Power Supply Cover assembly

1. Unscrew all screws, including the chassis screw.


2. Attach the PCB and screw it down to the terminal as shown in the photo.

3. Insert a fuse into the fuse holder and cover it with a cap. Mean Well recommends slow-blow/time-delay fuse types, rated for around 135% of input current.
  • RT-65A:
100-120VAC - 2.5A
220-240VAC - 1.6A
  • RT-85A:
100-120VAC - 3.15A
220-240VAC - 2A
  • RT-125A:
100-120VAC - 4A
220-240VAC - 2.5A

 


4. Slide in the plastic cover as shown in the photo.


5. Screw it down using two HEX screws, one on the side and one the bottom.


6. Flip the PSU and stick the rubber feet to the bottom of the PSU as shown below:


7. Connect the AC cable and the HAS power supply harness to the PSU (the end with the black connector goes to the PSU, the white connector goes to the HAS). Attach the HAS, power on the PSU and adjust the +5V voltage.

 

Note: Depending on the production date, the RT-125A may require a minimum of 2A load, which means it will not start with just the HAS connected. Similarly for older versions of the RT-85A; the new RT-85A does not have the minimum load requirement.

 


8. After voltage adjustment, cover the hole on top with a dust cap.

 

 

"Basic" Power Supply Cover assembly

1. Attach the AC and DC cables:

AC cable:

  • Usually the cable colors for America are as follows:
    • Ground (Earth) wire: green, or green with a yellow stripe
    • Neutral wire (N): white or gray
    • Single phase live wire (L): black
  • Canada:
    • Ground (Earth) wire: green, or green with a yellow stripe
    • Neutral wire (N): white
    • Single phase live wire (L): black
  • Europe:
    • Ground (Earth) wire: green with a yellow stripe
    • Neutral wire (N): blue
    • Single phase live wire (L): brown

DC cable (HAS power supply harness):

  • Black insulation - GND
  • Red insulation - +5V
  • White insulation - - 5V
  • Yellow insulation - +12V


4. Slide in the plastic cover as shown in the photo.


5. Screw it down using two HEX screws, one on the side and one the bottom.


6. Flip the PSU and stick the rubber feet to the bottom of the PSU as shown below:


7. Attach the HAS, power on the PSU and adjust the +5V voltage.

Note: Depending on the production date, the RT-125A may require a minimum of 2A load, which means it will not start with just the HAS connected. Similarly for older versions of the RT-85A; the new RT-85A does not have the minimum load requirement.


8. After voltage adjustment, cover the hole on top with a dust cap.