1. Introduction
The Mean Well RT-65 series comprises enclosed type switching power supplies designed for integration into various end systems. These power supplies feature a metal or plastic case that covers their internal PCB. The series includes models RT-65A, RT-65B, RT-65C, and RT-65D, each offering three-group output. Depending on their rated power or design concept, these units may include or omit a built-in fan.
The RT-65 series is designed to provide reliable power conversion for a wide range of applications.
Video: Mean Well Power Supply Manufacturing Process. This video illustrates the automated assembly and quality control steps involved in producing Mean Well power supplies, showcasing the precision and technology used in their construction.
2. Safety Information and Warnings
Please read and understand all safety instructions before installation or operation to prevent injury or damage to the unit or connected equipment.
- Risk of Electrical Shock: All failures should be examined by a qualified technician. Do not remove the case of the power supply yourself.
- Environmental Conditions: Do not install power supplies in places with high moisture, near water, or near a fire source. Ensure the ambient temperature is within the specified operating range.
- Output Limits: Output current and wattage must not exceed the rated values specified in the product's specifications.
- Grounding: The functional ground (FG) must be connected to earth ground.
- EMC Compliance: Mean Well PSUs are designed according to EMC regulations. As they are component power supplies, the EMC characteristics of the final system must be re-verified after integration.
- FCC Rules: This device complies with Part 15 of the FCC Rules. Operation is subject to two conditions: (a) this device may not cause harmful interference, and (b) this device must accept any interference received, including interference that may cause undesired operation.
- BSMI Certification (for applicable models): For BSMI-certified models, compliance with CNS15936 (EMI) is required. This includes ensuring V1 or above flammability for surrounding equipment and, for Class A equipment, avoiding installation in residential environments to prevent electromagnetic interference.
- High Leakage Current Warning (RST-7K5/15K series): For RST-7K5/15K series that may generate high leakage current in delta connection, specify the leakage current value and add the following warning signs on the final system and its instruction manual:
WARNING - HIGH LEAKAGE CURRENT - Earth connection essential connecting supply
3. Setup and Installation
Proper installation is crucial for the safe and efficient operation of your Mean Well power supply.
3.1 General Installation Guidelines
- Power Disconnection: Before any installation or maintenance, always disconnect your system from the utility power. Ensure it cannot be re-connected inadvertently.
- Insulation Distance: Maintain sufficient insulation distance between mounting screws and internal components. Refer to the case drawing in the specifications for the maximum length of mounting screws.
- Mounting Orientation and De-rating: Non-standard mounting orientations or operation under high ambient temperatures may increase internal component temperature. Consult the specification sheets for optimal mounting positions and de-rating curves.
- Ventilation: Keep fans and ventilation holes free from obstructions. Ensure a 10-15 cm clearance from any adjacent heat sources.
3.2 Wiring Configuration
The wire color coding varies by country. Refer to the table below for guidance:
| Connection | North America | European Harmonized |
|---|---|---|
| Live and ACL | Black | Brown |
| Neutral and ACN | White | Blue |
| PE and FG (Class I only) | Green | Green/Yellow |
3.2.1 Wiring in a Single-Phase Electricity System
- Connect the FG wire (green or green/yellow) of the power supply to PE (green or green/yellow). This step can be skipped if the unit is marked Class II (ungrounded).
- Connect the ACL wire (black or brown) of the power supply to Live (black or brown).
- Connect the ACN wire (white or blue) of the power supply to Neutral (white or blue).
- Ensure all wires are securely fastened to prevent poor contact.
Image: Top view of the Mean Well RT-65 series power supply, showing the perforated metal casing for ventilation.
Image: Bottom view of the Mean Well RT-65 series power supply, displaying the product label with model number, input/output specifications, and certifications.
Image: Side view of the Mean Well RT-65 series power supply, showing the terminal block for wiring connections and the ventilation grille.
3.2.2 Wiring Diagrams
Below are diagrams illustrating typical wiring configurations for single-phase and three-phase systems. Ensure all connections are made according to local electrical codes and safety standards.
Image: Wiring diagram for a single-phase electricity system, showing connections for Live/Hot, Neutral, and Protective Earth (PE) to the power supply (PSU) via a circuit breaker (CB).
Image: Wiring diagram for a three-phase 3-wire/230VAC electricity system, illustrating connections for phases R, S, T to the RST-7K5 power supply with output terminals N1, L1, N2, L2, N3, L3 and FG.
Image: Wiring diagram for a three-phase 4-wire/Y 400VAC electricity system, showing connections for phases R, S, T, and Neutral to the RST-7K5 power supply with output terminals N1, L1, N2, L2, N3, L3 and FG.
3.3 Recommended Wire Sizes
The following table provides recommended wire sizes based on rated current. Note that current should be de-rated to 80% of the suggested value when using 5 or more wires connected to the unit. Ensure all strands of stranded wire enter the terminal connection and are securely fixed.
| AWG | 18 | 16 | 14 | 12 | 10 | 8 |
|---|---|---|---|---|---|---|
| Rated Current of Equipment (Amp) | 6A | 6-10A | 10-16A | 16-25A | 25-32A | 32-40A |
| Cross-section of Lead (mm²) | 0.75 | 1.00 | 1.5 | 2.5 | 4 | 6 |
3.4 Terminal Screw Torque
The recommended torque for terminal screws varies based on the enclosure material. Ensure screws are tightened to the specified torque to ensure secure connections and prevent damage.
3.4.1 Recommended Torque for Aluminum Material
| Size of Screw (Imperial units) | Recommend Torque (kgf-cm) |
|---|---|
| 3-56 | 2.3 ± 20% |
| 4-40 | 3.0 ± 20% |
| 4-48 | 3.3 ± 20% |
| 5-40 | 4.5 ± 20% |
| 5-44 | 4.7 ± 20% |
| 6-32 | 5.6 ± 20% |
| 6-40 | 6.3 ± 20% |
| 8-32 | 10.4 ± 20% |
| 8-36 | 10.8 ± 20% |
| Size of Screw (Metric Units) | Recommend Torque (kgf-cm) |
|---|---|
| M2.5 | 2.2 ± 20% |
| M3 | 4.1 ± 20% |
| M3.5 | 6.5 ± 20% |
| M4 | 9.7 ± 20% |
| M5 | 19.5 ± 10% |
| M6 | 33.1 ± 10% |
| M7 | 55.3 ± 10% |
| M8 | 80.6 ± 10% |
3.4.2 Recommended Torque for Iron Material
| Size of Screw (Imperial units) | Recommend Torque (kgf-cm) |
|---|---|
| 3-56 | 5.0 ± 20% |
| 4-40 | 6.9 ± 20% |
| 4-48 | 7.0 ± 20% |
| 5-40 | 9.4 ± 20% |
| 5-44 | 9.9 ± 20% |
| 6-32 | 12.0 ± 20% |
| 6-40 | 13.4 ± 20% |
| 8-32 | 21.8 ± 20% |
| 8-36 | 23.0 ± 20% |
| Size of Screw (Metric Units) | Recommend Torque (kgf-cm) |
|---|---|
| M2.5 | 4.6 ± 20% |
| M3 | 8.8 ± 20% |
| M3.5 | 13.7 ± 20% |
| M4 | 20.4 ± 20% |
| M5 | 41.1 ± 10% |
| M6 | 69.1 ± 10% |
| M7 | 117.5 ± 10% |
| M8 | 169.4 ± 10% |
If the above-mentioned torque is insufficient for special applications, a Nylok Blue Patch screw is recommended, and extra torque can be applied if needed.
4. Operating Instructions
Once properly installed and wired, the Mean Well RT-65 series power supply will provide stable DC output. Ensure that the load connected to the power supply does not exceed its rated output current and wattage to maintain optimal performance and longevity.
5. Maintenance
The Mean Well RT-65 series power supplies are designed for long-term reliability with minimal maintenance. However, regular checks can help ensure continued optimal performance:
- Ventilation: Periodically inspect the power supply's ventilation holes and any fans (if present) to ensure they are free from dust, debris, or obstructions. Adequate airflow is essential to prevent overheating.
- Connections: Occasionally check all wiring connections to ensure they remain secure. Loose connections can lead to intermittent operation or safety hazards.
- Cleaning: If necessary, gently clean the exterior of the power supply with a dry, soft cloth. Do not use liquid cleaners or allow moisture to enter the unit.
- Power Disconnection: Always disconnect the power supply from the utility before performing any maintenance or inspection.
6. Troubleshooting
If you encounter issues with your Mean Well RT-65 series power supply, consider the following troubleshooting steps:
- No Output Power:
- Verify that the input power is correctly connected and supplied.
- Check all wiring connections for tightness and correct polarity.
- Ensure the power supply's input voltage matches the specified range.
- Intermittent Operation:
- Inspect for loose connections or damaged wiring.
- Check for proper ventilation and ensure the unit is not overheating.
- Verify that the load does not exceed the power supply's rated capacity.
- Overheating:
- Ensure adequate clearance around the unit (10-15 cm from heat sources).
- Clean any dust or debris from ventilation openings.
- Confirm that the ambient temperature is within the specified operating limits.
- All failures should be examined by a qualified technician. Do not attempt to repair the power supply yourself.
7. Specifications
The Mean Well RT-65 series offers various models with different output voltages. Below are general specifications and model-specific output details:
- Rated Capacity: 40-1000VA (including 40VA)
- Type: Power Supply
- Model Number: RT-65 (e.g., RT-65A, RT-65B, RT-65C, RT-65D)
- Origin: Mainland China
- High-concerned chemical: None
7.1 Model-Specific Output Voltages
- RT-65A: Output Voltage 5V
- RT-65B: Output Voltage 7V
- RT-65C: Output Voltage 12V
- RT-65D: Output Voltage 13.5V
For detailed electrical specifications, including current ratings, efficiency, and other technical data, please refer to the official product datasheet available at the manufacturer's website or the provided PDF manual.
A user manual in PDF format is available for more detailed instructions and specifications. You can typically find this on the manufacturer's product page or by searching for 'Mean Well RT-65 series manual PDF'.
8. User Tips
- Always ensure proper ventilation around the power supply to prevent overheating, especially in enclosed systems.
- Double-check all wiring connections for tightness and correct polarity before applying power to avoid damage to the power supply or connected devices.
- When integrating into a system, consider the overall thermal management to ensure the power supply operates within its specified temperature range.
9. Environmental Compliance
Mean Well is committed to environmental responsibility. The RT-65 series complies with various environmental regulations.
9.1 China RoHS Conformity
The product conforms to China RoHS, an Administrative Measure for the Restriction of the Use of Hazardous Substances in Electrical and Electronic Products.
Image: Environment Friendly Use Period Label (10 years), indicating compliance with SJT 11364-2024 and SJ/Z 11388-2009.
9.1.1 Names and Contents of Hazardous Substances Lists
| Part Name | Lead (Pb) | Mercury (Hg) | Cadmium (Cd) | Hexavalent chromium (Cr) | Polybrominated biphenyls (PBB) | Polybrominated diphenyl ethers (PBDEs) | Bis(2-ethylhexyl) phthalate (DEHP) | Dibutyl phthalate (DBP) | Benzyl butyl phthalate (BBP) | Diisobutyl phthalate (DIBP) |
|---|---|---|---|---|---|---|---|---|---|---|
| PCB and its components | X | O | O | O | O | O | O | O | O | O |
| Metal structure parts | X | O | O | O | O | O | O | O | O | O |
| Plastic structure parts | O | O | O | O | O | O | O | O | O | O |
| Accessories | O | O | O | O | O | O | O | O | O | O |
| Cables | X | O | O | O | O | O | O | O | O | O |
- O: The concentration of the hazardous substances within the homogeneous material of that product is less than the concentration limits set by GB/T 26572-2011.
- X: The concentration of the hazardous substances within the homogeneous material of that product is over the concentration limits set by GB/T 26572-2011; however, it follows the standard advised by 2011/65/EU.
9.2 China VOC Conformity
The product conforms to China's Standardization Administration Releases VOC Standards.
| Standard No. | Name of the Standard |
|---|---|
| GB 30981-2020 | Limit of harmful substances of industrial protective coatings |
| GB 33372-2020 | Limits for volatile organic compounds content in adhesive |
| GB 38507-2020 | Limits for volatile organic compounds (VOCs) In printing ink |
| GB 38508-2020 | Limits for volatile organic compounds content in cleaning agents |
9.3 Declaration of Five PBT TSCA Conformity
Mean Well confirms that the product series complies with Use and Risk Management for Five PBT Chemicals under TSCA section 6(h).
| CAS No. | Substance Name |
|---|---|
| 1163-19-5 | Decabromodiphenyl ether (DecaBDE) |
| 68937-41-7 | Phenol, isopropylated, phosphate (3:1) PIP (3:1) |
| 732-26-3 | 2,4,6-Tris (tert-butyl) phenol (2,4,6-TTBP) |
| 133-49-3 | Pentachlorothiophenol (PCTP) |
| 87-68-3 | Hexachlorobutadiene (HCBD) |
10. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your authorized Mean Well distributor or the manufacturer directly. Refer to the official Mean Well website for contact details and the most up-to-date warranty policy.