BBV28581 05/2010 13
Mounting
Mounting and temperature conditions
Install the unit vertically, at ± 10°.
Do not place it close to heating elements.
Leave sufficient free space to ensure that the air required for cooling purposes can circulate from the bottom to the
top of the unit.
Free space in front of unit: 10 mm (0.4 in.) minimum.
We recommend that the drive is installed on a dissipative surface.
Removing the vent cover(s)Mounting types
≥ 50 mm
(2 in)
≥ d ≥ d
≥ 50 mm
(2 in)

Type A mounting

Free space ≥ 50 mm (2 in.) on each side, with vent cover fitted. Mounting type A is
suitable for drive operation at surrounding air temperature less than or equal to 50°C
(122°F).
≥ 50 mm
(2 in.)
≥ 50 mm
(2 in.)

Type B mounting

Drives mounted side-by-side, vent cover should be removed.

Type C mounting

Free space ≥ 50 mm (2 in.) on each side. Vent cover should be removed for operation at
surrounding air temperature above 50°C (122°F).
With these types of mounting, the drive can be used up to an ambient temperature of 50°C (122°F), with a switching frequency of 4 kHz.
Fanless drives need derating.
≥ 50 mm
(2 in.)
≥ 50 mm
(2 in.)