຖານຢ່າງຖືກຕ້ອງເພື່ອປ້ອງກັນການຊ໊ອກໄຟຟ້າ.
- ການລະບາຍອາກາດ: Do not obstruct the ventilation openings. Ensure adequate airflow for cooling.
- ສະພາບແວດລ້ອມ: Do not operate in environments with excessive moisture, dust, or extreme temperatures outside the specified range.
- ການປ້ອງກັນການໂຫຼດເກີນ: Do not exceed the specified output current or power ratings to prevent damage and fire hazards.
- insulation: ຮັບປະກັນວ່າການເຊື່ອມຕໍ່ທັງໝົດໄດ້ຮັບການສນວນກັນຄວາມຮ້ອນຢ່າງຖືກຕ້ອງເພື່ອປ້ອງກັນການລັດວົງຈອນ.
- ສະບັບtage ການປັບ: ຜົນຜະລິດ voltage adjustment potentiometer should only be adjusted by qualified personnel using appropriate tools.
3. ຜະລິດຕະພັນເກີນview
The LRS-35-24 is a 35W single-output enclosed type power supply with a 30mm low profile design. It features a metallic mesh case for enhanced heat dissipation.

ຮູບ 3.1: ດ້ານຫນ້າ view of the LRS-35-24 power supply.

ຮູບທີ 3.2: ທາງເທິງ view of the LRS-35-24 power supply showing input and output terminals.
3.1 Terminal Pin Assignment
Refer to the diagram below for the correct terminal connections.

Figure 3.3: Mechanical specification and terminal pin assignment. Pin 1: AC/L, Pin 2: AC/N, Pin 3: FG (Frame Ground), Pin 4: DC Output -V, Pin 5: DC Output +V.
| Pinາຍເລກ PIN | ການມອບໝາຍ |
|---|---|
| 1 | AC/L (Live AC Input) |
| 2 | AC/N (Neutral AC Input) |
| 3 | FG (ພື້ນຂອບ) |
| 4 | DC OUTPUT -V (Negative DC Output) |
| 5 | DC OUTPUT +V (Positive DC Output) |
4. ການຕິດຕັ້ງແລະການຕິດຕັ້ງ
Follow these steps for proper installation of the power supply.
- ການຕິດຕັ້ງ: Mount the power supply in a well-ventilated area. Ensure sufficient clearance around the unit for proper air convection. The unit can be mounted horizontally or vertically, but consider the airflow direction for optimal cooling. Refer to the mechanical specifications for mounting hole dimensions (Figure 3.3).
- Wiring Input (AC):
- Connect the AC Live wire to the 'L' terminal (Pin 1).
- Connect the AC Neutral wire to the 'N' terminal (Pin 2).
- Connect the Frame Ground wire to the 'FG' terminal (Pin 3). This connection is critical for safety.
- Ensure all input wires are securely fastened and have appropriate gauge for the current draw.
- Wiring Output (DC):
- Connect the positive (+) load wire to the '+V' terminal (Pin 5).
- Connect the negative (-) load wire to the '-V' terminal (Pin 4).
- Verify correct polarity before connecting to the load device.
- Ensure all output wires are securely fastened and have appropriate gauge for the current draw.
- ສະບັບtage ການປັບ: ຜົນຜະລິດ voltage can be finely adjusted using the 'V ADJ' potentiometer located near the output terminals. Use a non-conductive screwdriver for adjustment. ຢ່າເກີນ vol ທີ່ລະບຸໄວ້tage ຊ່ວງ.
- ກວດສອບຄັ້ງສຸດທ້າຍ: Before applying power, double-check all wiring connections for correctness, security, and proper insulation.
5. ຄໍາແນະນໍາການດໍາເນີນງານ
Once the power supply is correctly installed and wired, it is ready for operation.
- ເປີດ: Apply AC power to the input terminals. The green LED indicator on the unit will illuminate, indicating that the power supply is active and providing output voltage.
- ຜົນໄດ້ຮັບ Voltage: The power supply will provide a stable 24V DC output. If adjustment is needed, refer to the "Voltage Adjustment" step in the Setup section.
- ໂຫຼດການເຊື່ອມຕໍ່: Connect your DC load device to the output terminals, ensuring correct polarity.
- ການຕິດຕາມ: Observe the LED indicator. If it is off, check the input power and connections.
5.1 Derating Curve and Static Characteristics
The performance of the power supply can be affected by ambient temperature and input voltage. Refer to the following curves for optimal operation.

Figure 5.1: Derating curve showing load percentage vs. ambient temperature, and static characteristics showing load percentage vs. input voltage.
- Derating Curve: Shows the maximum permissible load at different ambient temperatures. For temperatures above 50°C, the output power must be derated to prevent overheating.
- ລັກສະນະຄົງທີ່: Illustrates how the output load capacity is maintained across the input voltage ຊ່ວງ.
6. ບໍາລຸງຮັກສາ
ແຫຼ່ງຈ່າຍໄຟ LRS-35-24 ຖືກອອກແບບມາເພື່ອຄວາມໜ້າເຊື່ອຖືໃນໄລຍະຍາວດ້ວຍການບຳລຸງຮັກສາໜ້ອຍທີ່ສຸດ. ເຖິງຢ່າງໃດກໍ່ຕາມ, ການກວດສອບເປັນໄລຍະສາມາດຊ່ວຍຮັບປະກັນປະສິດທິພາບທີ່ດີທີ່ສຸດ.
- ທໍາຄວາມສະອາດ: Ensure the ventilation holes are free from dust and debris. Use a soft, dry brush or compressed air to clean the unit if necessary. Do not use liquid cleaners.
- ກວດສອບການເຊື່ອມຕໍ່: Periodically inspect all input and output wiring connections to ensure they remain secure. Loose connections can cause intermittent operation or overheating.
- ເງື່ອນໄຂສິ່ງແວດລ້ອມ: ກວດສອບວ່າສະພາບແວດລ້ອມການປະຕິບັດຍັງຄົງຢູ່ພາຍໃນລະດັບອຸນຫະພູມແລະຄວາມຊຸ່ມຊື່ນທີ່ກໍານົດໄວ້.
- ການກວດກາສາຍຕາ: Look for any signs of physical damage, discoloration, or unusual odors. If any issues are observed, disconnect power immediately and consult a qualified technician.
7. ການແກ້ໄຂບັນຫາ
ພາກນີ້ສະຫນອງການແກ້ໄຂບັນຫາທົ່ວໄປທີ່ທ່ານອາດຈະພົບ.
| ບັນຫາ | ສາເຫດທີ່ເປັນໄປໄດ້ | ການແກ້ໄຂ |
|---|---|---|
| ບໍ່ມີຜົນຜະລິດ voltage / LED ປິດ | ບໍ່ມີໄຟປ້ອນເຂົ້າ AC ການເຊື່ອມຕໍ່ສາຍໄຟວ່າງ ຄວາມຜິດພາຍໃນ | ກວດສອບແຫຼ່ງພະລັງງານ AC ແລະ ເບຣກເກີ. ກວດສອບວ່າການເຊື່ອມຕໍ່ສາຍໄຟຂາເຂົ້າ ແລະ ຂາອອກທັງໝົດແມ່ນແໜ້ນໜາ. If power is present and connections are good, the unit may be faulty. Contact support. |
| ຜົນຜະລິດ voltagມີການປ່ຽນແປງ ຫຼື ບໍ່ຖືກຕ້ອງ | ເງື່ອນໄຂການໂຫຼດເກີນ ການໂຫຼດຜິດພາດ ສະບັບtage adjustment potentiometer disturbed | Reduce the load to within specifications. ຕັດການເຊື່ອມຕໍ່ການໂຫຼດ ແລະ ທົດສອບການສະໜອງພະລັງງານຢ່າງເປັນອິດສະຫຼະ. Carefully adjust the 'V ADJ' potentiometer to the desired voltage. |
| Unit is excessively hot | ການລະບາຍອາກາດບໍ່ພຽງພໍ ເງື່ອນໄຂການໂຫຼດເກີນ ອຸນຫະພູມສະພາບແວດລ້ອມສູງ | Ensure adequate airflow around the unit. Clear any obstructions. Reduce the load. Check the derating curve (Figure 5.1). ຖ້າເປັນໄປໄດ້, ໃຫ້ຍ້າຍເຄື່ອງໄປບ່ອນທີ່ເຢັນກວ່າ. |
| Audible noise from unit | Normal operation (slight hum) Overload or fault condition | A slight hum can be normal. If noise is loud or unusual, check for overload. Disconnect power and contact support if noise persists and is concerning. |
For issues not covered here, please contact MEAN WELL technical support.
8. ຂໍ້ມູນຈໍາເພາະ
Detailed technical specifications for the LRS-35-24 power supply.

Figure 8.1: Comprehensive technical specifications for the LRS-35 series, including input, output, protection, and environmental data.
| ພາລາມິເຕີ | ມູນຄ່າ |
|---|---|
| ຕົວແບບ | LRS-35-24 |
| ຊິງຕັນດີຊີ Voltage | 24V |
| ອັນດັບປັດຈຸບັນ | 1.5A |
| ລະດັບພະລັງງານ | 36W |
| ສະບັບtagຊ່ວງ e (ອິນພຸດ) | 85 ~ 264 VAC |
| ຊ່ວງຄວາມຖີ່ | 47 ~ 63 Hz |
| ປະສິດທິພາບ | 88% |
| ອຸນຫະພູມປະຕິບັດການ | -30 ~ +70 ອົງສາ |
| ຂະໜາດ (L x W x H) | 99 x 82 x 30 ມມ |
| ນ້ຳໜັກ | 0.23 ກິໂລ |
| ການປົກປ້ອງ | ວົງຈອນສັ້ນ, Overload, Over voltage |
| ມາດຕະຖານຄວາມປອດໄພ | UL60950-1, TUV EN60950-1, EN60335-1, EN61558-1/-2-16, CCC GB4943 approved |
9. ການຮັບປະກັນ
This MEAN WELL LRS-35-24 power supply comes with a ຮັບປະກັນ 2 ປີ from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage caused by improper installation, misuse, unauthorized modifications, or external factors such as power surges or natural disasters.
For warranty claims, please retain your proof of purchase and contact your retailer or MEAN WELL customer support.
10. ສະຫນັບສະຫນູນແລະຂໍ້ມູນຕິດຕໍ່
For technical assistance, troubleshooting, or further information regarding the MEAN WELL LRS-35-24 power supply, please refer to the official MEAN WELL webເວັບໄຊທ໌ຫຼືຕິດຕໍ່ສະຫນັບສະຫນູນລູກຄ້າຂອງພວກເຂົາ.
- ທາງການ Webເວັບໄຊ: www.meanwell.com
- ຄູ່ມື: Specific product manuals can often be found at www.meanwell.com/manual.html
- ຕິດຕໍ່: ອ້າງເຖິງພາກສ່ວນ "ຕິດຕໍ່ພວກເຮົາ" ກ່ຽວກັບທາງການ webເວັບໄຊສໍາລັບລາຍລະອຽດການຊ່ວຍເຫຼືອພາກພື້ນ.