3 Installation3.3 Flush mounting in control panelDS7 Soft starter 09/16 MN03901001Z-EN www.eaton.com 633.3.1 Increased coolingCooling air circulation on the DS7 soft starter can be improved by using anoptional DS7-FAN-… device fanThis 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 hourThe choice of device fan is based on the rated operational current (yyy) forthe corresponding size.Table 11: Device fans for the various rated operational currents￫ 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 e per Kelvin (K)temperature rise from +40 °C• 1 percent of rated operational current Ie per kelvin (K) oftemperature rise after +40 °C with device fan (DS7-FAN-…)￫ DS7-FAN-… device fans are temperature-controlled, always runduring ramp times (t-Start, t-Stop), and will continue runninguntil the heat sink cools down again. The fan is thenautomatically switched off.￫ It is advisable to install device fan DS7-FAN-… before installingsoft starter DS7 in the basic device.This helps prevent additional steps for removal and changes inthe installation. DANGERThe device fan must only be mounted in a de-energized state.Rated operational current (yyy) ConstructionsizeDevice fan (type) Arrangement004 - 012 BG1 DS7-FAN-032 Flush mounting016 - 032 BG2 DS7-FAN-032 Flush mounting041 - 100 BG3 DS7-FAN-100 Substructure135 - 200 BG4 DS7-FAN-200 Substructure￫ For technical data for DS7-FAN… device fans, refer to￫ Section 9.5.4, “Device fans”, page 227 and page 232.
