Danaher Motion
Hardware Installation
SERVOSTAR
®
SBD-Series ST/CT Product Family
23
Alternative Bonding Methods
Another option is to use cable bonding clamps offered by Phoenix Contact (and others). When using the
Phoenix Contact parts, make sure that a low impedance (high frequency) ground is connected from the
ground bus bar to the back panel. This can be done with a flat braid or a copper bus bar. The SK parts
from Phoenix (SK8, SK14, & SK20) slide onto the bus bar. The cable (with exposed shield) is inserted
through the SK piece and the thumbscrew on top of the SK piece is used to tighten the connection
between the cable shield and the bus bar.
Phoenix Contact Part #
Description
Cable Diameter Range
3025163
Type SK8
Shielded terminal block - for
placing the shield on bus bars.
SK8
up to 8mm or 0.315 inches
3025176
TypeSK14
Shielded terminal block - for
placing the shield on bus bars.
SK14
8mm to 14mm or 0.551 inches
3025189
Type SK20
Shielded terminal block - for
placing the shield on bus bars.
SK20
14mm to 20mm or 0.787 inches
0404428
Type AB/SS
Support for bus bar. 2 needed to
mount ground bus.
N/A
0402174
Type NLS-CU 3/10
Bus bar material - 10mm x 3mm
copper at varying lengths.
N/A
The figure below represents a side and top view of the SK device that clamps down on the shield of the
cable. The use of the Phoenix SK device is an excellent method for providing a low impedance path
between cable shield and the back panel.
copper bus bar
cable shield compressed on copper bus bar
Thumb screw to tighten down
shield to bus bar
SK(8,14,20) - Shielded
terminal block
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