Operating instructions
K3G400-AQ23-90
`
II 2G Ex d e ib IIB T3 Gb
IBExU14ATEX1122 X /01
`
Translation of the original operating instructions
54003-4-8670
5.3 Connection in terminal box
5.3.1 Delivery condition of terminal box
The terminal box of the fan supplied by ebm-papst is equipped with the
following screwed cable glands.
Line
Outer
diameter of
wire
Terminal area
of the
terminal strip
Manufacturer
order number
(Hugro)
Mains supply
connection
M25 x 1.5
Ø 10 mm to Ø
16 mm
1.5 mm² to 4
mm²
154.2516.37
Control line
M20 x 1.5
Ø 10 mm to Ø
14 mm
0.5 mm² to 1.5
mm²
154.2014.37
Plug screw
M20 x 1.5
-
-
548.20.14
5.3.2 Preparing connection lines for the connection
Use can be made of cables with or without shielding. The following two
illustrations show the lengths to which the cables are to be cut. For
correct wiring, refer to chapter 5.3.3 Connecting cables with terminals.
Only strip the cable as far as necessary, ensuring that the cable gland is
sealed and there is no strain on the connections. Tightening torques, see
chapter 4.1 Product drawing.
Fig. 2: Recommended stripping lengths in mm (inside terminal box) for
non-shielded cables. By way of example, all cable glands are used in
this illustration. The illustration may differ from the actual device design.
Fig. 3: Recommended stripping lengths in mm (inside terminal box) for
shielded cables. By way of example, all cable glands are used in this
illustration.
5.3.3 Connecting cables with terminals
;
Open the terminal box.
;
To do so, unscrew the seven attachment screws; for tightening
torque, see chapter 4.1 Product drawing.
Take care when opening the terminal box cover. Do not
damage the terminal box seal by using tools to open it. A
protective earth is installed on the terminal box cover. This
connection must not be broken.
If the original screws of the terminal box cover have been lost, use
metric and corrosion-resistant screws; for size see chapter 4.1 Product
drawing.
;
Remove the cap from the screwed cable gland.
Only Ex e-approved plug screws may be used; see Other
types of closure, e.g. using cables, are not permitted.
;
Use one sheathed cable for each screwed cable gland.
;
Use copper wires only.
;
Check that the wires are clean.
;
Insert the line(s) (not included in the standard scope of delivery) into
the terminal box.
The mains line (PE and L1 - L3) must always be routed
separately and must not be routed together with the control line.
Pay attention to the cross-sections of the strands and cable
glands.
If using shielded cables, the shielding has to be folded back
over the wire sheath and fixed under the strain relief clamps;
see the illustration "Strain relief for shielded cables".
;
First connect the "PE" (protective earth) connection.
;
Connect the lines to the corresponding terminals.
Use a screwdriver to do so.
During the connection work, ensure that no cables splice off.
Item no. 54003-5-9970 · ENG · Revision 90396 · Release 2016-09-21 · Page 10 / 16
ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone +49 (0) 7938 81-0 · Fax +49 (0) 7938 81-110 · [email protected] · www.ebmpapst.com