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Instruction Manual
PMH-24V50WCA
□
www.DeltaPSU.com
1. Safety Instructions
• To ensure sufficient convection cooling, always maintain a safety distance of ≥ 20mm
from all ventilated surfaces while the device is in operation.
• The device is not recommended to be placed on low thermal conductive surface, for
example, plastics.
• Note that the enclosure of the device can become very hot depending on the ambient
temperature and load of the power supply. Do not touch the device while it is in operation
or immediately after power is turned OFF. Risk of burning!
• Do not touch the terminals while power is being supplied. Risk of electric shock.
• Prevent any foreign metal, particles or conductors to enter the device through the
openings during installation. It can cause: Electric shock; Safety Hazard; Fire; Product
failure
• The appliance is not to be used by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have
been given supervision or instruction.
• Warning: When connecting the device, secure Earth connection before connecting L
and N. When disconnecting the device, remove L and N connections before removing
the Earth connection.
• The device is earthed and must be inaccessible.
2. Device Descriptions
Refer to Fig. 1.:
䐟
Input & Output terminal block connector
䐠
DC voltage adjustment potentiometer (22V - 28V)
䐡
DC OK control LED (Green)
3. Installation of the Device
Refer to Fig. 2.:
䑵
Mounting holes for power supply assembly onto the mounting surface. The power supply
shall be mounted on minimum 2 mounting holes using M3 screw minimum 5mm length.
䑶
This surface belongs to customer’s end system or panel where the power supply is
mounted.
䑷
Connector
• Use flexible cable (stranded or solid) with the following sizes:
• The torque at the Connector shall not exceed 13 Kgf.cm. The insulation stripping length
should not exceed 0.275” or 7mm (Refer to Fig. 3).
4. Installation of Mounting Accessories
Refer to Fig. 4.:
• Only use M3 screw ≤ 6mm through the base mounting holes. This is to keep a safety
distance between the screw and internal components.
• Recommended mounting tightening torque: 4~8 Kgf.cm.
REV.00
Fig. 1. Device Descriptions
PMH-24V50WCAA (Standard Connector)
PMH-24V50WCAJ (IP20 Connector)
PMH-24V50WCAL (Front Face Connector)
Fig. 3. Wire Type
Fig. 4. Mounting Screw
Lug
Stripped wire
Mounting
accessories
Mounting
screw
Chassis of
the device
6mm max.
7 mm
Fig. 2. Mounting Orientation
Side Mounting (Vertical)
Base Mounting (Vertical)
Side Mounting (Horizontal)
PMH-24V50WCAH (Harness Connector)
PMH-24V50WCAA
PMH-24V50WCAJ
PMH-24V50WCAL
AWG 20-14
AWG 20-12
AWG 20-12
A
C
B
B
B
C
A
C
A
A
C
B
B
B
C
A
C
A
A
C
B
B
B
C
A
C
A
3
1
Base surface
Top surface
Side surface
Ventilated surface
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