Handbook: Installation of Mean Well LED Power Supplies

Standard Operating Procedure: Installation of Mean Well LED Power Supplies

1.0 Purpose and Scope

1.1 Introduction

This Standard Operating Procedure (SOP) provides a formal, step-by-step guide for the safe and compliant installation of Mean Well LED power supplies. Adherence to this procedure is mandatory to ensure the operational integrity of the equipment, the safety of all personnel involved, and compliance with applicable standards. This document standardizes the process from pre-installation checks through final system verification.

1.2 Scope of Procedure

This procedure applies to the installation of the following Mean Well LED Power Supply product families:

• CEN, CLG, ELG, ELGC, ELN, FDHC, FDL, FDLC, GSC, HBG, HBGC
• HLG, HLN, HLP, HSG, HVG, HVGC, IDLC(V), IDPC(V), LCM, LDC
• LPC, LPF, LPFH, LPH, LPHC, LPL, LPLC, LPV, LPVL, NPF
• ODLC(V), OWA, PCD, PLC, PLD, PLM, PLN, PLP, PWM
• SLD, XBG, XLG, ULP

1.3 Intended Application for Specific Models

Note on Specific Model Applications: The following models are intended for installation only in devices where lighting is not the primary use. Examples include copiers, overhead projectors, or scale and display lighting.

LPHC-18, LPC-20, LPC-35, LPC-60, LPC-100, LPC-150, LPH-18, LPV-20, LPV-35, LPV-60, LPV-100, LPV-150, APC, and APV.

1.4 Conclusion

The successful and safe installation of these components begins with a thorough understanding of the associated risks. Therefore, it is critically important to review and adhere to all safety warnings outlined in the following section before beginning any work.

2.0 Critical Safety Warnings and Precautions

2.1 Introduction

This section outlines foundational safety warnings that must be understood and respected before, during, and after the installation process. These directives are designed to prevent electrical shock, equipment damage, and other serious hazards. Failure to comply with these warnings can result in serious injury, death, or irreparable damage to the equipment.

2.2 Mandatory Safety Directives

1. Qualified Personnel Only
   • Risk: Risk of electrical shock and significant energy hazard.
   • Required Action: All failures must be examined by a qualified technician. Under no circumstances should the case of the power supply be removed by unauthorized individuals.
2. Protective Earth (Ground) Connection
   • Risk: Risk of electrical shock from an ungrounded chassis in Class I units.
   • Required Action: For any unit equipped with a Protective Earth (FG) connection, it is mandatory that this connection is securely terminated to the system's PE terminal before any other wiring is connected.
3. Environmental Protection
   • Risk: Risk of irreparable damage due to moisture ingress.
   • Required Action: Units with an IP rating from IP64 to IP66, or IP67-rated units that include an adjustment function (ADJ.), must be installed indoors or within a rain-sheltered enclosure if outdoors. Note that no Mean Well product covered by this procedure may be submerged in water.
4. Thermal Hazard
   • Risk: Overheating and component failure.
   • Required Action: Do not install power supplies in high ambient temperature environments or near a fire source. Always refer to the product's official specification sheet for maximum ambient temperature limitations.
5. Output Limits
   • Risk: Overloading the power supply, leading to failure or hazard.
   • Required Action: The output current and output wattage must not exceed the rated values listed on the product's specifications.
6. Damaged Components
   • Risk: Electrical hazard from compromised insulation or conductors.
   • Required Action: If the external flexible cable or cord of the power supply is damaged, it must be exclusively replaced by the manufacturer, their designated service agent, or a similarly qualified person to avoid a hazard.

With these critical safety protocols understood, the next phase involves preparing the physical and environmental conditions for installation.

3.0 Pre-Installation: Site Preparation and Environmental Checks

3.1 Introduction

Proper site preparation is a crucial step for ensuring the long-term reliability and optimal performance of the LED power supply. The environmental conditions in which the unit operates are as important as the electrical connections. This section details the necessary checks and preparations to be completed before physical installation.

3.2 Thermal Management and Ventilation

To ensure adequate cooling and prevent overheating, the following conditions must be met:

• Maintain proper ventilation around the unit at all times.
• Do not stack any objects on top of the power supply.
• A minimum clearance of 10-15 cm must be maintained if an adjacent device is a heat source.

3.3 Mounting Orientation and De-rating

The mounting orientation and ambient temperature directly impact the thermal performance of the power supply. Non-standard mounting or operation in high ambient temperatures can increase internal component temperatures, which will require a de-rating of the output current to ensure safe operation. The installer must consult the specific model's specification sheet to determine the optimum mounting position and to review the de-rating curve information.

3.4 Structural Mounting Requirements

Before mounting the unit, confirm that the installation wall or lamp structure has sufficient strength to support the power supply. For specific applications such as bay lights, the installation must be secured with safety cables.

With the site properly prepared, the installation and wiring can proceed as detailed in the following section.

4.0 Installation and Wiring Procedure

4.1 Introduction

This section provides the core procedural guide for the physical installation and electrical wiring of the Mean Well LED power supply. Meticulous attention to the sequence and details of these steps is essential for the safety of the installer and the proper functionality of the final system.

4.2 Installation and Wiring Steps

1. Power Disconnection
   • Before commencing any work, disconnect the power supply from the utility. Critically, you must ensure that it cannot be inadvertently re-connected during the installation process.
2. Mechanical Mounting
   • Physically mount the unit in the location prepared according to the guidelines in Section 3.0. For APC, APV, PCD, and PLD series, the recommended assembly screw torque is 3.2~4.8kgf-cm.
3. Cable Selection
   • The current rating of the approved primary (AC input) and secondary (DC output) cables must be greater than or equal to the rating of the power supply unit. Refer to the unit's specification sheet for exact ratings.
4. Wiring Connections
   • Use the following table to identify the correct wires for AC input connections based on regional standards.

*   Perform the connections in the following sequence:
    *   Connect the FG wire (green or green/yellow) to the Protective Earth (PE) terminal. This step can be skipped if the unit is marked as Class II (ungrounded).
    *   Connect the ACL wire (black or brown) to the Live terminal.
    *   Connect the ACN wire (white or blue) to the Neutral terminal.

1. Specialized Connections
   • Waterproof Units: For power supplies equipped with waterproof connectors, verify that the linkage between the unit and the lighting fixture is tight to prevent water intrusion into the system.
   • Dimmable Units: Ensure the connected dimming controller is capable of driving the unit. For models with "3 in 1" or "2 in 1" dimming functions, the output current is adjusted between the DIM+ and DIM- terminals using one of three methods: a 0/1 ~ 10VDC signal, a 10V PWM signal, or a resistance.

With the individual power supply correctly installed, the procedure now moves to system-level integration and final verification.

5.0 System Integration and Final Verification

5.1 Introduction

Integrating a component power supply into a larger electrical system requires final verification to ensure overall safety, performance, and regulatory compliance. The behavior of the power supply as part of a complete system must be confirmed before the installation is considered complete.

5.2 Circuit Breaker Loading

There is a maximum number of LED power supplies that can be connected to a single circuit breaker at 230V due to inrush current. The installer must consult the manufacturer's official installation manual for the full data table corresponding to the specific model and circuit breaker type. Below is a representative sample for illustrative purposes:

Note: These calculated values are based on MCB S200 series manufactured by ABB except for HVG/HVGC series, which are calculated by using MCB S260 series of the same manufacturer.

5.3 System-Level Safety and Compliance

The following system-level actions must be completed by the system integrator:

• Insulation and Enclosure: This device is a component power supply. Proper insulation and isolation around all interconnections must be provided at the system level. For safety, any single insulated wires must be fully covered by the system enclosure.
• EMC Verification: While Mean Well power supplies are designed in accordance with EMC regulations, they are component devices. The EMC characteristics of the end system must be re-verified after the power supply has been integrated.
• Specialized Enclosures: For BSMI certification, the LPF series must be installed within a fireproof enclosure of rating V1 or higher to connect peripheral equipment.

The final steps involve establishing protocols for long-term maintenance and proper end-of-life disposal.

6.0 Maintenance and Disposal

6.1 Introduction

Ongoing vigilance and adherence to proper end-of-life procedures are essential for maintaining long-term safety and environmental responsibility. This section outlines the required actions for maintenance and disposal.

6.2 Maintenance

If the external flexible cable or cord of the power supply is damaged, it must be replaced exclusively by the manufacturer, their service agent, or a similar qualified person in order to avoid a hazard. No other routine maintenance is specified.

6.3 Disposal

At the end of its operational life, the LED power supply must be disposed of together with the lighting equipment it is a part of, in accordance with local regulations for electronic waste.

For all other information regarding these products, the installer should refer to the manufacturer's official website at www.meanwell.com.