Carrying Out The Electrical; Installation; Installing The Power Supply; Rotating The Voltage Connection - Rittal SK 3237.xxx Assemble And Operating Instructions

5 Carrying out the electrical

5 Carrying out the electrical

installation

5.1 Installing the power supply

• Complete the electrical installation by
following the wiring plans.
Note:
For technical data refer to
the rating plate.
• Remove the red cover from the electri-
cal connection.
Fig. 3: Access the electrical connection
• Insert the connection cable with wire end
ferrules into the screwless spring termi-
nals. Choose an appropriate pre-fuse
according to the line cross-section
(2 x 0.75 – 2.5 mm² multi-wire,
2 x 1.5 – 2.5 mm² fine-wire soldered).
Caution!
If no wire end ferrules are
used, the insulation of the
individual wires should be
stripped to a max. of 9 mm
(to comply with clearance
and creepage distances).
• Re-attach the electrical connection cover.

5.2 Rotating the voltage connection

If the position of the voltage connection is
not ideally accessible, it may be rotated
through 90° and snapped into position. To
this end, press down on the release button
of the bayonet connection at the rear of the
Rittal fan-and-filter unit assembly and operating instructions
fan. Units SK 3238.xxx to SK 3239.xxx are
released by pulling out the clip (see Fig. 4)
of the bayonet connection.
Fig. 4: Release the bayonet connection
Units SK 3240.xxx, SK 3241.xxx,
SK 3243.xxx to SK 3245.xxx are released
by pressing the release button of the
bayonet connection (see Fig. 5), located
on the opposite corner from the connec-
tion terminal.
Fig. 5: Release the bayonet connection
5.3 Changing the direction of
airflow
The direction of airflow blows into the enclo-
sure from the outside as standard. Should it
become necessary to change the direction
of airflow for technical reasons (space,
specific component air routing etc.), this is
easily achieved. Simply release the fan
housing and rotate it through 180°.
To release, please follow the same proce-
dure as described under "5.2 Rotating the
voltage connection", page 9.
Please also observe the instructions out-
lined under "4.2.1 General", page 7.
EN
SK 3238.xxx
SK 3239.xxx
9