1. Introducció
The MEAN WELL LRS-200-12 is a high-efficiency, single-output switching mode power supply designed to convert AC input to a stable 12V DC output. With a maximum output power of 204W and a current capacity of 17A, this enclosed power supply is suitable for a wide range of electronic devices requiring reliable 12V power. It features a robust design with built-in protections and a wide operating temperature range, ensuring optimal performance in various industrial and scientific applications.
2. Informació de seguretat
Please read all safety instructions carefully before installation and operation. Failure to comply may result in electric shock, fire, or damage to the unit.
- Personal qualificat: La instal·lació i el manteniment només els ha de dur a terme personal qualificat.
- Entrada Voltage Selecció: Assegureu-vos que l'entrada de CA voltage selection switch is set correctly (115VAC or 230VAC) before connecting to the mains power. Incorrect setting can cause damage to the unit.
- Connexió a terra adequada: Always connect the protective earth (ground) terminal to a proper ground connection to prevent electric shock.
- Ventilació: Ensure adequate ventilation around the power supply to prevent overheating. Do not obstruct cooling vents.
- Proteccions: This unit includes built-in protections against short circuit, overload, over voltage, and over temperature. If a protection circuit is activated, disconnect power, resolve the issue, and then reconnect power.
- Condicions ambientals: Do not operate the unit in environments exceeding its specified temperature and humidity ranges.
3. Producte acabatview
The LRS-200-12 power supply features an enclosed design with screw terminal blocks for secure input and output connections. A voltage selection switch allows for adaptation to different AC mains voltages.

Figure 3.1: Top/Side view of the LRS-200-12 power supply, showing the AC input voltage selection switch (red) and terminal blocks.

Figura 3.2: Frontal view of the LRS-200-12 power supply, highlighting the compact enclosed design.

Figure 3.3: Packaging for the LRS-200-12 power supply, displaying model information.
4. Configuració
4.1. Muntatge
The LRS-200-12 is an enclosed power supply designed for integration into systems. Ensure it is mounted in a location that allows for adequate airflow and heat dissipation. Maintain proper clearance around the unit to prevent overheating.
4.2. AC Input Voltage Selecció
Before connecting the power supply to the AC mains, verify the position of the voltage selection switch. This switch is typically red and located on the side of the unit (refer to Figure 3.1).
- For 115VAC input (90-132VAC range), set the switch to 115 V.
- For 230VAC input (180-264VAC range), set the switch to 230 V.
PRECAUCIÓ: Setting the switch incorrectly can cause permanent damage to the power supply and connected equipment.
4.3. Connexions de cablejat
Connect the input and output wiring to the designated screw terminal blocks.
- Entrada de CA: Connect the Live (L), Neutral (N), and Earth Ground (GND) wires from your AC source to the corresponding terminals.
- Sortida de corrent continu: Connect the positive (+V) and negative (-V) terminals to your load. Ensure correct polarity.
Tighten all screw terminals securely to prevent loose connections, which can lead to arcing or intermittent operation.
5. Instruccions de funcionament
Once properly installed and wired, the LRS-200-12 power supply is ready for operation.
- Encès: Apply AC power to the input terminals. The power indicator LED (if present) should illuminate, indicating normal operation.
- Vol. De sortidatage: The unit provides a fixed 12V DC output. Do not attempt to adjust the output voltage unless specified by the manufacturer for a particular model variant.
- Capacitat de càrrega: Ensure the connected load does not exceed the maximum output current of 17A or the total output power of 204W to prevent overload protection activation.
- Temperatura de funcionament: The power supply is designed to operate within a temperature range of -30°C to 70°C. Operating outside this range may affect performance and lifespan.
6. Manteniment
The LRS-200-12 power supply is designed for long-term, reliable operation with minimal maintenance.
- Neteja: Periodically inspect the unit for dust accumulation, especially around ventilation openings. Disconnect power before gently cleaning with a soft, dry cloth or compressed air.
- Controls ambientals: Ensure the operating environment remains within the specified temperature and humidity limits. Avoid excessive vibration (unit can withstand 5G vibration test, but continuous high vibration should be avoided).
- Sense peces reparables per l'usuari: Do not attempt to open or repair the power supply. Refer all servicing to qualified personnel. Opening the unit will void the warranty.
7. Solució De Problemes
If the power supply is not functioning as expected, consider the following:
- Sense potència de sortida:
- Check if AC input power is present and correctly connected.
- Verify the AC input voltage selection switch is set correctly (115V or 230V).
- Check for tripped circuit breakers or blown fuses in the AC input line.
- Intermittent Output / Unit Shuts Down:
- Protecció de sobrecàrrega: Disconnect the load and check if the power supply resumes normal operation. Reduce the load if it exceeds 17A or 204W.
- Protecció contra curtcircuits: Disconnect the load and check for any short circuits in the output wiring or the connected device.
- Protecció contra la temperatura: Ensure adequate ventilation. If the unit is hot, allow it to cool down. Reduce ambient temperature if necessary.
- Volum de sortida incorrectetage:
- Confirm the model is LRS-200-12 for 12V output.
- Check load regulation; a very high load might cause a slight voltage gota.
If issues persist after troubleshooting, contact MEAN WELL technical support.
8. Especificacions
| Paràmetre | Valor |
|---|---|
| Número de model | LRS-200-12 |
| Tipus de sortida | Fixed, Single Output |
| Vol. De sortidatage | 12 VDC |
| Corrent de sortida | 17 A |
| Potència de sortida | 204 W |
| Minimum AC Input Voltage | 90 VAC |
| Volum d'entrada de CA màximtage | 264 VAC |
| Freqüència d'entrada | 47 a 63 Hz |
| Eficiència (Tipus) | 87.5% |
| Regulació de la línia | 0.5% |
| Regulació de càrrega | 1% |
| Onda i soroll (màx.) | 150mV |
| Tipus de connector d'entrada | Bloc de terminals de cargol |
| Tipus de connector de sortida | Bloc de terminals de cargol |
| Temperatura mínima de funcionament | -30 °C |
| Temperatura màxima de funcionament | 70 °C |
| Proteccions | Curtcircuit, Sobrecàrrega, Sobrevoltage, Sobretemperatura |
| Aïllament Voltage | 3000 VCA |
| Pes | 0.66 kg (660 g) |
| Dimensions (L x A x A) | 215 x 115 x 30 mm (aprox.) |
| Certificats de seguretat | IEC/UL 62368-1, BSMI CNS14336-1, EAC TP TC004 |
9. Garantia i Suport
MEAN WELL products are manufactured to high-quality standards. For warranty information or technical support, please refer to the official MEAN WELL weblloc web o poseu-vos en contacte amb el vostre distribuïdor autoritzat. Conserveu el rebut de compra per a reclamacions de garantia.