www.DeltaPSU.com
REV.00
Instruction Manual
1. Safety Instructions
•
If user’s mounting orientation is not according to the recommended mounting orientations,
please consult Delta for further information.
•
To ensure sufficient
convection cooling, always maintain a distance of ≥
20mm from
ventilated surfaces while the device is in operation.
•
The device is not recommended to be placed on low thermal conductive surface. For
example, plastics.
•
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 from entering the device through the
openings during installation. It may cause electric shock, safety hazard, fire and/or product
failure.
•
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 power supply must be mounted by metal screws onto a grounded
metal surface. It is highly recommended that the Earth terminal on the connector be
connected to the grounded metal surface.
2. Device Descriptions
Refer to Fig. 1.:
1 Input & Output terminal block connector
2
DC voltage adjustment potentiometer (Option)
3
DC OK control LED (Green)
4
DC OK relay contact (Option)
3. Installation of the Device
A Side Mounting: Fig. 2 and Fig. 3 show the mounting hole locations for power supply
assembly onto a metal mounting surface. The power supply shall be mounted on
minimum of 2 mounting holes using M4 screw of maximum 5mm length (Refer to Fig.
5). This is to maintain a safety distance between the screw and internal components.
B Base Mounting: Fig. 2 and Fig. 3 show the mounting hole locations for power supply
assembly onto a metal mounting surface. The power supply shall be mounted on
minimum of 4 mounting holes using M4 screw of maximum 4mm length (Refer to Fig.
5). This is to maintain a safety distance between the screw and internal components.
C Fig. 2: Connector
D Fig. 2: This surface belongs to customer’s end system or panel where the device is
mounted.
•
Use flexible cable (stranded or solid) of AWG No. 20-12. The input/output connectors’
allowable current is 23A max per pin. User should calculate and select the suitable wire
specification (type/quantity/diameter) according to actual output current. The torque at the
connector shall not exceed 13Kgf.cm. The insulation stripping length should not exceed
0.275” or 7mm (Refer to Fig. 4).
•
Recommended mounting torque of the product and its mounting accessories is
9~12Kgf.cm.
4. Top Fixing Bracket (Option)
•
For more information about the accessory, please refer to the corresponding technical
datasheet at www.DeltaPSU.com.
PMR-
☐
V320WD
☐☐
Fig. 5. Assembly Reference
Fig. 4. Wire Type
Lug
Stripped wire
Base Mounting (Horizontal)
Base Mounting (Vertical)
Fig. 2. Recommended Mounting Orientations
Fig. 1. Device Descriptions
PMR-
☐
V320WDG
☐
, PMR-
☐
V320WDC
☐
(Front Face Terminal Block)
PMR-
☐
V320WDA
☐
, PMR-
☐
V320WDB
☐
(Standard Terminal Block)
Fig. 3. Mounting Hole Locations
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