Increased Cooling - Eaton DS7 Manual

3.3.1 Increased cooling

￫
The supplied cooling air must have a temperature between
-5 and +40 °C. A derating is required for higher temperatures
(up to +60 .maximum):
• 2 percent of the rated operational current I
temperature rise from +40 °C
• 1 percent of rated operational current I
temperature rise after +40 °C with device fan (DS7-FAN-...)
Cooling air circulation on the DS7 soft starter can be improved by using an
optional DS7-FAN-... device fan
This makes the following possible:
• Operation at higher ambient air temperatures
• A compact setup and directly combining the unit with other components
• A higher number of starts per hour
￫
DS7-FAN-... device fans are temperature-controlled, always run
during ramp times (t-Start, t-Stop), and will continue running
until the heat sink cools down again. The fan is then
automatically switched off.
￫
It is advisable to install device fan DS7-FAN-... before installing
soft starter DS7 in the basic device.
This helps prevent additional steps for removal and changes in
the installation.
DANGER

The device fan must only be mounted in a de-energized state.
The choice of device fan is based on the rated operational current (yyy) for
the corresponding size.
Table 11: Device fans for the various rated operational currents
Rated operational current (yyy)
004 - 012
016 - 032
041 - 100
135 - 200
￫
For technical data for DS7-FAN... device fans, refer to
￫ Section 9.5.4, "Device fans", page 227 and page 232.
DS7 Soft starter 09/16 MN03901001Z-EN www.eaton.com
3.3 Flush mounting in control panel
Construction Device fan (type)
size
BG1 DS7-FAN-032
BG2 DS7-FAN-032
BG3 DS7-FAN-100
BG4 DS7-FAN-200
3 Installation
per Kelvin (K)
e
per kelvin (K) of
e
Arrangement
Flush mounting
Flush mounting
Substructure
Substructure
63