KEPCO RCW 350W Series - Manual (Page 6)

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RCW350W 120607
FIGURE 2 PERCENT POWER RATING VERSUS AMBIENT TEMPERATURE
3.0 OPERATION
3.1 INSTALLING THE POWER SUPPLY
The unit may be mounted in accordance with the Mechanical Outline Drawing, Figure 3 (mounting
holes are provided). The temperature of the air surrounding the Power Supply must not exceed the
ambient values given in the Specifications Table 1. See Figure 4 for horizontal and vertical mount-
ing of the RCW 350W Power Supply.
The RCW 350W has four tapped Metric M4x8L mounting holes on the bottom and top sides of the
unit for horizontal installation as well as four tapped Metric M4x8L mounting holes on each of the
side surfaces for vertical installation. Free air space must be provided at the rear of the unit to allow
for maximum ventilation and exhaust of the fan. Power Supply specifications should be derated for
certain operating temperatures (refer to Table 1).
Referring to Figure 4, the air cooling holes on the front panel of the unit and the front of the fan
should be kept clear at least 1 inch (20mm) from adjacent equipment and in a well ventilated area.
In case surface "A" is not kept clear by at least 1/2 inch (10mm) from adjacent equipment and in a
well ventilated area, the maximum load for the 3.3 volt and 5 volt models should be limited to 60
Amperes. Lastly, the surfaces "C" and "D" should also be kept clear by at least 1 inch (20mm) from
adjacent equipment and in a well ventilated area.